Bitcoin's original whitepaper marked its 18th anniversary, commemorating a network that started with a single concept: enabling direct money transfers without intermediaries. The asset has since grown to a $1.55 trillion valuation, drawing investment from institutional investors, major corporations, and governments.
The Original Vision
On October 31, 2008, an entity using the name Satoshi Nakamoto published a nine-page paper titled Bitcoin: A Peer-to-Peer Electronic Cash System on a cryptography mailing list. The proposal outlined a method for transferring money directly between users online without requiring a bank to verify or record transactions.
The system introduced two key components: a public transaction record known as the blockchain, and a verification mechanism called proof of work. Miners use computing power to validate transactions and add new blocks, making it computationally difficult to alter the network's history.
Bitcoin officially launched on January 3, 2009, when Satoshi mined the first block. The network incorporated a fixed supply limit of 21 million BTC.
Supply Milestones
Bitcoin's supply follows a predetermined release schedule established at launch. Mining rewards began at 50 BTC per block and are halved every 210,000 blocks, approximately once every four years.
Following the April 2024 halving, miners now receive 3.125 BTC per block. On March 9, 2026, the network reached a milestone when the 20 millionth bitcoin was mined. With more than 95% of the maximum supply already in circulation, the remaining coins will be released gradually over the next century, with full supply completion expected around 2140.
Institutional Adoption Through ETFs
Bitcoin's accessibility expanded significantly with the launch of U.S. spot Bitcoin ETFs in January 2024, allowing traditional investors to gain exposure through standard brokerage accounts without managing private keys or using cryptocurrency exchanges.
As of October 31, 2026, U.S. spot Bitcoin ETFs held approximately 1.28 million BTC, representing about 6.36% of circulating supply. Combined net assets reached $102.97 billion, with cumulative net inflows exceeding $57 billion. BlackRock's iShares Bitcoin Trust (IBIT) led the group with approximately $66.312 billion in assets.
Corporate and Government Holdings
Companies have adopted Bitcoin as a corporate treasury asset. Strategy holds the largest corporate Bitcoin position with 848,517 BTC as of October 31, 2026, representing more than 4% of Bitcoin's maximum supply.
The U.S. government also entered the market in March 2025 when an executive order established a Strategic Bitcoin Reserve, initially funded with BTC seized through criminal and civil proceedings.
Price Evolution
Bitcoin's price history reflects its journey from emergence to mainstream adoption. The first published exchange rate appeared in October 2009 at approximately $0.000764. The asset crossed $1,000 in 2013 and approached $20,000 in December 2017.
Bitcoin reached approximately $69,000 in November 2021, then set a record of approximately $73,798 in March 2024. The rally continued into 2025, reaching an intraday high of $126,223 on October 6. By June 30, 2026, the price had fallen to approximately $58,586 before recovering to around $77,200 by October 31.
