On Ethereum, proof of stake (PoS) and account model are now used. After executing each block, the block producer will calculate a hash value (state commitment) of the blockchain state, and the validator will recalculate this value to facilitate verification of whether the block is reliable.
The overall process has always been like this:
1️⃣ Pick some transactions and sort them, which is called a block.

2️⃣ Calculate some specific things (such as PoW problems or state commitments) and add them to the block.

3️⃣ Broadcast this block and additional data to other nodes on the network.

4️⃣Other nodes recalculate these data and compare them with those sent by the block producer. If they are consistent, they accept the block.