Glossary
Block Reward
The compensation paid to whoever produces a block — a mix of newly issued tokens (subsidy) and transaction fees collected from the block's transactions.
Block reward = subsidy + fees. The subsidy is freshly minted by the protocol; the fees come from the transactions the block includes (minus any base fee that EIP-1559-style chains burn).
On Bitcoin, the subsidy halves every 210,000 blocks until it reaches zero somewhere after 2140, at which point fees alone will pay miners. On Ethereum PoS, both proposers and attesters earn rewards, funded by issuance plus the tips users add on top of the base fee.