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 (Remember this starts off at 0 so a nonce of a hundred would actually be the 101st transaction submitted by this account) https://socialwebleads.com/story6161413/not-known-details-about-blockchain-explorer-usdt-trc20-https-fletcher-odonnell-thoughtlanes-net-exploring-further-the-world-of-blockchain