Use Bitcoinjs to Generate a New Bitcoin Address and ...

Blockchain.info responds to address generation issue posted via pastebin /r/Bitcoin

Blockchain.info responds to address generation issue posted via pastebin /Bitcoin submitted by BitcoinAllBot to BitcoinAll [link] [comments]

Nano ledger S generates new public keys each login. do those public keys expire? Also how can address be created offline and be part of the online blockchain? /r/Bitcoin

Nano ledger S generates new public keys each login. do those public keys expire? Also how can address be created offline and be part of the online blockchain? /Bitcoin submitted by BitcoinAllBot to BitcoinAll [link] [comments]

Wallet Question: With an offline Armory wallet do I really need Bitcoin-QT? Can't I just generate an address on the offline computer and add that address to my Blockchain.info account as a watch only address? From there won't I be able to receive payments and view the balance?

Or am I missing something (like all of my bitcoins)?
submitted by btcnow to Bitcoin [link] [comments]

As unlikely as it might sound, I generated an address on Blockchain.info that had been previously used. /r/Bitcoin

As unlikely as it might sound, I generated an address on Blockchain.info that had been previously used. /Bitcoin submitted by coincrazyy to BitcoinAll [link] [comments]

PSA: Blockchain.info has received reports of stolen bitcoins where the common link is a vanity address generation site. *Warning*

PSA: Blockchain.info has received reports of stolen bitcoins where the common link is a vanity address generation site. *Warning* submitted by Mtinie to peercoin [link] [comments]

Somebody transferred 0.00000547 btc to my account

Hi, somebody just transefered 0.00000547 btc to my account, and I remember reading something about that being a scam. Can somebody explain what should i do. Thx
submitted by lovelus87 to Bitcoin [link] [comments]

Some newbie questions about Trezor device and bitcoin wallets

Greetings
I have never owned bitcoin before, but I studied how it works, so I think I have some understanding. I also studied options and it seems hardware wallet is the way to go for safety reasons.
So, question number One, am I correct that:
Unlike a bank account, where you keep one account usually, with bitcoin you keep generating new addresses, so if you own 1 bitcoin, you don't store it on one address, rather, you own many addresses, each containing part of your bitcoin, and when you spend, you just expend some of the addresses and throw them away, and when you receive, you generate new addresses for every transaction, so you accumulate these addresses that each are like a banknote of sorts, each having their own nominal value, and then you spend those banknotes and never use those addresses again. Right?
Question number Two, am I correct that:
All the addresses are generated from a certain big number, "master key" of sorts, which is private to me, which can be written in a form of "seed" which is what the device will give me when initialized, which is what I can use to recover my master key if I lose or break the device?
Question number Three, who does the address generation for bitcoin wallets for new incoming transactions? I assume it's the online wallet Trezor uses, right? So the device does not store any addresses of bitcoin wallets, right? It only stores my master key?
Assuming all are correct, can you please explain, in simpliest terms, how do I restore these addresses themselves, should Trezor online wallet be unavailable? I mean, it's hardly a possibility, but assume I have my seed, or even my Trezor device, but Trezor online wallet is unavailable. Assume I made hundreds of bitcoin transactions and my bitcoin is stored in hundreds of small pieces on different addresses. How do I recover all those? How do I know when to stop, when I have recovered them all? Assuming I don't know the amount I totally own by heart, so I cannot know when to stop (When I found all my bitcoin)?
I mean, it's unlimited, right, the amount of bitcoin addresses that can be generated from my "master key" of my Trezor? So how do I know which of them contain bitcoin? Like, say I have used 200 of them and 100 of them still contain bitcoins, and I lose the device, and have to restore from seed, how does it know that it has to generate only those 200, like, how does it know it doesnt have to generate more addresses, maybe those other addresses contain some bitcoin on them too?
Or does it, generate them always in the same order, so if it sees only blank unused addresses, it assumes it's time to stop? Like, if address 0-200 are all used but 200-300 are all unused still, it assumes it's fine to stop checking?
Also, on an unrelated note, how can I be sure I made no mistake in recording the seed? Can I just wipe the device and restore it from seed right after initializing it and receiving a small bitcoin transaction, to test it and be sure that I can recover my bitcoin in case I lose it? Is the device unlimited in terms of how many times it can be wiped and restored?
Thanks in advance!
submitted by RPMahoutsukai to TREZOR [link] [comments]

BTC sent to old address

So I'm new to bitcoin and i bought some bitcoin rn and i sent it to my coinbase wallet address from yesterday because i didn't know they change every day or so, is there a way to get them back somehow, oh also i bought the btc through bitcoin.com
submitted by LucyDrop911 to Bitcoin [link] [comments]

/r/Monero Weekly Discussion – October 17, 2020 - Use this thread for general chatter, basic questions, and if you're new to Monero

Index

  1. General questions
  2. Wallet: CLI & GUI
  3. Wallet: Ledger
  4. Nodes

1. General questions

Where can I download the Monero wallet?

There are multiple Monero wallets for a wide range of devices at your disposal. Check the table below for details and download links. Attention: for extra security make sure to calculate and compare the checksum of your downloaded files when possible.
Please note the following usage of the labels:
⚠️ - Relatively new and/or beta. Use wallet with caution.
☢️ - Closed source.

Desktop wallets

Wallet Device Description Download link
"Official" GUI / CLI Windows, macOS, Linux Default implementation maintained by the core team. Use this wallet to run a full node and obtain maximum privacy. Integrates with hardware wallets. Current version: 0.16.0.3 / 0.16.0.3. GetMonero.org
MyMonero Windows, macOS, Linux Lightweight wallet -- you don't need to download the blockchain and run a node. MyMonero was developed with the assistance of the core team. It also has web-based and iOS versions. MyMonero.com
Exodus Windows, macOS, Linux ⚠️ / Multi-asset wallet. Exodus.io
ZelCore Windows, macOS, Linux ⚠️ / Multi-asset wallet. It also has Android and iOS versions. Zeltrez.io
Guarda Windows, macOS, Linux ⚠️ ☢️ / Multi-asset wallet. Guarda.co

Mobile wallets

Wallet Device Description Download link
Monerujo Android Integrates with Ledger (hardware wallet). Website: https://www.monerujo.io/. Google Play / F-Droid / GitHub
MyMonero iOS Website: https://mymonero.com/ App Store
Cake Wallet iOS Website: https://cakewallet.io/ App Store
X Wallet iOS Website: https://xwallet.tech/ App Store
Edge Wallet Android / iOS Multi-asset wallet. Website: https://edge.app/ Google Play / App Store
ZelCore Android / iOS ⚠️ / Multi-asset wallet. Website: https://zelcore.io/ Google Play / App Store
Coinomi Android / iOS ⚠️ ☢️ / Multi-asset wallet. Website: https://www.coinomi.com/ Google Play / App Store
Moxi / Guarda Android / iOS ⚠️ ☢️ / Multi-asset wallet. Website: https://guarda.co/ Google Play / App Store
Exa Wallet Android / iOS ⚠️ Website: https://exan.tech/ Google Play / App Store
Wookey Wallet Android / iOS ⚠️ Website: https://wallet.wookey.io/ Google Play / F-Droid / App Store
Exodus Android / iOS ⚠️ / Multi-asset wallet. Website: https://www.exodus.io/monero/) Google Play / [App Store](https://apps.apple.com/app/exodus-crypto-wallet/id1414384820

Web-based wallets

Wallet Description Link
MyMonero Web version of the MyMonero wallet. Web
Guarda Multi-asset wallet. Web

How long does it take for my balance to unlock?

Your balance is unlocked after 10 confirmations (which means 10 mined blocks). A block is mined approximately every two minutes on the Monero network, so that would be around 20 minutes.

How can I prove that I sent a payment?

The fastest and most direct way is by using the ExploreMonero blockchain explorer. You will need to recover the transaction key from your wallet (complete guide for GUI / CLI).

How do I buy Monero (XMR) with Bitcoin (BTC)?

There are dozens of exchanges that trade Monero against Bitcoin and other cryptocurrencies. Check out the list on CoinMarketCap and choose the option that suits you best.

How do I buy Monero (XMR) with fiat?

How can I quickly exchange my Monero (XMR) for Bitcoin (BTC)?

There are multiple ways to exchange your Monero for Bitcoin, but first of all, I'd like to remind you that if you really want to do your part for Monero, one of the simplest ways is to get in touch with your merchant/service provider and request for it to accept Monero directly as payment. Ask the service provider to visit the official website and our communication channels if he or she needs help with system integration.
That being said, the community has been recommending two services in particular, XMR.TO and MorphToken. These services are only recommendations and are operated by entities outside the control of the Monero Project. Be diligent.

How do I mine Monero? And other mining questions.

The correct place to ask questions and discuss the Monero mining scene is in the dedicated subreddit MoneroMining. That being said, you can find a list of pools and available mining software in the GetMonero.org website.

2. Wallet: CLI & GUI

Why I can't see my balance? Where is my XMR?

Before any action there are two things to check:
  1. Are you using the latest available version of the wallet? A new version is released roughly every 6 months, so make sure you're using the current release (compare the release on GetMonero.org with your wallet's version on Settings, under Debug info).
  2. Is your wallet fully synchronized? If it isn't, wait the sync to complete.
Because Monero is different from Bitcoin, wallet synchronization is not instant. The software needs to synchronize the blockchain and use your private keys to identify your transactions. Check in the lower left corner (GUI) if the wallet is synchronized.
You can't send transactions and your balance might be wrong or unavailable if the wallet is not synced with the network. So please wait.
If this is not a sufficient answer for your case and you're looking for more information, please see this answer on StackExchange.

How do I upgrade my wallet to the newest version?

This question is beautifully answered on StackExchange.

Why does it take so long to sync the wallet [for the first time]?

You have decided to use Monero's wallet and run a local node. Congratulations! You have chosen the safest and most secure option for your privacy, but unfortunately this has an initial cost. The first reason for the slowness is that you will need to download the entire blockchain, which is considerably heavy (+70 GB) and constantly growing. There are technologies being implemented in Monero to slow this growth, however it is inevitable to make this initial download to run a full node. Consider syncing to a device that has an SSD instead of an HDD, as this greatly impacts the speed of synchronization.
Now that the blockchain is on your computer, the next time you run the wallet you only need to download new blocks, which should take seconds or minutes (depending on how often you use the wallet).

I don't want to download the blockchain, how can I skip that?

The way to skip downloading the blockchain is connecting your wallet to a public remote node. You can follow this guide on how to set it up. You can find a list of public remote nodes on MoneroWorld.
Be advised that when using a public remote node you lose some of your privacy. A public remote node is able to identify your IP and opens up a range for certain attacks that further diminish your privacy. A remote node can't see your balance and it can't spend your XMR.

How do I restore my wallet from the mnemonic seed or from the keys?

To restore your wallet with the 25 word mnemonic seed, please see this guide.
To restore your wallet with your keys, please see this guide.

3. Wallet: Ledger

How do I generate a Ledger Monero Wallet with the GUI or CLI?

This question is beautifully answered on StackExchange. Check this page for the GUI instructions, and this page for the CLI instructions.

4. Nodes

How can my local node become a public remote node?

If you want to support other Monero users by making your node public, you can follow the instructions on MoneroWorld, under the section "How To Include Your Node On Moneroworld".

How can I connect my node via Tor?

This question is beautifully answered on StackExchange.
submitted by AutoModerator to Monero [link] [comments]

/r/Monero Weekly Discussion – October 24, 2020 - Use this thread for general chatter, basic questions, and if you're new to Monero

Index

  1. General questions
  2. Wallet: CLI & GUI
  3. Wallet: Ledger
  4. Nodes

1. General questions

Where can I download the Monero wallet?

There are multiple Monero wallets for a wide range of devices at your disposal. Check the table below for details and download links. Attention: for extra security make sure to calculate and compare the checksum of your downloaded files when possible.
Please note the following usage of the labels:
⚠️ - Relatively new and/or beta. Use wallet with caution.
☢️ - Closed source.

