Mining
The process of using computational power to verify transactions and add new blocks to the blockchain.
The block reward is how new bitcoin enters circulation. It started at 50 BTC per block in 2009 and is cut in half at every halving, gradually releasing all 21 million coins over time while giving miners an incentive to secure the network.
After the 2024 halving, the block reward dropped from 6.25 BTC to 3.125 BTC per block.