Bitcoin

BTC

Bitcoin is the world's first decentralized cryptocurrency, created by Satoshi Nakamoto in 2009. Its core value lies in its scarcity — capped at 21 million coins — and its censorship resistance.

Key Facts

CreatorSatoshi Nakamoto (anonymous)

Launch DateJanuary 3, 2009

Max Supply21,000,000 BTC

Circulating Supply~19,700,000 BTC (94%)

ConsensusProof of Work (SHA-256)

Block Time~10 minutes

Halving CycleEvery 210,000 blocks (~4 years)

Last HalvingApril 2024 (reward: 3.125 BTC)

Next Halving~2028 (reward: 1.5625 BTC)

Layer 2Lightning Network (instant micropayments)