Desktop wallets

Wallet Device Description Download link
"Official" GUI / CLI Windows, macOS, Linux Default implementation maintained by the core team. Use this wallet to run a full node and obtain maximum privacy. Integrates with hardware wallets. Current version: 0.16.0.3 / 0.16.0.3. GetMonero.org
MyMonero Windows, macOS, Linux Lightweight wallet -- you don't need to download the blockchain and run a node. MyMonero was developed with the assistance of the core team. It also has web-based and iOS versions. MyMonero.com
Exodus Windows, macOS, Linux ⚠️ / Multi-asset wallet. Exodus.io
ZelCore Windows, macOS, Linux ⚠️ / Multi-asset wallet. It also has Android and iOS versions. Zeltrez.io
Guarda Windows, macOS, Linux ⚠️ ☢️ / Multi-asset wallet. Guarda.co

Mobile wallets

Wallet Device Description Download link
Monerujo Android Integrates with Ledger (hardware wallet). Website: https://www.monerujo.io/. Google Play / F-Droid / GitHub
MyMonero iOS Website: https://mymonero.com/ App Store
Cake Wallet iOS Website: https://cakewallet.io/ App Store
X Wallet iOS Website: https://xwallet.tech/ App Store
Edge Wallet Android / iOS Multi-asset wallet. Website: https://edge.app/ Google Play / App Store
ZelCore Android / iOS ⚠️ / Multi-asset wallet. Website: https://zelcore.io/ Google Play / App Store
Coinomi Android / iOS ⚠️ ☢️ / Multi-asset wallet. Website: https://www.coinomi.com/ Google Play / App Store
Moxi / Guarda Android / iOS ⚠️ ☢️ / Multi-asset wallet. Website: https://guarda.co/ Google Play / App Store
Exa Wallet Android / iOS ⚠️ Website: https://exan.tech/ Google Play / App Store
Wookey Wallet Android / iOS ⚠️ Website: https://wallet.wookey.io/ Google Play / F-Droid / App Store
Exodus Android / iOS ⚠️ / Multi-asset wallet. Website: https://www.exodus.io/monero/) Google Play / [App Store](https://apps.apple.com/app/exodus-crypto-wallet/id1414384820

Web-based wallets

Wallet Description Link
MyMonero Web version of the MyMonero wallet. Web
Guarda Multi-asset wallet. Web

How long does it take for my balance to unlock?

Your balance is unlocked after 10 confirmations (which means 10 mined blocks). A block is mined approximately every two minutes on the Monero network, so that would be around 20 minutes.

How can I prove that I sent a payment?

The fastest and most direct way is by using the ExploreMonero blockchain explorer. You will need to recover the transaction key from your wallet (complete guide for GUI / CLI).

How do I buy Monero (XMR) with Bitcoin (BTC)?

There are dozens of exchanges that trade Monero against Bitcoin and other cryptocurrencies. Check out the list on CoinMarketCap and choose the option that suits you best.

How do I buy Monero (XMR) with fiat?

How can I quickly exchange my Monero (XMR) for Bitcoin (BTC)?

There are multiple ways to exchange your Monero for Bitcoin, but first of all, I'd like to remind you that if you really want to do your part for Monero, one of the simplest ways is to get in touch with your merchant/service provider and request for it to accept Monero directly as payment. Ask the service provider to visit the official website and our communication channels if he or she needs help with system integration.
That being said, the community has been recommending two services in particular, XMR.TO and MorphToken. These services are only recommendations and are operated by entities outside the control of the Monero Project. Be diligent.

How do I mine Monero? And other mining questions.

The correct place to ask questions and discuss the Monero mining scene is in the dedicated subreddit MoneroMining. That being said, you can find a list of pools and available mining software in the GetMonero.org website.

2. Wallet: CLI & GUI

Why I can't see my balance? Where is my XMR?

Before any action there are two things to check:
  1. Are you using the latest available version of the wallet? A new version is released roughly every 6 months, so make sure you're using the current release (compare the release on GetMonero.org with your wallet's version on Settings, under Debug info).
  2. Is your wallet fully synchronized? If it isn't, wait the sync to complete.
Because Monero is different from Bitcoin, wallet synchronization is not instant. The software needs to synchronize the blockchain and use your private keys to identify your transactions. Check in the lower left corner (GUI) if the wallet is synchronized.
You can't send transactions and your balance might be wrong or unavailable if the wallet is not synced with the network. So please wait.
If this is not a sufficient answer for your case and you're looking for more information, please see this answer on StackExchange.

How do I upgrade my wallet to the newest version?

This question is beautifully answered on StackExchange.

Why does it take so long to sync the wallet [for the first time]?

You have decided to use Monero's wallet and run a local node. Congratulations! You have chosen the safest and most secure option for your privacy, but unfortunately this has an initial cost. The first reason for the slowness is that you will need to download the entire blockchain, which is considerably heavy (+70 GB) and constantly growing. There are technologies being implemented in Monero to slow this growth, however it is inevitable to make this initial download to run a full node. Consider syncing to a device that has an SSD instead of an HDD, as this greatly impacts the speed of synchronization.
Now that the blockchain is on your computer, the next time you run the wallet you only need to download new blocks, which should take seconds or minutes (depending on how often you use the wallet).

I don't want to download the blockchain, how can I skip that?

The way to skip downloading the blockchain is connecting your wallet to a public remote node. You can follow this guide on how to set it up. You can find a list of public remote nodes on MoneroWorld.
Be advised that when using a public remote node you lose some of your privacy. A public remote node is able to identify your IP and opens up a range for certain attacks that further diminish your privacy. A remote node can't see your balance and it can't spend your XMR.

How do I restore my wallet from the mnemonic seed or from the keys?

To restore your wallet with the 25 word mnemonic seed, please see this guide.
To restore your wallet with your keys, please see this guide.

3. Wallet: Ledger

How do I generate a Ledger Monero Wallet with the GUI or CLI?

This question is beautifully answered on StackExchange. Check this page for the GUI instructions, and this page for the CLI instructions.

4. Nodes

How can my local node become a public remote node?

If you want to support other Monero users by making your node public, you can follow the instructions on MoneroWorld, under the section "How To Include Your Node On Moneroworld".

How can I connect my node via Tor?

This question is beautifully answered on StackExchange.
submitted by AutoModerator to Monero [link] [comments]

Ultimate glossary of crypto currency terms, acronyms and abbreviations

I thought it would be really cool to have an ultimate guide for those new to crypto currencies and the terms used. I made this mostly for beginner’s and veterans alike. I’m not sure how much use you will get out of this. Stuff gets lost on Reddit quite easily so I hope this finds its way to you. Included in this list, I have included most of the terms used in crypto-communities. I have compiled this list from a multitude of sources. The list is in alphabetical order and may include some words/terms not exclusive to the crypto world but may be helpful regardless.
2FA
Two factor authentication. I highly advise that you use it.
51% Attack:
A situation where a single malicious individual or group gains control of more than half of a cryptocurrency network’s computing power. Theoretically, it could allow perpetrators to manipulate the system and spend the same coin multiple times, stop other users from completing blocks and make conflicting transactions to a chain that could harm the network.
Address (or Addy):
A unique string of numbers and letters (both upper and lower case) used to send, receive or store cryptocurrency on the network. It is also the public key in a pair of keys needed to sign a digital transaction. Addresses can be shared publicly as a text or in the form of a scannable QR code. They differ between cryptocurrencies. You can’t send Bitcoin to an Ethereum address, for example.
Altcoin (alternative coin): Any digital currency other than Bitcoin. These other currencies are alternatives to Bitcoin regarding features and functionalities (e.g. faster confirmation time, lower price, improved mining algorithm, higher total coin supply). There are hundreds of altcoins, including Ether, Ripple, Litecoin and many many others.
AIRDROP:
An event where the investors/participants are able to receive free tokens or coins into their digital wallet.
AML: Defines Anti-Money Laundering laws**.**
ARBITRAGE:
Getting risk-free profits by trading (simultaneous buying and selling of the cryptocurrency) on two different exchanges which have different prices for the same asset.
Ashdraked:
Being Ashdraked is essentially a more detailed version of being Zhoutonged. It is when you lose all of your invested capital, but you do so specifically by shorting Bitcoin. The expression “Ashdraked” comes from a story of a Romanian cryptocurrency investor who insisted upon shorting BTC, as he had done so successfully in the past. When the price of BTC rose from USD 300 to USD 500, the Romanian investor lost all of his money.
ATH (All Time High):
The highest price ever achieved by a cryptocurrency in its entire history. Alternatively, ATL is all time low
Bearish:
A tendency of prices to fall; a pessimistic expectation that the value of a coin is going to drop.
Bear trap:
A manipulation of a stock or commodity by investors.
Bitcoin:
The very first, and the highest ever valued, mass-market open source and decentralized cryptocurrency and digital payment system that runs on a worldwide peer to peer network. It operates independently of any centralized authorities
Bitconnect:
One of the biggest scams in the crypto world. it was made popular in the meme world by screaming idiot Carlos Matos, who infamously proclaimed," hey hey heeeey” and “what's a what's a what's up wasssssssssuuuuuuuuuuuuup, BitConneeeeeeeeeeeeeeeeeeeeeeeect!”. He is now in the mentally ill meme hall of fame.
Block:
A package of permanently recorded data about transactions occurring every time period (typically about 10 minutes) on the blockchain network. Once a record has been completed and verified, it goes into a blockchain and gives way to the next block. Each block also contains a complex mathematical puzzle with a unique answer, without which new blocks can’t be added to the chain.
Blockchain:
An unchangeable digital record of all transactions ever made in a particular cryptocurrency and shared across thousands of computers worldwide. It has no central authority governing it. Records, or blocks, are chained to each other using a cryptographic signature. They are stored publicly and chronologically, from the genesis block to the latest block, hence the term blockchain. Anyone can have access to the database and yet it remains incredibly difficult to hack.
Bullish:
A tendency of prices to rise; an optimistic expectation that a specific cryptocurrency will do well and its value is going to increase.
BTFD:
Buy the fucking dip. This advise was bestowed upon us by the gods themselves. It is the iron code to crypto enthusiasts.
Bull market:
A market that Cryptos are going up.
Consensus:
An agreement among blockchain participants on the validity of data. Consensus is reached when the majority of nodes on the network verify that the transaction is 100% valid.
Crypto bubble:
The instability of cryptocurrencies in terms of price value
Cryptocurrency:
A type of digital currency, secured by strong computer code (cryptography), that operates independently of any middlemen or central authoritie
Cryptography:
The art of converting sensitive data into a format unreadable for unauthorized users, which when decoded would result in a meaningful statement.
Cryptojacking:
The use of someone else’s device and profiting from its computational power to mine cryptocurrency without their knowledge and consent.
Crypto-Valhalla:
When HODLers(holders) eventually cash out they go to a place called crypto-Valhalla. The strong will be separated from the weak and the strong will then be given lambos.
DAO:
Decentralized Autonomous Organizations. It defines A blockchain technology inspired organization or corporation that exists and operates without human intervention.
Dapp (decentralized application):
An open-source application that runs and stores its data on a blockchain network (instead of a central server) to prevent a single failure point. This software is not controlled by the single body – information comes from people providing other people with data or computing power.
Decentralized:
A system with no fundamental control authority that governs the network. Instead, it is jointly managed by all users to the system.
Desktop wallet:
A wallet that stores the private keys on your computer, which allow the spending and management of your bitcoins.
DILDO:
Long red or green candles. This is a crypto signal that tells you that it is not favorable to trade at the moment. Found on candlestick charts.
Digital Signature:
An encrypted digital code attached to an electronic document to prove that the sender is who they say they are and confirm that a transaction is valid and should be accepted by the network.
Double Spending:
An attack on the blockchain where a malicious user manipulates the network by sending digital money to two different recipients at exactly the same time.
DYOR:
Means do your own research.
Encryption:
Converting data into code to protect it from unauthorized access, so that only the intended recipient(s) can decode it.
Eskrow:
the practice of having a third party act as an intermediary in a transaction. This third party holds the funds on and sends them off when the transaction is completed.
Ethereum:
Ethereum is an open source, public, blockchain-based platform that runs smart contracts and allows you to build dapps on it. Ethereum is fueled by the cryptocurrency Ether.
Exchange:
A platform (centralized or decentralized) for exchanging (trading) different forms of cryptocurrencies. These exchanges allow you to exchange cryptos for local currency. Some popular exchanges are Coinbase, Bittrex, Kraken and more.
Faucet:
A website which gives away free cryptocurrencies.
Fiat money:
Fiat currency is legal tender whose value is backed by the government that issued it, such as the US dollar or UK pound.
Fork:
A split in the blockchain, resulting in two separate branches, an original and a new alternate version of the cryptocurrency. As a single blockchain forks into two, they will both run simultaneously on different parts of the network. For example, Bitcoin Cash is a Bitcoin fork.
FOMO:
Fear of missing out.
Frictionless:
A system is frictionless when there are zero transaction costs or trading retraints.
FUD:
Fear, Uncertainty and Doubt regarding the crypto market.
Gas:
A fee paid to run transactions, dapps and smart contracts on Ethereum.
Halving:
A 50% decrease in block reward after the mining of a pre-specified number of blocks. Every 4 years, the “reward” for successfully mining a block of bitcoin is reduced by half. This is referred to as “Halving”.
Hardware wallet:
Physical wallet devices that can securely store cryptocurrency maximally. Some examples are Ledger Nano S**,** Digital Bitbox and more**.**
Hash:
The process that takes input data of varying sizes, performs an operation on it and converts it into a fixed size output. It cannot be reversed.
Hashing:
The process by which you mine bitcoin or similar cryptocurrency, by trying to solve the mathematical problem within it, using cryptographic hash functions.
HODL:
A Bitcoin enthusiast once accidentally misspelled the word HOLD and it is now part of the bitcoin legend. It can also mean hold on for dear life.
ICO (Initial Coin Offering):
A blockchain-based fundraising mechanism, or a public crowd sale of a new digital coin, used to raise capital from supporters for an early stage crypto venture. Beware of these as there have been quite a few scams in the past.
John mcAfee:
A man who will one day eat his balls on live television for falsely predicting bitcoin going to 100k. He has also become a small meme within the crypto community for his outlandish claims.
JOMO:
Joy of missing out. For those who are so depressed about missing out their sadness becomes joy.
KYC:
Know your customer(alternatively consumer).
Lambo:
This stands for Lamborghini. A small meme within the investing community where the moment someone gets rich they spend their earnings on a lambo. One day we will all have lambos in crypto-valhalla.
Ledger:
Away from Blockchain, it is a book of financial transactions and balances. In the world of crypto, the blockchain functions as a ledger. A digital currency’s ledger records all transactions which took place on a certain block chain network.
Leverage:
Trading with borrowed capital (margin) in order to increase the potential return of an investment.
Liquidity:
The availability of an asset to be bought and sold easily, without affecting its market price.
of the coins.
Margin trading:
The trading of assets or securities bought with borrowed money.
Market cap/MCAP:
A short-term for Market Capitalization. Market Capitalization refers to the market value of a particular cryptocurrency. It is computed by multiplying the Price of an individual unit of coins by the total circulating supply.
Miner:
A computer participating in any cryptocurrency network performing proof of work. This is usually done to receive block rewards.
Mining:
The act of solving a complex math equation to validate a blockchain transaction using computer processing power and specialized hardware.
Mining contract:
A method of investing in bitcoin mining hardware, allowing anyone to rent out a pre-specified amount of hashing power, for an agreed amount of time. The mining service takes care of hardware maintenance, hosting and electricity costs, making it simpler for investors.
Mining rig:
A computer specially designed for mining cryptocurrencies.
Mooning:
A situation the price of a coin rapidly increases in value. Can also be used as: “I hope bitcoin goes to the moon”
Node:
Any computing device that connects to the blockchain network.
Open source:
The practice of sharing the source code for a piece of computer software, allowing it to be distributed and altered by anyone.
OTC:
Over the counter. Trading is done directly between parties.
P2P (Peer to Peer):
A type of network connection where participants interact directly with each other rather than through a centralized third party. The system allows the exchange of resources from A to B, without having to go through a separate server.
Paper wallet:
A form of “cold storage” where the private keys are printed onto a piece of paper and stored offline. Considered as one of the safest crypto wallets, the truth is that it majors in sweeping coins from your wallets.
Pre mining:
The mining of a cryptocurrency by its developers before it is released to the public.
Proof of stake (POS):
A consensus distribution algorithm which essentially rewards you based upon the amount of the coin that you own. In other words, more investment in the coin will leads to more gain when you mine with this protocol In Proof of Stake, the resource held by the “miner” is their stake in the currency.
PROOF OF WORK (POW) :
The competition of computers competing to solve a tough crypto math problem. The first computer that does this is allowed to create new blocks and record information.” The miner is then usually rewarded via transaction fees.
Protocol:
A standardized set of rules for formatting and processing data.
Public key / private key:
A cryptographic code that allows a user to receive cryptocurrencies into an account. The public key is made available to everyone via a publicly accessible directory, and the private key remains confidential to its respective owner. Because the key pair is mathematically related, whatever is encrypted with a public key may only be decrypted by its corresponding private key.
Pump and dump:
Massive buying and selling activity of cryptocurrencies (sometimes organized and to one’s benefit) which essentially result in a phenomenon where the significant surge in the value of coin followed by a huge crash take place in a short time frame.
Recovery phrase:
A set of phrases you are given whereby you can regain or access your wallet should you lose the private key to your wallets — paper, mobile, desktop, and hardware wallet. These phrases are some random 12–24 words. A recovery Phrase can also be called as Recovery seed, Seed Key, Recovery Key, or Seed Phrase.
REKT:
Referring to the word “wrecked”. It defines a situation whereby an investor or trader who has been ruined utterly following the massive losses suffered in crypto industry.
Ripple:
An alternative payment network to Bitcoin based on similar cryptography. The ripple network uses XRP as currency and is capable of sending any asset type.
ROI:
Return on investment.
Safu:
A crypto term for safe popularized by the Bizonnaci YouTube channel after the CEO of Binance tweeted
“Funds are safe."
“the exchage I use got hacked!”“Oh no, are your funds safu?”
“My coins better be safu!”


