Bitcoin’s 21 Million Cap Explains the Asset Behind the Institutional Bets

What happened: The Block's educational primer revisits Bitcoin's basic architecture: a decentralized public ledger, Proof of Work security and a protocol-enforced supply ceiling of 21 million coins. Mining rewards halve approximately every 210,000 blocks, or roughly every four years, progressively reducing new issuance. This is an evergreen explanation, rather than a newly announced protocol change or a breaking market event.

Why it matters: The primer provides context for the institutional activity elsewhere in this digest: Bitcoin's issuance rules describe the underlying asset, while ETF disclosures describe how financial institutions obtain exposure to it. The 21 million ceiling establishes a supply constraint, but it cannot establish demand, justify a particular market price or explain a daily move by itself. Reading the supply mechanism alongside actual holdings is more informative than treating scarcity as a complete investment thesis, particularly when the available disclosures reflect an earlier reporting date.

Source: The Block Learn