The Block Reward is the incentive provided to a miner or validator for successfully adding a new block to a blockchain. Typically, it consists of a certain number of newly minted coins and the transaction fees from the transactions included in the block.
Block Rewards are a critical component of many crypto-economic models, providing a way to issue new coins into circulation and incentivizing participants to secure the network. Over time, the block reward may decrease due to a process called halving, which reduces the rate at which new coins are created, influencing the cryptocurrency's supply and potentially its value.