Bitcoin (Wikipedia)

Bitcoin Core (Wikipedia)
Bitcoin Core official site
Bitcoin Core (Download)

Bitcoin-dev mailing list

Bitcoin Forum (Bitcointalk)
Bitcoin Forum (Bitcointalk) Development & Technical Discussion

Bitcoin at Reddit

Bitcoin Wiki

Bitcoin original paper from Satoshi Nakamoto:
Bitcoin: A Peer-to-Peer Electronic Cash System

Bitcoin transations are hashed in a Merkle tree:
Merkle tree - Wikipedia

Bitcoin scalability (Paper):

Format of a transaction:

Bitcoin protocol:
Bitcoin mining the hard way: the algorithms, protocols, and bytes
Bitcoins the hard way: Using the raw Bitcoin protocol

Secure you wallet

Proof of Work vs Proof of Stake

Nothing is Cheaper than Proof of Work

On Stake and Consensus (Andrew Poelstra)

Statistics and Block explorers

Statistics about Cryptocurrencies

Top 100 Richest Bitcoin Addresses and Bitcoin Distribution

IRC Channels

#bitcoin, #bitcoin-core-dev and #bitcoin-wizards at

Channel logs:

List of IRC channels (Bitcoin Wiki)

Fee estimation


How to run a Bitcoin node in Debian

How to encrypt and decrypt your Bitcoin wallet

How to build BitcoinCore from sources in Debian

Sidechains paper:

Software related to Bitcoin:

Resources for Lightning Network developers:

Bitcoin development

How Can I Contribute?

How to contribute code to Bitcoin Core

Bitcoin related repositories in Github

Bitcoin open issues

Bitcoin pull requests

Bitcoin-dev mailing list

Documentation for Bitcoin protocol