The University of SydneyPage 26Constructing a block–Once a miner finds a matching nonce, miner immediately transmits the block to all its peers.–Each peer validates the block with a series of tests and propagate the block to the network.–Validating that the nonce is correct is easy.–Everyone can verify that someone lied about having solved the puzzle–Miners practically do not act dishonestly because,–If someone found that miner is lied, the block will be rejected, miner will not be rewarded and miner wasted time and electricity without compensation.