Block top - The block number and length from the blockchain (in blocks) on creation of the current 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://bookmarkfame.com/story20075513/not-known-details-about-blockchain-explorer-usdt-trc20-https-www-hulkshare-com-circledrop4