
Bitcoin
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What is Bitcoin?
Bitcoin is the first and largest decentralized digital money network, launched in January 2009 by the pseudonymous Satoshi Nakamoto. Its maximum supply of 21 million units, programmed by protocol consensus and halved every four years, makes it the scarcest monetary asset known.
How it works
Bitcoin runs on a public blockchain validated through Proof of Work mining with the SHA-256 algorithm. Each block carries a verifiable energy cost that anchors the chain and removes the need to trust intermediaries. Consensus is distributed across thousands of nodes worldwide, with no central authority. Transactions are confirmed in roughly ten minutes, and the issuance of new BTC is cut in half every four years through the halving mechanism until the supply is exhausted around the year 2140.
Use cases
In 2026 Bitcoin has three main uses. As a digital store of value, it has been adopted by more than fifty publicly listed companies (Strategy, Twenty One Capital, Metaplanet, MARA) that accumulate it on their balance sheets as a hedge against currency debasement. As an institutional investment vehicle, the spot ETFs launched in the United States in January 2024 hold more than one million BTC in custody. As an international means of payment, the Lightning Network layer enables instant transactions at near-zero cost. El Salvador adopted BTC as legal tender in 2021.
Bitcoin on SatsIntel
Bitcoin is the underlying asset of the entire corporate treasury category that SatsIntel covers. The directory includes more than fifty publicly listed companies with BTC on their balance sheets, ranked by holdings and mNAV. The editorial pillars on Bitcoin treasuries, HODL stocks and mNAV explain how to value Bitcoin exposure through listed equity. There are three routes to direct exposure: spot BTC, regulated ETFs and treasury company shares; each with its own risk, custody and leverage profile.
Frequently asked questions
What is Bitcoin?
Bitcoin (BTC) is the first decentralized digital money network, launched in 2009 by the pseudonymous Satoshi Nakamoto. It runs on a public blockchain validated by Proof of Work mining, with no central authority, and a maximum supply fixed at 21 million units. It is the scarcest monetary asset known and the underlying asset of the entire corporate Bitcoin treasury category.
How many Bitcoin will there be in total?
The Bitcoin protocol caps the total supply at 21 million units, a figure set by consensus since its launch in 2009. As of May 2026 there are approximately 19.9 million BTC in circulation; the rest will be issued gradually until the year 2140 through the halving mechanism, which cuts the block reward in half every four years.
How do you buy Bitcoin?
Bitcoin can be acquired directly on centralized exchanges (Coinbase, Kraken, Binance), indirectly via exchange-listed spot ETFs (BlackRock's IBIT, Fidelity's FBTC), or through the listed equity of corporate treasuries such as Strategy (MSTR) or Metaplanet (3350.T). Each route involves a different profile of custody, regulatory risk and leveraged exposure to the underlying asset.
Is Bitcoin a good store of value?
The thesis for Bitcoin as a store of value rests on three verifiable pillars: programmed scarcity (21 million maximum), censorship resistance (no central authority that can confiscate) and integration into the institutional financial system (regulated spot ETFs, bank custodians). Its historical volatility is high, but the trajectory since 2009 shows sustained appreciation over horizons of four or more years, aligned with the halving cycle.
Also on SatsIntel
Linked intelligenceBitcoin Treasuries
Directory of listed companies with BTC on their balance sheet: Strategy, Metaplanet, Marathon and more. Ranked by reserves.
View section →Bitcoin ETFs
BlackRock iShares, Fidelity, ARK, Grayscale and the rest of the regulated spot ETFs. Net flows and AUM in real time.
View section →BTC-backed preferreds
STRK, STRF, STRC, STRD and SATA: perpetual preferreds issued by Bitcoin treasuries with a fixed dividend.
View section →Data via CoinGecko API · Revalidated every 60s · Historical chart in USD