Block top - The block amount and length in the blockchain (in blocks) on creation of the current block Nonce - The transaction amount for your from address (bear in mind this starts at 0 so a nonce of one hundred would actually be the a hundred and first transaction https://sparxsocial.com/story10758913/not-known-details-about-blockchain-explorer-usdt-trc20-https-forum-issabel-org-u-optionray7