Block top - The block selection and length from the blockchain (in blocks) on creation of the current block Nonce - The transaction variety for that 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://bookmarkcolumn.com/story20325068/the-best-side-of-explorer-blockchain-usdt-https-list-ly-churchkjeldsen86wpibju