Bitcoin Halving
Web3 / crypto history
Bitcoin halving is a pre-programmed event that occurs approximately every four years, or after every 210,000 blocks are mined, which automatically reduces the block reward that miners receive by 50%. This mechanism is built into Bitcoin's code and serves as a deflationary feature that gradually decreases the rate at which new bitcoins enter circulation. The halving continues until all 21 million bitcoins have been mined, expected around the year 2140. This process is fundamental to Bitcoin's monetary policy, ensuring predictable supply growth and scarcity over time. Halvings have historically been significant events in Bitcoin's price history and mining economics, as they reduce miner profitability and alter the incentive structure of the network. Example: The most recent Bitcoin halving occurred in April 2024, reducing the block reward from 6.25 BTC to 3.125 BTC per block. Previous halvings happened in November 2012 (from 50 BTC to 25 BTC), July 2016 (from 25 BTC to 12.5 BTC), and May 2020 (from 12.5 BTC to 6.25 BTC), each marking significant milestones in Bitcoin's evolution. Why it matters for crypto history: Bitcoin halving events are crucial milestones that demonstrate how Bitcoin's fixed monetary supply is engineered into its core protocol. Understanding halvings is essential for grasping Bitcoin's scarcity model and its positioning as "digital gold" with built-in deflationary mechanics that distinguish it from fiat currencies and other cryptocurrencies.
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