How are validator rewards calculated on Polygon network?

Validators on the Polygon network receive rewards for proposing checkpoints, signing checkpoints, and mining blocks. When a validator proposes a checkpoint, they receive a reward of which 10% is held by the validator and 90% is distributed among delegators. Additionally, each validator gets rewarded for signing checkpoints, and there are rewards for producing a block.

The numbers you see in the explorer display the validator reward for signing a particular checkpoint. When a validator proposes a checkpoint, the rewards shown in the explorer for that specific checkpoint include the increase. The remaining 90% of the rewards are then distributed to delegators.

Block mining rewards aren't accumulated in the owner's account; instead, they directly reflect in the signer's account. These are automatically transferred to the signer address without generating a transaction hash. You can see these rewards in the 'Produced Blocks' section for a signer address on platforms like Polygonscan.