Cryptocoins


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):
http://fc16.ifca.ai/bitcoin/papers/CDE+16.pdf


Format of a transaction:
https://en.bitcoin.it/wiki/Transaction

Bitcoin protocol:
https://en.bitcoin.it/wiki/Protocol_documentation
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

https://blockstream.info



IRC Channels


#bitcoin, #bitcoin-core-dev and #bitcoin-wizards at irc.freenode.net


Channel logs:

https://botbot.me/freenode/bitcoin-core-dev/

https://botbot.me/freenode/bitcoin-wizards/

List of IRC channels (Bitcoin Wiki)



Fee estimation


https://estimatefee.com/

https://bitcoinfees.21.co/



Other


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:
https://blockstream.com/sidechains.pdf


Software related to Bitcoin:
https://en.bitcoin.it/wiki/Software


Resources for Lightning Network developers:
http://dev.lightning.community/resources/



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