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Welcome to ChainWiki,
A community guide to all things blockchain.
A blockchain is a distributed ledger that contains an ordered account of transactions in records called blocks. Each block of transactions is timestamped and linked to the previous block (like a chain) using modern encryption techniques. Bitcoin and Ethereum are two examples of growing high-value blockchains.



What is Bitcoin?

Satoshi Nakamoto's Paper: "Bitcoin: A Peer-to-Peer Electronic Cash System"

What is Ethereum?

Buying, Selling and Trading on Exchanges

For US Buyers, the easiest method for purchasing Bitcoin, Ethereum or Litecoin, with a credit card or bank account, is to use ←{chainwiki refferal link}

Note: Bitcoin and other cryptocurrencies can be purchased in fractional units - for example if you want to buy $100 (USD) of Bitcoin (BTC), and the price of bitcoin is $5000 USD/BTC then you would purchase 0.02 BTC.
Cryptocurrency Prices and Supply
Cryptocurrency Terminology
Ethereum Glossary
Bitcoin Vocabulary
Everything you need to know ablout Bitcoin
US Cryptocurrency Taxes

Software to help you calculate capital gains/losses: ←{chainwiki refferal link}

Miners and Stakers


Wallets, Clients, and Other Software & Resources

Wallets serve as a storage mechanism for Cryptocurrency (Secure Private Key Management).

There are different types of wallet software available on various platforms [Desktop, Web, Mobile and Hardware Device Wallet].

Wallet software often provides additional features above and beyond tracking account balances and executing coin transfers, such as;

  • Support for multiple coins
  • Fee and Confirmation Time Estimation
  • Advanced transactions (Data)
  • Multi-signature support
Custodial wallet
A provider that has custody of users’ holdings by controlling their private key(s).
Self-hosted wallet
Individual controls their own private keys. [Note: Most cryptocurrency clients come with Wallet software to generate an account with private keys stored locally on your device.]

Hardware Wallet
Hardware device that stores private keys: ie. and
Paper Wallet (printable)
Brain Wallet
Multi-signature wallets
Is an address whose control is shared by multiple signatories such that a specified threshold of private keys be provided in order to access funds. (Such as 2 out of 3)
Cold Storage
A custodial wallet where the keys are kept offline.


Alternative cyrptocurrencies generally announce (ANN) their projects on > Alternate cryptocurrencies > Announcements (Altcoins)

Coinfund's list of notable projects : CoinFund Projects Watchlist

Name Sites(s) Launch Date Consensus Notable
Augur 2016 Prediction Market Token on Ethereum
Bitcoin 2009-01 POW First DLT to solve the Double Spend Problem
Cosmos In Development POS Tendermint Consensus Hub with Inter Block Chain communication Protocol (IBCP)
Dash Privacy based coin featuring instant transactions and governance mechanism
Dogecoin meme coin
Ethereum POW / Moving to Casper POS Ethereum Virtual Machine smart contract platform
Litecoin October 2011
Namecoin Decentralized DNS and Identity registration
NXT November 2013 POS Cryptocurrency, Payment Network w/ integrated Asset Exchange, messaging system and marketplace.
Steem Social Media Platform
Tezos Starting w/ POS Blockchain that is amendable via included governance mechanism
Zcash Privacy-centric w/ Zero Knowledge Proofs
Editors - TODO, FAQ, Help