Sats/Satoshi:
The smallest fraction of a bitcoin is called a “satoshi” or “sat”. It represents one hundred-millionth of a bitcoin and is named after Satoshi Nakamoto.
Satoshi Nakamoto:
This was the pseudonym for the mysterious creator of Bitcoin.
Scalability:
The ability of a cryptocurrency to contain the massive use of its Blockchain.
Sharding:
A scaling solution for the Blockchain. It is generally a method that allows nodes to have partial copies of the complete blockchain in order to increase overall network performance and consensus speeds.
Shitcoin:
Coin with little potential or future prospects.
Shill:
Spreading buzz by heavily promoting a particular coin in the community to create awareness.
Short position:
Selling of a specific cryptocurrency with an expectation that it will drop in value.
Silk road:
The online marketplace where drugs and other illicit items were traded for Bitcoin. This marketplace is using accessed through “TOR”, and VPNs. In October 2013, a Silk Road was shut down in by the FBI.
Smart Contract:
Certain computational benchmarks or barriers that have to be met in turn for money or data to be deposited or even be used to verify things such as land rights.
Software Wallet:
A crypto wallet that exists purely as software files on a computer. Usually, software wallets can be generated for free from a variety of sources.
Solidity:
A contract-oriented coding language for implementing smart contracts on Ethereum. Its syntax is similar to that of JavaScript.
Stable coin:
A cryptocoin with an extremely low volatility that can be used to trade against the overall market.
Staking:
Staking is the process of actively participating in transaction validation (similar to mining) on a proof-of-stake (PoS) blockchain. On these blockchains, anyone with a minimum-required balance of a specific cryptocurrency can validate transactions and earn Staking rewards.
Surge:
When a crypto currency appreciates or goes up in price.
Tank:
The opposite of mooning. When a coin tanks it can also be described as crashing.
Tendies
For traders , the chief prize is “tendies” (chicken tenders, the treat an overgrown man-child receives for being a “Good Boy”) .
Token:
A unit of value that represents a digital asset built on a blockchain system. A token is usually considered as a “coin” of a cryptocurrency, but it really has a wider functionality.
TOR: “The Onion Router” is a free web browser designed to protect users’ anonymity and resist censorship. Tor is usually used surfing the web anonymously and access sites on the “Darkweb”.
Transaction fee:
An amount of money users are charged from their transaction when sending cryptocurrencies.
Volatility:
A measure of fluctuations in the price of a financial instrument over time. High volatility in bitcoin is seen as risky since its shifting value discourages people from spending or accepting it.
Wallet:
A file that stores all your private keys and communicates with the blockchain to perform transactions. It allows you to send and receive bitcoins securely as well as view your balance and transaction history.
Whale:
An investor that holds a tremendous amount of cryptocurrency. Their extraordinary large holdings allow them to control prices and manipulate the market.
Whitepaper:

A comprehensive report or guide made to understand an issue or help decision making. It is also seen as a technical write up that most cryptocurrencies provide to take a deep look into the structure and plan of the cryptocurrency/Blockchain project. Satoshi Nakamoto was the first to release a whitepaper on Bitcoin, titled “Bitcoin: A Peer-to-Peer Electronic Cash System” in late 2008.
And with that I finally complete my odyssey. I sincerely hope that this helped you and if you are new, I welcome you to crypto. If you read all of that I hope it increased, you in knowledge.
my final definition:
Crypto-Family:
A collection of all the HODLers and crypto fanatics. A place where all people alike unite over a love for crypto.
We are all in this together as we pioneer the new world that is crypto currency. I wish you a great day and Happy HODLing.
-u/flacciduck
feel free to comment words or terms that you feel should be included or about any errors I made.
Edit1:some fixes were made and added words.
submitted by flacciduck to CryptoCurrency [link] [comments]

Technical: Confidential Transactions and Their Implementation Tradeoffs

As requested by estradata here: https://old.reddit.com/Bitcoin/comments/iylou9/what_are_some_of_the_latest_innovations_in_the/g6heez1/
It is a general issue that crops up at the extremes of cryptography, with quantum breaks being just one of the extremes of (classical) cryptography.

Computational vs Information-Theoretic

The dichotomy is between computationally infeasible vs informationally-theoretic infeasible. Basically:
Quantum breaks represent a possible reduction in computational infeasibility of certain things, but not information-theoretic infeasibility.
For example, suppose you want to know what 256-bit preimages map to 256-bit hashes. In theory, you just need to build a table with 2256 entries and start from 0x0000000000000000000000000000000000000000000000000000000000000000 and so on. This is computationally infeasible, but not information-theoretic infeasible.
However, suppose you want to know what preimages, of any size, map to 256-bit hashes. Since the preimages can be of any size, after finishing with 256-bit preimages, you have to proceed to 257-bit preimages. And so on. And there is no size limit, so you will literally never finish. Even if you lived forever, you would not complete it. This is information-theoretic infeasible.

Commitments

How does this relate to confidential transactions? Basically, every confidential transaction simply hides the value behind a homomorphic commitment. What is a homomorphic commitment? Okay, let's start with commitments. A commitment is something which lets you hide something, and later reveal what you hid. Until you reveal it, even if somebody has access to the commitment, they cannot reverse it to find out what you hid. This is called the "hiding property" of commitments. However, when you do reveal it (or "open the commitment"), then you cannot replace what you hid with some other thing. This is called the "binding property" of commitments.
For example, a hash of a preimage is a commitment. Suppose I want to commit to something. For example, I want to show that I can predict the future using the energy of a spare galaxy I have in my pocket. I can hide that something by hashing a description of the future. Then I can give the hash to you. You still cannot learn the future, because it's just a hash, and you can't reverse the hash ("hiding"). But suppose the future event occurs. I can reveal that I did, in fact, know the future. So I give you the description, and you hash it and compare it to the hash I gave earlier. Because of preimage resistance, I cannot retroactively change what I hid in the hash, so what I gave must have been known to me at the time that I gave you the commitment i..e. hash ("binding").

