Block top - The block number and length in the blockchain (in blocks) on development 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 basically be the one hundred and first transaction submitted https://ledbookmark.com/story6011176/what-does-blockchain-explorer-usdt-mean-https-www-webwiki-ch-cryptoexplorerhub-com