Block top - The block number and length from the blockchain (in blocks) on development of the present block Nonce - The transaction range with the from address (bear in mind this starts at 0 so a nonce of 100 would truly be the a hundred and first transaction submitted https://articlescad.com/the-remarkable-adventurers-in-the-cyber-frontier-grasping-distributed-ledger-instruments-325096.html