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Glossary

Hard cap

1 min read

Bitcoin total supply will never exceed 21 million bitcoin or 2.1 quadrillion satoshis. The hard cap is what guarantees Bitcoin’s absolute scarcity and protects Bitcoin from the fate of many fiat currencies in the past and present—hyperinflation.

➤ Learn more about Bitcoin's scarcity.

Related Terms
Block subsidy
The block subsidy is the new bitcoin minted in each block and the largest part of the block reward. It is cut in half roughly every four years.
Learn more.
Inflation
Inflation is the general rise in prices and fall in a currency's value over time. Understanding it helps you make better spending and saving decisions.
Learn more.
Deflation
Deflation is a general decrease in the price of goods and services in an economy over time. This results in higher purchasing power for the relevant currency.
Learn more.
HODL
HODL is a Bitcoin-community adage born from a misspelling of 'hold.' It urges bitcoiners to stay calm and keep holding through Bitcoin's volatility.
Learn more.
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