How Bitcoin Works
Transactions, blocks, mining, the UTXO model, and Lightning Network: how Bitcoin actually works under the hood, explained in plain terms.
Keys, signatures, and hashes: the primitives and what they guarantee.

Transactions, blocks, mining, the UTXO model, and Lightning Network: how Bitcoin actually works under the hood, explained in plain terms.

In the early '90s the Cypherpunks set out to defend digital privacy. Their encryption and their ideals shaped the world we live in.

Sign your Git commits with GPG to prove they are really yours. Without a signature, anyone can fake a commit using your email.

PGP signs, encrypts and decrypts text, email, files and whole partitions. What it is, how it works, and how to actually use it.

Bitcoin is called programmable money because Script lets you embed conditions into a transaction. How that scripting language works.