Fundamentals

Halving

A scheduled event that cuts a blockchain's block subsidy in half, reducing new coin issuance — Bitcoin halves every 210,000 blocks (~4 years).

Halvings enforce digital scarcity: Bitcoin's subsidy fell from 50 BTC in 2009 to 3.125 BTC after April 2024, and will drop to 1.5625 BTC around April 2028. Litecoin follows the same pattern on its own schedule (next: ~August 2027), and Bitcoin Cash halves within days of Bitcoin.

For miners a halving is an overnight 50% revenue cut on the subsidy side. Historically it squeezes out inefficient operators, accelerates hardware turnover, and shifts revenue weight toward transaction fees. Any hardware purchase should be modelled against the date of the next halving.

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