Homomorphic Commitments

A homomorphic commitment simply means that if I can do certain operations on preimages of the commitment scheme, there are certain operations on the commitments that would create similar ("homo") changes ("morphic") to the commitments. For example, suppose I have a magical function h() which is a homomorphic commitment scheme. It can hide very large (near 256-bit) numbers. Then if h() is homomorphic, there may be certain operations on numbers behind the h() that have homomorphisms after the h(). For example, I might have an operation <+> that is homomorphic in h() on +, or in other words, if I have two large numbers a and b, then h(a + b) = h(a) <+> h(b). + and <+> are different operations, but they are homomorphic to each other.
For example, elliptic curve scalars and points have homomorphic operations. Scalars (private keys) are "just" very large near-256-bit numbers, while points are a scalar times a standard generator point G. Elliptic curve operations exist where there is a <+> between points that is homomorphic on standard + on scalars, and a <*> between a scalar and a point that is homomorphic on standard * multiplication on scalars.
For example, suppose I have two large scalars a and b. I can use elliptic curve points as a commitment scheme: I can take a <*> G to generate a point A. It is hiding since nobody can learn what a is unless I reveal it (a and A can be used in standard ECDSA private-public key cryptography, with the scalar a as the private key and the point A as the public key, and the a cannot be derived even if somebody else knows A). Thus, it is hiding. At the same time, for a particular point A and standard generator point G, there is only one possible scalar a which when "multiplied" with G yields A. So scalars and elliptic curve points are a commitment scheme, with both hiding and binding properties.
Now, as mentioned there is a <+> operation on points that is homomorphic to the + operation on corresponding scalars. For example, suppose there are two scalars a and b. I can compute (a + b) <*> G to generate a particular point. But even if I don't know scalars a and b, but I do know points A = a <*> G and B = b <*> G, then I can use A <+> B to derive (a + b) <*> G (or equivalently, (a <*> G) <+> (b <*> G) == (a + b) <*> G). This makes points a homomorphic commitment scheme on scalars.

Confidential Transactions: A Sketch

This is useful since we can easily use the near-256-bit scalars in SECP256K1 elliptic curves to easily represent values in a monetary system, and hide those values by using a homomorphic commitment scheme. We can use the hiding property to prevent people from learning the values of the money we are sending and receiving.
Now, in a proper cryptocurrency, a normal, non-coinbase transaction does not create or destroy coins: the values of the input coins are equal to the value of the output coins. We can use a homomorphic commitment scheme. Suppose I have a transaction that consumes an input value a and creates two output values b and c. That is, a = b + c, i.e. the sum of all inputs a equals the sum of all outputs b and c. But remember, with a homomorphic commitment scheme like elliptic curve points, there exists a <+> operation on points that is homomorphic to the ordinary school-arithmetic + addition on large numbers. So, confidential transactions can use points a <*> G as input, and points b <*> G and c <*> G as output, and we can easily prove that a <*> G = (b <*> G) <+> (c <*> G) if a = b + c, without revealing a, b, or c to anyone.

Pedersen Commitments

Actually, we cannot just use a <*> G as a commitment scheme in practice. Remember, Bitcoin has a cap on the number of satoshis ever to be created, and it's less than 253 satoshis, which is fairly trivial. I can easily compute all values of a <*> G for all values of a from 0 to 253 and know which a <*> G corresponds to which actual amount a. So in confidential transactions, we cannot naively use a <*> G commitments, we need Pedersen commitments.
If you know what a "salt" is, then Pedersen commitments are fairly obvious. A "salt" is something you add to e.g. a password so that the hash of the password is much harder to attack. Humans are idiots and when asked to generate passwords, will output a password that takes less than 230 possibilities, which is fairly easy to grind. So what you do is that you "salt" a password by prepending a random string to it. You then hash the random string + password, and store the random string --- the salt --- together with the hash in your database. Then when somebody logs in, you take the password, prepend the salt, hash, and check if the hash matches with the in-database hash, and you let them log in. Now, with a hash, even if somebody copies your password database, the can't get the password. They're hashed. But with a salt, even techniques like rainbow tables make a hacker's life even harder. They can't hash a possible password and check every hash in your db for something that matches. Instead, if they get a possible password, they have to prepend each salt, hash, then compare. That greatly increases the computational needs of a hacker, which is why salts are good.
What a Pedersen commitment is, is a point a <*> H, where a is the actual value you commit to, plus <+> another point r <*> G. H here is a second standard generator point, different from G. The r is the salt in the Pedersen commitment. It makes it so that even if you show (a <*> H) <+> (r <*> G) to somebody, they can't grind all possible values of a and try to match it with your point --- they also have to grind r (just as with the password-salt example above). And r is much larger, it can be a true near-256-bit number that is the range of scalars in SECP256K1, whereas a is constrained to "reasonable" numbers of satoshi, which cannot exceed 21 million Bitcoins.
Now, in order to validate a transaction with input a and outputs b and c, you only have to prove a = b + c. Suppose we are hiding those amounts using Pedersen commitments. You have an input of amount a, and you know a and r. The blockchain has an amount (a <*> H) <+> (r <*> G). In order to create the two outputs b and c, you just have to create two new r scalars such that r = r[0] + r[1]. This is trivial, you just select a new random r[0] and then compute r[1] = r - r[0], it's just basic algebra.
Then you create a transaction consuming the input (a <*> H) <+> (r <*> G) and outputs (b <*> H) <+> (r[0] <*> G) and (c <*> H) <+> (r[1] <*> G). You know that a = b + c, and r = r[0] + r[1], while fullnodes around the world, who don't know any of the amounts or scalars involved, can just take the points (a <*> H) <+> (r <*> G) and see if it equals (b <*> H) <+> (r[0] <*> G) <+> (c <*> H) <+> (r[1] <*> G). That is all that fullnodes have to validate, they just need to perform <+> operations on points and comparison on points, and from there they validate transactions, all without knowing the actual values involved.

Computational Binding, Information-Theoretic Hiding

Like all commitments, Pedersen Commitments are binding and hiding.
However, there are really two kinds of commitments:
What does this mean? It's just a measure of how "impossible" binding vs hiding is. Pedersen commitments are computationally binding, meaning that in theory, a user of this commitment with arbitrary time and space and energy can, in theory, replace the amount with something else. However, it is information-theoretic hiding, meaning an attacker with arbitrary time and space and energy cannot figure out exactly what got hidden behind the commitment.
But why?
Now, we have been using a and a <*> G as private keys and public keys in ECDSA and Schnorr. There is an operation <*> on a scalar and a point that generates another point, but we cannot "revrese" this operation. For example, even if I know A, and know that A = a <*> G, but do not know a, I cannot derive a --- there is no operation between A G that lets me know a.
Actually there is: I "just" need to have so much time, space, and energy that I just start counting a from 0 to 2256 and find which a results in A = a <*> G. This is a computational limit: I don't have a spare universe in my back pocket I can use to do all those computations.
Now, replace a with h and A with H. Remember that Pedersen commitments use a "second" standard generator point. The generator points G and H are "not really special" --- they are just random points on the curve that we selected and standardized. There is no operation H G such that I can learn h where H = h <*> G, though if I happen to have a spare universe in my back pocket I can "just" brute force it.
Suppose I do have a spare universe in my back pocket, and learn h = H G such that H = h <*> G. What can I do in Pedersen commitments?
Well, I have an amount a that is committed to by (a <*> H) <+> (r <*> G). But I happen to know h! Suppose I want to double my money a without involving Elon Musk. Then:
That is what we mean by computationally binding: if I can compute h such that H = h <*> G, then I can find another number which opens the same commitment. And of course I'd make sure that number is much larger than what I originally had in that address!
Now, the reason why it is "only" computationally binding is that it is information-theoretically hiding. Suppose somebody knows h, but has no money in the cryptocurrency. All they see are points. They can try to find what the original amounts are, but because any amount can be mapped to "the same" point with knowledge of h (e.g. in the above, a and 2 * a got mapped to the same point by "just" replacing the salt r with r - a * h; this can be done for 3 * a, 4 * a etc.), they cannot learn historical amounts --- the a in historical amounts could be anything.
The drawback, though, is that --- as seen above --- arbitrary inflation is now introduced once somebody knows h. They can multiply their money by any arbitrary factor with knowledge of h.
It is impossible to have both perfect hiding (i.e. historical amounts remain hidden even after a computational break) and perfect binding (i.e. you can't later open the commitment to a different, much larger, amount).
Pedersen commitments just happen to have perfect hiding, but only computationally-infeasible binding. This means they allow hiding historical values, but in case of anything that allows better computational power --- including but not limited to quantum breaks --- they allow arbitrary inflation.

Changing The Tradeoffs with ElGamal Commitments

An ElGamal commitment is just a Pedersen commitment, but with the point r <*> G also stored in a separate section of the transaction.
This commits the r, and fixes it to a specific value. This prevents me from opening my (a <*> H) <+> (r <*> G) as ((2 * a) <*> H) <+> ((r - a * h) <*> G), because the (r - a * h) would not match the r <*> G sitting in a separate section of the transaction. This forces me to be bound to that specific value, and no amount of computation power will let me escape --- it is information-theoretically binding i.e. perfectly binding.
But that is now computationally hiding. An evil surveillor with arbitrary time and space can focus on the r <*> G sitting in a separate section of the transaction, and grind r from 0 to 2256 to determine what r matches that point. Then from there, they can negate r to get (-r) <*> G and add it to the (a <*> H) <+> (r <*> G) to get a <*> H, and then grind that to determine the value a. With massive increases in computational ability --- including but not limited to quantum breaks --- an evil surveillor can see all the historical amounts of confidential transactions.

Conclusion

This is the source of the tradeoff: either you design confidential transactions so in case of a quantum break, historical transactions continue to hide their amounts, but inflation of the money is now unavoidable, OR you make the money supply sacrosanct, but you potentially sacrifice amount hiding in case of some break, including but not limited to quantum breaks.
submitted by almkglor to Bitcoin [link] [comments]

Proposal: The Sia Foundation

Vision Statement

A common sentiment is brewing online; a shared desire for the internet that might have been. After decades of corporate encroachment, you don't need to be a power user to realize that something has gone very wrong.
In the early days of the internet, the future was bright. In that future, when you sent an instant message, it traveled directly to the recipient. When you needed to pay a friend, you announced a transfer of value to their public key. When an app was missing a feature you wanted, you opened up the source code and implemented it. When you took a picture on your phone, it was immediately encrypted and backed up to storage that you controlled. In that future, people would laugh at the idea of having to authenticate themselves to some corporation before doing these things.
What did we get instead? Rather than a network of human-sized communities, we have a handful of enormous commons, each controlled by a faceless corporate entity. Hey user, want to send a message? You can, but we'll store a copy of it indefinitely, unencrypted, for our preference-learning algorithms to pore over; how else could we slap targeted ads on every piece of content you see? Want to pay a friend? You can—in our Monopoly money. Want a new feature? Submit a request to our Support Center and we'll totally maybe think about it. Want to backup a photo? You can—inside our walled garden, which only we (and the NSA, of course) can access. Just be careful what you share, because merely locking you out of your account and deleting all your data is far from the worst thing we could do.
You rationalize this: "MEGACORP would never do such a thing; it would be bad for business." But we all know, at some level, that this state of affairs, this inversion of power, is not merely "unfortunate" or "suboptimal" – No. It is degrading. Even if MEGACORP were purely benevolent, it is degrading that we must ask its permission to talk to our friends; that we must rely on it to safeguard our treasured memories; that our digital lives are completely beholden to those who seek only to extract value from us.
At the root of this issue is the centralization of data. MEGACORP can surveil you—because your emails and video chats flow through their servers. And MEGACORP can control you—because they hold your data hostage. But centralization is a solution to a technical problem: How can we make the user's data accessible from anywhere in the world, on any device? For a long time, no alternative solution to this problem was forthcoming.
Today, thanks to a confluence of established techniques and recent innovations, we have solved the accessibility problem without resorting to centralization. Hashing, encryption, and erasure encoding got us most of the way, but one barrier remained: incentives. How do you incentivize an anonymous stranger to store your data? Earlier protocols like BitTorrent worked around this limitation by relying on altruism, tit-for-tat requirements, or "points" – in other words, nothing you could pay your electric bill with. Finally, in 2009, a solution appeared: Bitcoin. Not long after, Sia was born.
Cryptography has unleashed the latent power of the internet by enabling interactions between mutually-distrustful parties. Sia harnesses this power to turn the cloud storage market into a proper marketplace, where buyers and sellers can transact directly, with no intermediaries, anywhere in the world. No more silos or walled gardens: your data is encrypted, so it can't be spied on, and it's stored on many servers, so no single entity can hold it hostage. Thanks to projects like Sia, the internet is being re-decentralized.
Sia began its life as a startup, which means it has always been subjected to two competing forces: the ideals of its founders, and the profit motive inherent to all businesses. Its founders have taken great pains to never compromise on the former, but this often threatened the company's financial viability. With the establishment of the Sia Foundation, this tension is resolved. The Foundation, freed of the obligation to generate profit, is a pure embodiment of the ideals from which Sia originally sprung.
The goals and responsibilities of the Foundation are numerous: to maintain core Sia protocols and consensus code; to support developers building on top of Sia and its protocols; to promote Sia and facilitate partnerships in other spheres and communities; to ensure that users can easily acquire and safely store siacoins; to develop network scalability solutions; to implement hardforks and lead the community through them; and much more. In a broader sense, its mission is to commoditize data storage, making it cheap, ubiquitous, and accessible to all, without compromising privacy or performance.
Sia is a perfect example of how we can achieve better living through cryptography. We now begin a new chapter in Sia's history. May our stewardship lead it into a bright future.
 

