Bitcoin, with live chain data

45 lessons in 6 levels · about 3½ hours

Lessons

How Bitcoin works, in short lessons that answer real questions and end with a few questions to check yourself.

• 1.1What Bitcoin is
• ?236 questions, answered
• 1–6The course outline

As of block 973,577

Famous addresses

From the first blocks to exchange reserves and seized coins: what each one holds and what the chain shows.

• The Genesis address₿ 57.69
• The Counterparty burn address₿ 2,131.00
• Binance's largest reserve wallet₿ 248,597.59

Balance, history and value

satoshis.watch

Look up any Bitcoin address: its balance, transactions and historical market values in one readable report.

Or open a famous one: The Genesis address