Ledgers, signatures and consensus, and when they actually help agents.
A step-by-step explanation of Bitcoin's underlying mechanics, from communal ledgers and digital signatures to proof-of-work and decentralized consensus. Explores how cryptographic hash functions, mining, and blockchain architecture create a trustless system for digital currency without central authority.
An interactive visual walkthrough of blockchain fundamentals: SHA-256 hashing, block structure, mining process, chain immutability, and distributed consensus. Demonstrates how blocks link together, why tampering breaks the chain, and how coinbase transactions enable digital currency without central authority.
Demonstrates how public/private key cryptography secures blockchain transactions. Shows how private keys sign transactions, public keys verify signatures, and why miners can't forge transactions even when re-mining blocks. Explains how addresses are created without central authority.
