🚀 Crypto Encyclopedia

Bitcoin (BTC)

Bitcoin – Digital Gold

Bitcoin (₿) is the world's first decentralized cryptocurrency. Created in 2009 by the pseudonymous Satoshi Nakamoto, Bitcoin introduced the revolutionary concept of a peer-to-peer electronic cash system.

💡 Key Fact: Bitcoin has a maximum supply of 21 million coins. As of 2024, approximately 19.6 million BTC have been mined.

Current Price
$62,000+ USD
Market Cap: $1.2+ Trillion

How Bitcoin Works

Bitcoin operates on a blockchain – a distributed ledger maintained by a network of computers (nodes). Transactions are verified by miners through Proof-of-Work (PoW) consensus.

P2P Transactions occur directly between users
Secure Cryptography ensures transaction integrity
Decentralized No central authority controls Bitcoin
Limited Only 21 million BTC will ever exist

Bitcoin Halving

Bitcoin undergoes a "halving" every 210,000 blocks (~4 years), reducing the block reward by 50%. This event is a key feature of Bitcoin's deflationary monetary policy.

Halving Date	Block Reward (BTC)	Price Impact
2012	25 → 12.5	↑ 10,000%
2016	12.5 → 6.25	↑ 3,000%
2020	6.25 → 3.125	↑ 600%
2024	3.125 → 1.5625	Projected ↑

Bitcoin Adoption Timeline

2009: Bitcoin network launched
2010: First real-world transaction (2 pizzas for 10,000 BTC)
2013: Bitcoin reaches $1,000 for first time
2017: Bitcoin hits $20,000
2021: All-time high of $69,000
2024: Spot Bitcoin ETFs approved in the US

Interesting Facts

Bitcoin's creator, Satoshi Nakamoto, has never been identified.
About 1 million BTC are held by Satoshi's original wallets.
Bitcoin consumes ~120 TWh annually (comparable to Norway).
There are only 21 million BTC, making it truly scarce.

"Bitcoin is the most important invention since the internet." – Naval Ravikant Silicon Valley Investor