Overview

Today, we are proposing the creation of the Sia Foundation: a new non-profit entity that builds and supports distributed cloud storage infrastructure, with a specific focus on the Sia storage platform. What follows is an informal overview of the Sia Foundation, covering two major topics: how the Foundation will be funded, and what its funds will be used for.

Organizational Structure

The Sia Foundation will be structured as a non-profit entity incorporated in the United States, likely a 501(c)(3) organization or similar. The actions of the Foundation will be constrained by its charter, which formalizes the specific obligations and overall mission outlined in this document. The charter will be updated on an annual basis to reflect the current goals of the Sia community.
The organization will be operated by a board of directors, initially comprising Luke Champine as President and Eddie Wang as Chairman. Luke Champine will be leaving his position at Nebulous to work at the Foundation full-time, and will seek to divest his shares of Nebulous stock along with other potential conflicts of interest. Neither Luke nor Eddie personally own any siafunds or significant quantities of siacoin.

Funding

The primary source of funding for the Foundation will come from a new block subsidy. Following a hardfork, 30 KS per block will be allocated to the "Foundation Fund," continuing in perpetuity. The existing 30 KS per block miner reward is not affected. Additionally, one year's worth of block subsidies (approximately 1.57 GS) will be allocated to the Fund immediately upon activation of the hardfork.
As detailed below, the Foundation will provably burn any coins that it cannot meaningfully spend. As such, the 30 KS subsidy should be viewed as a maximum. This allows the Foundation to grow alongside Sia without requiring additional hardforks.
The Foundation will not be funded to any degree by the possession or sale of siafunds. Siafunds were originally introduced as a means of incentivizing growth, and we still believe in their effectiveness: a siafund holder wants to increase the amount of storage on Sia as much as possible. While the Foundation obviously wants Sia to succeed, its driving force should be its charter. Deriving significant revenue from siafunds would jeopardize the Foundation's impartiality and focus. Ultimately, we want the Foundation to act in the best interests of Sia, not in growing its own budget.

Responsibilities

The Foundation inherits a great number of responsibilities from Nebulous. Each quarter, the Foundation will publish the progress it has made over the past quarter, and list the responsibilities it intends to prioritize over the coming quarter. This will be accompanied by a financial report, detailing each area of expenditure over the past quarter, and forecasting expenditures for the coming quarter. Below, we summarize some of the myriad responsibilities towards which the Foundation is expected to allocate its resources.

Maintain and enhance core Sia software

Arguably, this is the most important responsibility of the Foundation. At the heart of Sia is its consensus algorithm: regardless of other differences, all Sia software must agree upon the content and rules of the blockchain. It is therefore crucial that the algorithm be stewarded by an entity that is accountable to the community, transparent in its decision-making, and has no profit motive or other conflicts of interest.
Accordingly, Sia’s consensus functionality will no longer be directly maintained by Nebulous. Instead, the Foundation will release and maintain an implementation of a "minimal Sia full node," comprising the Sia consensus algorithm and P2P networking code. The source code will be available in a public repository, and signed binaries will be published for each release.
Other parties may use this code to provide alternative full node software. For example, Nebulous may extend the minimal full node with wallet, renter, and host functionality. The source code of any such implementation may be submitted to the Foundation for review. If the code passes review, the Foundation will provide "endorsement signatures" for the commit hash used and for binaries compiled internally by the Foundation. Specifically, these signatures assert that the Foundation believes the software contains no consensus-breaking changes or other modifications to imported Foundation code. Endorsement signatures and Foundation-compiled binaries may be displayed and distributed by the receiving party, along with an appropriate disclaimer.
A minimal full node is not terribly useful on its own; the wallet, renter, host, and other extensions are what make Sia a proper developer platform. Currently, the only implementations of these extensions are maintained by Nebulous. The Foundation will contract Nebulous to ensure that these extensions continue to receive updates and enhancements. Later on, the Foundation intends to develop its own implementations of these extensions and others. As with the minimal node software, these extensions will be open source and available in public repositories for use by any Sia node software.
With the consensus code now managed by the Foundation, the task of implementing and orchestrating hardforks becomes its responsibility as well. When the Foundation determines that a hardfork is necessary (whether through internal discussion or via community petition), a formal proposal will be drafted and submitted for public review, during which arguments for and against the proposal may be submitted to a public repository. During this time, the hardfork code will be implemented, either by Foundation employees or by external contributors working closely with the Foundation. Once the implementation is finished, final arguments will be heard. The Foundation board will then vote whether to accept or reject the proposal, and announce their decision along with appropriate justification. Assuming the proposal was accepted, the Foundation will announce the block height at which the hardfork will activate, and will subsequently release source code and signed binaries that incorporate the hardfork code.
Regardless of the Foundation's decision, it is the community that ultimately determines whether a fork is accepted or rejected – nothing can change that. Foundation node software will never automatically update, so all forks must be explicitly adopted by users. Furthermore, the Foundation will provide replay and wipeout protection for its hard forks, protecting other chains from unintended or malicious reorgs. Similarly, the Foundation will ensure that any file contracts formed prior to a fork activation will continue to be honored on both chains until they expire.
Finally, the Foundation also intends to pursue scalability solutions for the Sia blockchain. In particular, work has already begun on an implementation of Utreexo, which will greatly reduce the space requirements of fully-validating nodes (allowing a full node to be run on a smartphone) while increasing throughput and decreasing initial sync time. A hardfork implementing Utreexo will be submitted to the community as per the process detailed above.
As this is the most important responsibility of the Foundation, it will receive a significant portion of the Foundation’s budget, primarily in the form of developer salaries and contracting agreements.

Support community services

We intend to allocate 25% of the Foundation Fund towards the community. This allocation will be held and disbursed in the form of siacoins, and will pay for grants, bounties, hackathons, and other community-driven endeavours.
Any community-run service, such as a Skynet portal, explorer or web wallet, may apply to have its costs covered by the Foundation. Upon approval, the Foundation will reimburse expenses incurred by the service, subject to the exact terms agreed to. The intent of these grants is not to provide a source of income, but rather to make such services "break even" for their operators, so that members of the community can enrich the Sia ecosystem without worrying about the impact on their own finances.

Ensure easy acquisition and storage of siacoins

Most users will acquire their siacoins via an exchange. The Foundation will provide support to Sia-compatible exchanges, and pursue relevant integrations at its discretion, such as Coinbase's new Rosetta standard. The Foundation may also release DEX software that enables trading cryptocurrencies without the need for a third party. (The Foundation itself will never operate as a money transmitter.)
Increasingly, users are storing their cryptocurrency on hardware wallets. The Foundation will maintain the existing Ledger Nano S integration, and pursue further integrations at its discretion.
Of course, all hardware wallets must be paired with software running on a computer or smartphone, so the Foundation will also develop and/or maintain client-side wallet software, including both full-node wallets and "lite" wallets. Community-operated wallet services, i.e. web wallets, may be funded via grants.
Like core software maintenance, this responsibility will be funded in the form of developer salaries and contracting agreements.

Protect the ecosystem

When it comes to cryptocurrency security, patching software vulnerabilities is table stakes; there are significant legal and social threats that we must be mindful of as well. As such, the Foundation will earmark a portion of its fund to defend the community from legal action. The Foundation will also safeguard the network from 51% attacks and other threats to network security by implementing softforks and/or hardforks where necessary.
The Foundation also intends to assist in the development of a new FOSS software license, and to solicit legal memos on various Sia-related matters, such as hosting in the United States and the EU.
In a broader sense, the establishment of the Foundation makes the ecosystem more robust by transferring core development to a more neutral entity. Thanks to its funding structure, the Foundation will be immune to various forms of pressure that for-profit companies are susceptible to.

Drive adoption of Sia

Although the overriding goal of the Foundation is to make Sia the best platform it can be, all that work will be in vain if no one uses the platform. There are a number of ways the Foundation can promote Sia and get it into the hands of potential users and developers.
In-person conferences are understandably far less popular now, but the Foundation can sponsor and/or participate in virtual conferences. (In-person conferences may be held in the future, permitting circumstances.) Similarly, the Foundation will provide prizes for hackathons, which may be organized by community members, Nebulous, or the Foundation itself. Lastly, partnerships with other companies in the cryptocurrency space—or the cloud storage space—are a great way to increase awareness of Sia. To handle these responsibilities, one of the early priorities of the Foundation will be to hire a marketing director.

Fund Management

The Foundation Fund will be controlled by a multisig address. Each member of the Foundation's board will control one of the signing keys, with the signature threshold to be determined once the final composition of the board is known. (This threshold may also be increased or decreased if the number of board members changes.) Additionally, one timelocked signing key will be controlled by David Vorick. This key will act as a “dead man’s switch,” to be used in the event of an emergency that prevents Foundation board members from reaching the signature threshold. The timelock ensures that this key cannot be used unless the Foundation fails to sign a transaction for several months.
On the 1st of each month, the Foundation will use its keys to transfer all siacoins in the Fund to two new addresses. The first address will be controlled by a high-security hot wallet, and will receive approximately one month's worth of Foundation expenditures. The second address, receiving the remaining siacoins, will be a modified version of the source address: specifically, it will increase the timelock on David Vorick's signing key by one month. Any other changes to the set of signing keys, such as the arrival or departure of board members, will be incorporated into this address as well.
The Foundation Fund is allocated in SC, but many of the Foundation's expenditures must be paid in USD or other fiat currency. Accordingly, the Foundation will convert, at its discretion, a portion of its monthly withdrawals to fiat currency. We expect this conversion to be primarily facilitated by private "OTC" sales to accredited investors. The Foundation currently has no plans to speculate in cryptocurrency or other assets.
Finally, it is important that the Foundation adds value to the Sia platform well in excess of the inflation introduced by the block subsidy. For this reason, the Foundation intends to provably burn, on a quarterly basis, any coins that it cannot allocate towards any justifiable expense. In other words, coins will be burned whenever doing so provides greater value to the platform than any other use. Furthermore, the Foundation will cap its SC treasury at 5% of the total supply, and will cap its USD treasury at 4 years’ worth of predicted expenses.
 
Addendum: Hardfork Timeline
We would like to see this proposal finalized and accepted by the community no later than September 30th. A new version of siad, implementing the hardfork, will be released no later than October 15th. The hardfork will activate at block 293220, which is expected to occur around 12pm EST on January 1st, 2021.
 
Addendum: Inflation specifics
The total supply of siacoins as of January 1st, 2021 will be approximately 45.243 GS. The initial subsidy of 1.57 GS thus increases the supply by 3.47%, and the total annual inflation in 2021 will be at most 10.4% (if zero coins are burned). In 2022, total annual inflation will be at most 6.28%, and will steadily decrease in subsequent years.
 

