Imagine Bitcoin never had a halving schedule and miners always received 50 BTC per block through 2025. But with actual halvings, miners receive ~3.125 BTC per block. What core principle of Bitcoin's design does halving protect?

Halvings enforce Bitcoin's fixed security model while preserving the 21 million cap. This predictable supply reduction is crucial to scarcity.

Halving happens roughly every…

About every four years by block count.

Halving Events

6 min readarticleIncludes quiz · 2 questions

Every four years, Bitcoin undergoes a "halving" — the reward for mining new blocks is cut in half. Imagine if the world gold supply suddenly started growing at half the rate. The existing gold would become relatively more scarce. Now imagine this happening on a predictable schedule that everyone can see years in advance. That is the halving.

Every ~4 years, new Bitcoin issued per block is cut in half. This slows down new supply entering the market.

Simple definitions:

•Block reward: New BTC paid to miners for adding a block.
•Halving: Scheduled 50% cut to the block reward every 210,000 blocks.
•Issuance: The rate new coins are created.

Key Takeaway

The halving is not just a technical event — it is a supply shock. After each halving, new Bitcoin enters circulation at half the previous rate while demand continues growing. This is the engine that drives Bitcoin scarcity over time.

Test Your Knowledge

2 questions · Passing score: 75%

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