Issuance of Ether and Block Rewards

Ethereum and Bitcoin have different issuance and block rewards. All bitcoins are issued through mining; the initial 72002454.768 ethers are not issued through mining, but through pre-sale and distribution by the official Ethereum team.

Ethereum does not have a block reward halving mechanism, but its block reward is not static. In October 2017 and March 2019, the block reward was adjusted twice. Ethereum is an inflation model, and the system does not set an upper limit on the amount of ether issued.

In the case of a temporary fork where blocks are mined at the same block height at the same time, the Ethereum system also gives a certain amount of ETH to the uncle block as a block reward.