Conclusion

We see the establishment of the Foundation as an important step in the maturation of the Sia project. It provides the ecosystem with a sustainable source of funding that can be exclusively directed towards achieving Sia's ambitious goals. Compared to other projects with far deeper pockets, Sia has always punched above its weight; once we're on equal footing, there's no telling what we'll be able to achieve.
Nevertheless, we do not propose this change lightly, and have taken pains to ensure that the Foundation will act in accordance with the ideals that this community shares. It will operate transparently, keep inflation to a minimum, and respect the user's fundamental role in decentralized systems. We hope that everyone in the community will consider this proposal carefully, and look forward to a productive discussion.
submitted by lukechampine to siacoin [link] [comments]

/r/Monero Weekly Discussion – October 10, 2020 - Use this thread for general chatter, basic questions, and if you're new to Monero

Index

  1. General questions
  2. Wallet: CLI & GUI
  3. Wallet: Ledger
  4. Nodes

1. General questions

Where can I download the Monero wallet?

There are multiple Monero wallets for a wide range of devices at your disposal. Check the table below for details and download links. Attention: for extra security make sure to calculate and compare the checksum of your downloaded files when possible.
Please note the following usage of the labels:
⚠️ - Relatively new and/or beta. Use wallet with caution.
☢️ - Closed source.

Desktop wallets

Wallet Device Description Download link
"Official" GUI / CLI Windows, macOS, Linux Default implementation maintained by the core team. Use this wallet to run a full node and obtain maximum privacy. Integrates with hardware wallets. Current version: 0.16.0.3 / 0.16.0.3. GetMonero.org
MyMonero Windows, macOS, Linux Lightweight wallet -- you don't need to download the blockchain and run a node. MyMonero was developed with the assistance of the core team. It also has web-based and iOS versions. MyMonero.com
Exodus Windows, macOS, Linux ⚠️ / Multi-asset wallet. Exodus.io
ZelCore Windows, macOS, Linux ⚠️ / Multi-asset wallet. It also has Android and iOS versions. Zeltrez.io
Guarda Windows, macOS, Linux ⚠️ ☢️ / Multi-asset wallet. Guarda.co

Mobile wallets

Wallet Device Description Download link
Monerujo Android Integrates with Ledger (hardware wallet). Website: https://www.monerujo.io/. Google Play / F-Droid / GitHub
MyMonero iOS Website: https://mymonero.com/ App Store
Cake Wallet iOS Website: https://cakewallet.io/ App Store
X Wallet iOS Website: https://xwallet.tech/ App Store
Edge Wallet Android / iOS Multi-asset wallet. Website: https://edge.app/ Google Play / App Store
ZelCore Android / iOS ⚠️ / Multi-asset wallet. Website: https://zelcore.io/ Google Play / App Store
Coinomi Android / iOS ⚠️ ☢️ / Multi-asset wallet. Website: https://www.coinomi.com/ Google Play / App Store
Moxi / Guarda Android / iOS ⚠️ ☢️ / Multi-asset wallet. Website: https://guarda.co/ Google Play / App Store
Exa Wallet Android / iOS ⚠️ Website: https://exan.tech/ Google Play / App Store
Wookey Wallet Android / iOS ⚠️ Website: https://wallet.wookey.io/ Google Play / F-Droid / App Store
Exodus Android / iOS ⚠️ / Multi-asset wallet. Website: https://www.exodus.io/monero/) Google Play / [App Store](https://apps.apple.com/app/exodus-crypto-wallet/id1414384820

Web-based wallets

Wallet Description Link
MyMonero Web version of the MyMonero wallet. Web
Guarda Multi-asset wallet. Web

How long does it take for my balance to unlock?

Your balance is unlocked after 10 confirmations (which means 10 mined blocks). A block is mined approximately every two minutes on the Monero network, so that would be around 20 minutes.

How can I prove that I sent a payment?

The fastest and most direct way is by using the ExploreMonero blockchain explorer. You will need to recover the transaction key from your wallet (complete guide for GUI / CLI).

How do I buy Monero (XMR) with Bitcoin (BTC)?

There are dozens of exchanges that trade Monero against Bitcoin and other cryptocurrencies. Check out the list on CoinMarketCap and choose the option that suits you best.

How do I buy Monero (XMR) with fiat?

How can I quickly exchange my Monero (XMR) for Bitcoin (BTC)?

There are multiple ways to exchange your Monero for Bitcoin, but first of all, I'd like to remind you that if you really want to do your part for Monero, one of the simplest ways is to get in touch with your merchant/service provider and request for it to accept Monero directly as payment. Ask the service provider to visit the official website and our communication channels if he or she needs help with system integration.
That being said, the community has been recommending two services in particular, XMR.TO and MorphToken. These services are only recommendations and are operated by entities outside the control of the Monero Project. Be diligent.

How do I mine Monero? And other mining questions.

The correct place to ask questions and discuss the Monero mining scene is in the dedicated subreddit MoneroMining. That being said, you can find a list of pools and available mining software in the GetMonero.org website.

2. Wallet: CLI & GUI

Why I can't see my balance? Where is my XMR?

Before any action there are two things to check:
  1. Are you using the latest available version of the wallet? A new version is released roughly every 6 months, so make sure you're using the current release (compare the release on GetMonero.org with your wallet's version on Settings, under Debug info).
  2. Is your wallet fully synchronized? If it isn't, wait the sync to complete.
Because Monero is different from Bitcoin, wallet synchronization is not instant. The software needs to synchronize the blockchain and use your private keys to identify your transactions. Check in the lower left corner (GUI) if the wallet is synchronized.
You can't send transactions and your balance might be wrong or unavailable if the wallet is not synced with the network. So please wait.
If this is not a sufficient answer for your case and you're looking for more information, please see this answer on StackExchange.

How do I upgrade my wallet to the newest version?

This question is beautifully answered on StackExchange.

Why does it take so long to sync the wallet [for the first time]?

You have decided to use Monero's wallet and run a local node. Congratulations! You have chosen the safest and most secure option for your privacy, but unfortunately this has an initial cost. The first reason for the slowness is that you will need to download the entire blockchain, which is considerably heavy (+70 GB) and constantly growing. There are technologies being implemented in Monero to slow this growth, however it is inevitable to make this initial download to run a full node. Consider syncing to a device that has an SSD instead of an HDD, as this greatly impacts the speed of synchronization.
Now that the blockchain is on your computer, the next time you run the wallet you only need to download new blocks, which should take seconds or minutes (depending on how often you use the wallet).

I don't want to download the blockchain, how can I skip that?

The way to skip downloading the blockchain is connecting your wallet to a public remote node. You can follow this guide on how to set it up. You can find a list of public remote nodes on MoneroWorld.
Be advised that when using a public remote node you lose some of your privacy. A public remote node is able to identify your IP and opens up a range for certain attacks that further diminish your privacy. A remote node can't see your balance and it can't spend your XMR.

How do I restore my wallet from the mnemonic seed or from the keys?

To restore your wallet with the 25 word mnemonic seed, please see this guide.
To restore your wallet with your keys, please see this guide.

3. Wallet: Ledger

How do I generate a Ledger Monero Wallet with the GUI or CLI?

This question is beautifully answered on StackExchange. Check this page for the GUI instructions, and this page for the CLI instructions.

4. Nodes

How can my local node become a public remote node?

If you want to support other Monero users by making your node public, you can follow the instructions on MoneroWorld, under the section "How To Include Your Node On Moneroworld".

How can I connect my node via Tor?

This question is beautifully answered on StackExchange.
submitted by AutoModerator to Monero [link] [comments]

Are all bitcoin wallets stored somewhere on a server?

Please excuse my ignorance I’m very new to this, but I understand you can recover wallets anywhere with your seed. Such as if I have an electrum wallet and I buy a ledger nano s, I can put my seed into my ledger and then now my electrum wallet is on my ledger.
Wouldn’t all wallets details have to be stored somewhere online to be able to access them like this?
submitted by Dtoks to BitcoinBeginners [link] [comments]

Bitcoin Newcomers FAQ - Please read!

Welcome to the /Bitcoin Sticky FAQ

You've probably been hearing a lot about Bitcoin recently and are wondering what's the big deal? Most of your questions should be answered by the resources below but if you have additional questions feel free to ask them in the comments.
It all started with the release of the release of Satoshi Nakamoto's whitepaper however that will probably go over the head of most readers so we recommend the following videos for a good starting point for understanding how bitcoin works and a little about its long term potential:
Some other great resources include Lopp.net, the Princeton crypto series and James D'Angelo's Bitcoin 101 Blackboard series.
Some excellent writing on Bitcoin's value proposition and future can be found at the Satoshi Nakamoto Institute.
Some Bitcoin statistics can be found here and here. Developer resources can be found here. Peer-reviewed research papers can be found here.
Potential upcoming protocol improvements and scaling resources here and here.
The number of times Bitcoin was declared dead by the media can be found here (LOL!)

Key properties of Bitcoin

Where can I buy bitcoins?

Bitcoin.org and BuyBitcoinWorldwide.com are helpful sites for beginners. You can buy or sell any amount of bitcoin (even just a few dollars worth) and there are several easy methods to purchase bitcoin with cash, credit card or bank transfer. Some of the more popular resources are below, also check out the bitcoinity exchange resources for a larger list of options for purchases.
Here is a listing of local ATMs. If you would like your paycheck automatically converted to bitcoin use Bitwage.
Note: Bitcoins are valued at whatever market price people are willing to pay for them in balancing act of supply vs demand. Unlike traditional markets, bitcoin markets operate 24 hours per day, 365 days per year. Preev is a useful site that that shows how much various denominations of bitcoin are worth in different currencies. Alternatively you can just Google "1 bitcoin in (your local currency)".

Securing your bitcoins

With bitcoin you can "Be your own bank" and personally secure your bitcoins OR you can use third party companies aka "Bitcoin banks" which will hold the bitcoins for you.
Note: For increased security, use Two Factor Authentication (2FA) everywhere it is offered, including email!
2FA requires a second confirmation code to access your account making it much harder for thieves to gain access. Google Authenticator and Authy are the two most popular 2FA services, download links are below. Make sure you create backups of your 2FA codes.
Google Auth Authy OTP Auth
Android Android N/A
iOS iOS iOS

Watch out for scams

As mentioned above, Bitcoin is decentralized, which by definition means there is no official website or Twitter handle or spokesperson or CEO. However, all money attracts thieves. This combination unfortunately results in scammers running official sounding names or pretending to be an authority on YouTube or social media. Many scammers throughout the years have claimed to be the inventor of Bitcoin. Websites like bitcoin(dot)com and the btc subreddit are active scams. Almost all altcoins (shitcoins) are marketed heavily with big promises but are really just designed to separate you from your bitcoin. So be careful: any resource, including all linked in this document, may in the future turn evil. Don't trust, verify. Also as they say in our community "Not your keys, not your coins".

Where can I spend bitcoins?

Check out spendabit or bitcoin directory for millions of merchant options. Also you can spend bitcoin anywhere visa is accepted with bitcoin debit cards such as the CashApp card. Some other useful site are listed below.
Store Product
Gyft Gift cards for hundreds of retailers including Amazon, Target, Walmart, Starbucks, Whole Foods, CVS, Lowes, Home Depot, iTunes, Best Buy, Sears, Kohls, eBay, GameStop, etc.
Spendabit, Overstock and The Bitcoin Directory Retail shopping with millions of results
ShakePay Generate one time use Visa cards in seconds
NewEgg and Dell For all your electronics needs
Bitwa.la, Coinbills, Piixpay, Bitbill.eu, Bylls, Coins.ph, Bitrefill, LivingRoomofSatoshi, Coinsfer, and more Bill payment
Menufy, Takeaway and Thuisbezorgd NL Takeout delivered to your door
Expedia, Cheapair, Destinia, Abitsky, SkyTours, the Travel category on Gyft and 9flats For when you need to get away
Cryptostorm, Mullvad, and PIA VPN services
Namecheap, Porkbun Domain name registration
Stampnik Discounted USPS Priority, Express, First-Class mail postage
Coinmap and AirBitz are helpful to find local businesses accepting bitcoins. A good resource for UK residents is at wheretospendbitcoins.co.uk.
There are also lots of charities which accept bitcoin donations.

Merchant Resources

There are several benefits to accepting bitcoin as a payment option if you are a merchant;
If you are interested in accepting bitcoin as a payment method, there are several options available;

Can I mine bitcoin?

