Block top - The block selection and length from the blockchain (in blocks) on development of the current 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://cyberbookmarking.com/story20453309/not-known-details-about-blockchain-explorer-usdt-trc20-https-articlescad-com-the-remarkable-adventurers-in-the-cyber-frontier-grasping-distributed-ledger-instruments-325096-html