user59757: How many miners should validate a block before it gets added to the blockchain?
Or does every miner add the blocks it receives to its local blockchain? 

user14325: Miners don't really actively validate blocks during the mining process. Miners find valid blocks and broadcast them to the network. It is up to the full-validating nodes on the network as to whether a block is accepted or rejected.

59757: <p>How many miners should validate a block before it gets added to the blockchain?
Or does every miner add the blocks it receives to its local blockchain? </p>
 14325: <p>Miners don't really actively validate blocks during the mining process. Miners find valid blocks and broadcast them to the network. It is up to the full-validating nodes on the network as to whether a block is accepted or rejected.</p>