Mining bitcoins can be a fun learning experience, but be aware that you will most likely operate at a loss. Newcomers are often advised to stay away from mining unless they are only interested in it as a hobby similar to folding at home. If you want to learn more about mining you can read more here. Still have mining questions? The crew at /BitcoinMining would be happy to help you out.
If you want to contribute to the bitcoin network by hosting the blockchain and propagating transactions you can run a full node using this setup guide. If you would prefer to keep it simple there are several good options. You can view the global node distribution here.

Earning bitcoins

Just like any other form of money, you can also earn bitcoins by being paid to do a job.
Site Description
WorkingForBitcoins, Bitwage, Cryptogrind, Coinality, Bitgigs, /Jobs4Bitcoins, BitforTip, Rein Project Freelancing
Lolli Earn bitcoin when you shop online!
OpenBazaar, Purse.io, Bitify, /Bitmarket, 21 Market Marketplaces
/GirlsGoneBitcoin NSFW Adult services
A-ads, Coinzilla.io Advertising
You can also earn bitcoins by participating as a market maker on JoinMarket by allowing users to perform CoinJoin transactions with your bitcoins for a small fee (requires you to already have some bitcoins.

Bitcoin-Related Projects

The following is a short list of ongoing projects that might be worth taking a look at if you are interested in current development in the bitcoin space.
Project Description
Lightning Network Second layer scaling
Blockstream, Rootstock and Drivechain Sidechains
Hivemind and Augur Prediction markets
Tierion and Factom Records & Titles on the blockchain
BitMarkets, DropZone, Beaver and Open Bazaar Decentralized markets
JoinMarket and Wasabi Wallet CoinJoin implementation
Coinffeine and Bisq Decentralized bitcoin exchanges
Keybase Identity & Reputation management
Abra Global P2P money transmitter network
Bitcore Open source Bitcoin javascript library

Bitcoin Units

One Bitcoin is quite large (hundreds of £/$/€) so people often deal in smaller units. The most common subunits are listed below:
Unit Symbol Value Info
bitcoin BTC 1 bitcoin one bitcoin is equal to 100 million satoshis
millibitcoin mBTC 1,000 per bitcoin used as default unit in recent Electrum wallet releases
bit bit 1,000,000 per bitcoin colloquial "slang" term for microbitcoin (μBTC)
satoshi sat 100,000,000 per bitcoin smallest unit in bitcoin, named after the inventor
For example, assuming an arbitrary exchange rate of $10000 for one Bitcoin, a $10 meal would equal:
For more information check out the Bitcoin units wiki.
Still have questions? Feel free to ask in the comments below or stick around for our weekly Mentor Monday thread. If you decide to post a question in /Bitcoin, please use the search bar to see if it has been answered before, and remember to follow the community rules outlined on the sidebar to receive a better response. The mods are busy helping manage our community so please do not message them unless you notice problems with the functionality of the subreddit.
Note: This is a community created FAQ. If you notice anything missing from the FAQ or that requires clarification you can edit it here and it will be included in the next revision pending approval.
Welcome to the Bitcoin community and the new decentralized economy!
submitted by BitcoinFan7 to Bitcoin [link] [comments]

/r/Monero Weekly Discussion – October 03, 2020 - Use this thread for general chatter, basic questions, and if you're new to Monero

Index

  1. General questions
  2. Wallet: CLI & GUI
  3. Wallet: Ledger
  4. Nodes

1. General questions

Where can I download the Monero wallet?

There are multiple Monero wallets for a wide range of devices at your disposal. Check the table below for details and download links. Attention: for extra security make sure to calculate and compare the checksum of your downloaded files when possible.
Please note the following usage of the labels:
⚠️ - Relatively new and/or beta. Use wallet with caution.
☢️ - Closed source.

Desktop wallets

Wallet Device Description Download link
"Official" GUI / CLI Windows, macOS, Linux Default implementation maintained by the core team. Use this wallet to run a full node and obtain maximum privacy. Integrates with hardware wallets. Current version: 0.16.0.3 / 0.16.0.3. GetMonero.org
MyMonero Windows, macOS, Linux Lightweight wallet -- you don't need to download the blockchain and run a node. MyMonero was developed with the assistance of the core team. It also has web-based and iOS versions. MyMonero.com
Exodus Windows, macOS, Linux ⚠️ / Multi-asset wallet. Exodus.io
ZelCore Windows, macOS, Linux ⚠️ / Multi-asset wallet. It also has Android and iOS versions. Zeltrez.io
Guarda Windows, macOS, Linux ⚠️ ☢️ / Multi-asset wallet. Guarda.co

Mobile wallets

Wallet Device Description Download link
Monerujo Android Integrates with Ledger (hardware wallet). Website: https://www.monerujo.io/. Google Play / F-Droid / GitHub
MyMonero iOS Website: https://mymonero.com/ App Store
Cake Wallet iOS Website: https://cakewallet.io/ App Store
X Wallet iOS Website: https://xwallet.tech/ App Store
Edge Wallet Android / iOS Multi-asset wallet. Website: https://edge.app/ Google Play / App Store
ZelCore Android / iOS ⚠️ / Multi-asset wallet. Website: https://zelcore.io/ Google Play / App Store
Coinomi Android / iOS ⚠️ ☢️ / Multi-asset wallet. Website: https://www.coinomi.com/ Google Play / App Store
Moxi / Guarda Android / iOS ⚠️ ☢️ / Multi-asset wallet. Website: https://guarda.co/ Google Play / App Store
Exa Wallet Android / iOS ⚠️ Website: https://exan.tech/ Google Play / App Store
Wookey Wallet Android / iOS ⚠️ Website: https://wallet.wookey.io/ Google Play / F-Droid / App Store
Exodus Android / iOS ⚠️ / Multi-asset wallet. Website: https://www.exodus.io/monero/) Google Play / [App Store](https://apps.apple.com/app/exodus-crypto-wallet/id1414384820

Web-based wallets

Wallet Description Link
MyMonero Web version of the MyMonero wallet. Web
Guarda Multi-asset wallet. Web

How long does it take for my balance to unlock?

Your balance is unlocked after 10 confirmations (which means 10 mined blocks). A block is mined approximately every two minutes on the Monero network, so that would be around 20 minutes.

How can I prove that I sent a payment?

The fastest and most direct way is by using the ExploreMonero blockchain explorer. You will need to recover the transaction key from your wallet (complete guide for GUI / CLI).

How do I buy Monero (XMR) with Bitcoin (BTC)?

There are dozens of exchanges that trade Monero against Bitcoin and other cryptocurrencies. Check out the list on CoinMarketCap and choose the option that suits you best.

How do I buy Monero (XMR) with fiat?

How can I quickly exchange my Monero (XMR) for Bitcoin (BTC)?

There are multiple ways to exchange your Monero for Bitcoin, but first of all, I'd like to remind you that if you really want to do your part for Monero, one of the simplest ways is to get in touch with your merchant/service provider and request for it to accept Monero directly as payment. Ask the service provider to visit the official website and our communication channels if he or she needs help with system integration.
That being said, the community has been recommending two services in particular, XMR.TO and MorphToken. These services are only recommendations and are operated by entities outside the control of the Monero Project. Be diligent.

How do I mine Monero? And other mining questions.

The correct place to ask questions and discuss the Monero mining scene is in the dedicated subreddit MoneroMining. That being said, you can find a list of pools and available mining software in the GetMonero.org website.

2. Wallet: CLI & GUI

Why I can't see my balance? Where is my XMR?

Before any action there are two things to check:
  1. Are you using the latest available version of the wallet? A new version is released roughly every 6 months, so make sure you're using the current release (compare the release on GetMonero.org with your wallet's version on Settings, under Debug info).
  2. Is your wallet fully synchronized? If it isn't, wait the sync to complete.
Because Monero is different from Bitcoin, wallet synchronization is not instant. The software needs to synchronize the blockchain and use your private keys to identify your transactions. Check in the lower left corner (GUI) if the wallet is synchronized.
You can't send transactions and your balance might be wrong or unavailable if the wallet is not synced with the network. So please wait.
If this is not a sufficient answer for your case and you're looking for more information, please see this answer on StackExchange.

How do I upgrade my wallet to the newest version?

This question is beautifully answered on StackExchange.

Why does it take so long to sync the wallet [for the first time]?

You have decided to use Monero's wallet and run a local node. Congratulations! You have chosen the safest and most secure option for your privacy, but unfortunately this has an initial cost. The first reason for the slowness is that you will need to download the entire blockchain, which is considerably heavy (+70 GB) and constantly growing. There are technologies being implemented in Monero to slow this growth, however it is inevitable to make this initial download to run a full node. Consider syncing to a device that has an SSD instead of an HDD, as this greatly impacts the speed of synchronization.
Now that the blockchain is on your computer, the next time you run the wallet you only need to download new blocks, which should take seconds or minutes (depending on how often you use the wallet).

I don't want to download the blockchain, how can I skip that?

The way to skip downloading the blockchain is connecting your wallet to a public remote node. You can follow this guide on how to set it up. You can find a list of public remote nodes on MoneroWorld.
Be advised that when using a public remote node you lose some of your privacy. A public remote node is able to identify your IP and opens up a range for certain attacks that further diminish your privacy. A remote node can't see your balance and it can't spend your XMR.

How do I restore my wallet from the mnemonic seed or from the keys?

To restore your wallet with the 25 word mnemonic seed, please see this guide.
To restore your wallet with your keys, please see this guide.

3. Wallet: Ledger

How do I generate a Ledger Monero Wallet with the GUI or CLI?

This question is beautifully answered on StackExchange. Check this page for the GUI instructions, and this page for the CLI instructions.

4. Nodes

How can my local node become a public remote node?

If you want to support other Monero users by making your node public, you can follow the instructions on MoneroWorld, under the section "How To Include Your Node On Moneroworld".

How can I connect my node via Tor?

This question is beautifully answered on StackExchange.
submitted by AutoModerator to Monero [link] [comments]

Avoid blockchain.com wallet at all costs

Seriously. Their web app and mobile app generated a receiving bitcoin address that wasn’t even connected to my account. Get sent a decently sized payment and it just disappears into the void. Can’t recover it at all. Checked the blockchain explorer, electrum, etc. it’s been 3 weeks, support closed my ticket with no help, and the BTC is sitting in the address still unspent. Piece of shit company
submitted by avva to Bitcoin [link] [comments]

Private by design decentralized p2p marketplace

Hi fellas, this is my first ever post on privacy.
I recently wrote about the existence of an open source DLT-based decentralized marketplace with a mission to enable free and private trade of goods and services. The marketplace description was posted on another subreddit but I think it's worth posting the description here too. Tbh I cant think of anything that qualifies more as "The intersection of technology, privacy, and freedom in a digital world"
I hope my own description of the marketplace and its technology bellow will fuel your interest to read more about it. My even bigger hope is that some of you will decide to become first-hand beta testers as soon as the upcoming v3.0 of the marketplace hits the testnet (eta: a few weeks).
You can also use the existing version (currently 2.3.5) of the marketplace to buy or sell products on the publicly accessible single community market there (or just play with it).
The marketplace:
It is called the Particl Marketplace and its ground breaking V3.0 is set to be released after 3 years of hard development work. The V3.0 will be the first version aimed at a wider public (normies and not only tech geeks). It will allow anyone to create easily decentralized personal storefronts or community markets or simply buy/sell goods on existing markets. The user-created markets/storefronts on the marketplace can be public if the access key is publicly announced on the Particl network or absolutely invisible to anyone that doesn’t know the access key (held by the creator). This is an intentional privacy feature and simply put, if you dont have the market access key (essentially a decryption key) there is absolutely no way to see/detect that some market exists.
The marketplace is private by design and decentralized, with no middlemen or intermediaries whatsoever. The trades are protected by a two-way automated escrow via smart-contracts that de-incentivize and penalize dishonest behavior on both sides. In particular, the buy-flow forces the buyer to deposit 1x item value + payment and the seller 1x item value (+ sends item) into a common smart contract. If the buyer receives the product/service and its all good, then he unlocks the escrow so both can get their 1x item value deposits back and the seller receive his payment.
The marketplace takes no sales commissions from the storefronts/markets and charges only a tiny listing fee (<0.01$) to prevent product listings spamming. All the marketplace generated fees go to the staking nodes that provide the hardware infrastructure for the p2p network to operate. The network nodes can be public or you can run them as Tor hidden services.
The technology:
The Particl Marketplace is crypto-agnostic and currently supports payments in BTC, PART, ZCoin (XMR, DAI, NIX, USDC, USDT are next in the pipeline and many more to come). It uses as a settlement layer its native coin PART and own blockchain, which is an up-to-date Bitcoin codebase with added privacy features like CT, RingCT (up to 32 mixins), Stealth addresses, etc. These privacy features are used in combination to keep the financial data, like escrows and transactions, private and most importantly un-linkable to the actual market buys/sells.
For the users and markets related data exchange like posted listings, buy/sell flows, encrypted user communication, built-in cryptocurrency exchange, etc, the marketplace uses a DSN, currently its a custom Bitmessage variant called SMSG, which allows metadata stripped encrypted p2p data exchange (no sender, no receiver)
Last but not least the marketplace desktop app (Particl Desktop) has a built-in option for using the Tor network via proxy.
The important people:
The cypherpunks behind Particl Marketplace have been OGs freedom advocates and pioneers in the privacy DLT field. For example, they were the first ever to implement features like RingCT, Bulletproofs, PoS, cold staking, etc on a Bitcoin codebase. Their privacy features implementations have been audited successfully by several respectable academics and security R&D providers, like QuarksLab.
The team behind the project has been so far focused on building without any marketing/awareness efforts and thus have remained intentionally in the shadows. The latter is planned to change with the v3.0 release. One of the steps towards that will be the initiation of several long-planned awareness campaigns, like the Vendor Onboarding and Outreach Program, the Particl Academy (an easy to understand and learn about the technology portal) and many more.
Me:
I am a passionate freedom and privacy advocate that discovered the project 1.5 year ago and since then has become a member of their small but like-minded community ([email protected]/discord).
My personal belief is that the Particl Marketplace provides a game-changing/breaking usecase to the world. At the minimum, due to the open source nature of the project, it will be a proof of concept that is bound to shift the global eCommerce paradigm.
submitted by Bakounin to privacy [link] [comments]

Help recovering from old wallet.dat for an old friend.


Hey all,
I've been in the Bitcoin space since early 2012.
I have a situation that I would love to get some assistance with, I will explain the situation momentarily. Please do not message me and ask me for the wallet.dat file it's not going to happen.
TL;DR
I have an old wallet.dat file from late 2012 or early 2013 from a coin I sold to a friend. Tried to recover the coins in 2018 and failed, later found out that someone had access to the computer and could have easily stole them. Would the current Bitcoin Core be able to read an old wallet.dat file, and is there any way to easily view the balance of a 2012 wallet.dat file without having to load the entire blockchain?
In the early days of Bitcoin as many of you OG's know, the only option to securely store your coins was to use the default Bitcoin wallet in a wallet.dat file. A friend of mine was really wanted to invest in Bitcoin but didn't know how, so I sold one to him because I didn't want him to get screwed. I installed Bitcoin QT on their home laptop, had him write down the password on a piece of paper and had him put a backup of the wallet.dat file onto a USB.
Fast forward to when the price went to $20k plus, he calls me up super excited and said he wanted to sell his coin because he could use the money and I encouraged it because from my prior experience I knew the momentum was unsustainable and I had sold a few coins of my own.
Anyway, I go over to his house and we huddle around his computer. He tells me that he upgraded the hard drive in his computer and gave me his old one and I went back to my house to get an external hard drive reader. I came back, booted up his old drive and remembered that we would have to let it sync up in order to get the coins out, and on his internet that wasn't going to happen anytime soon. He gave me the hard drive and I went home and left on Bitcoin QT overnight and in the morning I was shocked to see that there were no transactions on the wallet. Quick note, he had the wallet password in a file on his documents titled "Bitcoin Wallet Password.txt". smh.
I started to panic, and I realized how bad this looked on me. I called him and told him that there were no coins on there and asked if he had his USB stick and he told me he had lost it years ago. I frantically looked through all of my old wallet files to find any transaction that could link to his address, to show that his coins were still in there. After a while I realized I had sent the coins from the now defunct btc-e.com, and had no way to check up on the coins.
I did everything in my ability to try to recover lost data from the hard drive to no avail. I asked him if anyone else has had access to his computer, and then asked him how he replaced his hard drive because I know him well enough to know he wouldn't pull apart a laptop to replace the hard drive. He told me he took it to a shop to have it replaced a few months earlier. I suspect that I'm either trying to view the wallet incorrectly or whoever replaced his hard drive snooped on his hard drive, stole the coins and replaced the wallet.dat file and generated a new one. I have to admit, I was relieved a little bit to have an explanation to coins not being there but I could imagine he thinks I may have had something to do with it. I made a few more attempts over the years whenever I was reminded of the situation to no avail.
We kind of fell out after that and haven't spoken in a while. Recently, I saw a post on his Facebook that his wife is pregnant they are having a baby, and that's why I'm here. I would love nothing more than to be able to message him and let him know that I have 11 grand waiting for him, because I'm certain the money would mean the world to him during such a stressful time.
Any help or insights would be incredibly helpful and appreciated.
submitted by Good-Exercise to Bitcoin [link] [comments]

/r/Monero Weekly Discussion – September 19, 2020 - Use this thread for general chatter, basic questions, and if you're new to Monero

Index

  1. General questions
  2. Wallet: CLI & GUI
  3. Wallet: Ledger
  4. Nodes

1. General questions

Where can I download the Monero wallet?

There are multiple Monero wallets for a wide range of devices at your disposal. Check the table below for details and download links. Attention: for extra security make sure to calculate and compare the checksum of your downloaded files when possible.
Please note the following usage of the labels:
⚠️ - Relatively new and/or beta. Use wallet with caution.
☢️ - Closed source.

Desktop wallets

Wallet Device Description Download link
"Official" GUI / CLI Windows, macOS, Linux Default implementation maintained by the core team. Use this wallet to run a full node and obtain maximum privacy. Integrates with hardware wallets. Current version: 0.16.0.3 / 0.16.0.3. GetMonero.org
MyMonero Windows, macOS, Linux Lightweight wallet -- you don't need to download the blockchain and run a node. MyMonero was developed with the assistance of the core team. It also has web-based and iOS versions. MyMonero.com
Exodus Windows, macOS, Linux ⚠️ / Multi-asset wallet. Exodus.io
ZelCore Windows, macOS, Linux ⚠️ / Multi-asset wallet. It also has Android and iOS versions. Zeltrez.io
Guarda Windows, macOS, Linux ⚠️ ☢️ / Multi-asset wallet. Guarda.co

Mobile wallets

Wallet Device Description Download link
Monerujo Android Integrates with Ledger (hardware wallet). Website: https://www.monerujo.io/. Google Play / F-Droid / GitHub
MyMonero iOS Website: https://mymonero.com/ App Store
Cake Wallet iOS Website: https://cakewallet.io/ App Store
X Wallet iOS Website: https://xwallet.tech/ App Store
Edge Wallet Android / iOS Multi-asset wallet. Website: https://edge.app/ Google Play / App Store
ZelCore Android / iOS ⚠️ / Multi-asset wallet. Website: https://zelcore.io/ Google Play / App Store
Coinomi Android / iOS ⚠️ ☢️ / Multi-asset wallet. Website: https://www.coinomi.com/ Google Play / App Store
Moxi / Guarda Android / iOS ⚠️ ☢️ / Multi-asset wallet. Website: https://guarda.co/ Google Play / App Store
Exa Wallet Android / iOS ⚠️ Website: https://exan.tech/ Google Play / App Store
Wookey Wallet Android / iOS ⚠️ Website: https://wallet.wookey.io/ Google Play / F-Droid / App Store
Exodus Android / iOS ⚠️ / Multi-asset wallet. Website: https://www.exodus.io/monero/) Google Play / [App Store](https://apps.apple.com/app/exodus-crypto-wallet/id1414384820

Web-based wallets

Wallet Description Link
MyMonero Web version of the MyMonero wallet. Web
Guarda Multi-asset wallet. Web

How long does it take for my balance to unlock?

Your balance is unlocked after 10 confirmations (which means 10 mined blocks). A block is mined approximately every two minutes on the Monero network, so that would be around 20 minutes.

How can I prove that I sent a payment?

The fastest and most direct way is by using the ExploreMonero blockchain explorer. You will need to recover the transaction key from your wallet (complete guide for GUI / CLI).

How do I buy Monero (XMR) with Bitcoin (BTC)?

There are dozens of exchanges that trade Monero against Bitcoin and other cryptocurrencies. Check out the list on CoinMarketCap and choose the option that suits you best.

How do I buy Monero (XMR) with fiat?

How can I quickly exchange my Monero (XMR) for Bitcoin (BTC)?

There are multiple ways to exchange your Monero for Bitcoin, but first of all, I'd like to remind you that if you really want to do your part for Monero, one of the simplest ways is to get in touch with your merchant/service provider and request for it to accept Monero directly as payment. Ask the service provider to visit the official website and our communication channels if he or she needs help with system integration.
That being said, the community has been recommending two services in particular, XMR.TO and MorphToken. These services are only recommendations and are operated by entities outside the control of the Monero Project. Be diligent.

How do I mine Monero? And other mining questions.

The correct place to ask questions and discuss the Monero mining scene is in the dedicated subreddit MoneroMining. That being said, you can find a list of pools and available mining software in the GetMonero.org website.

2. Wallet: CLI & GUI

Why I can't see my balance? Where is my XMR?

Before any action there are two things to check:
  1. Are you using the latest available version of the wallet? A new version is released roughly every 6 months, so make sure you're using the current release (compare the release on GetMonero.org with your wallet's version on Settings, under Debug info).
  2. Is your wallet fully synchronized? If it isn't, wait the sync to complete.
Because Monero is different from Bitcoin, wallet synchronization is not instant. The software needs to synchronize the blockchain and use your private keys to identify your transactions. Check in the lower left corner (GUI) if the wallet is synchronized.
You can't send transactions and your balance might be wrong or unavailable if the wallet is not synced with the network. So please wait.
If this is not a sufficient answer for your case and you're looking for more information, please see this answer on StackExchange.

How do I upgrade my wallet to the newest version?

This question is beautifully answered on StackExchange.

Why does it take so long to sync the wallet [for the first time]?

You have decided to use Monero's wallet and run a local node. Congratulations! You have chosen the safest and most secure option for your privacy, but unfortunately this has an initial cost. The first reason for the slowness is that you will need to download the entire blockchain, which is considerably heavy (+70 GB) and constantly growing. There are technologies being implemented in Monero to slow this growth, however it is inevitable to make this initial download to run a full node. Consider syncing to a device that has an SSD instead of an HDD, as this greatly impacts the speed of synchronization.
Now that the blockchain is on your computer, the next time you run the wallet you only need to download new blocks, which should take seconds or minutes (depending on how often you use the wallet).

I don't want to download the blockchain, how can I skip that?

The way to skip downloading the blockchain is connecting your wallet to a public remote node. You can follow this guide on how to set it up. You can find a list of public remote nodes on MoneroWorld.
Be advised that when using a public remote node you lose some of your privacy. A public remote node is able to identify your IP and opens up a range for certain attacks that further diminish your privacy. A remote node can't see your balance and it can't spend your XMR.

How do I restore my wallet from the mnemonic seed or from the keys?

To restore your wallet with the 25 word mnemonic seed, please see this guide.
To restore your wallet with your keys, please see this guide.

3. Wallet: Ledger

How do I generate a Ledger Monero Wallet with the GUI or CLI?

This question is beautifully answered on StackExchange. Check this page for the GUI instructions, and this page for the CLI instructions.

4. Nodes

How can my local node become a public remote node?

If you want to support other Monero users by making your node public, you can follow the instructions on MoneroWorld, under the section "How To Include Your Node On Moneroworld".

How can I connect my node via Tor?

This question is beautifully answered on StackExchange.
submitted by AutoModerator to Monero [link] [comments]

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