Block top - The block selection and length from 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 actually be the 101st transaction submitted by this account) https://meshbookmarks.com/story20294762/detailed-notes-on-blockchain-explorer-unconfirmed-transaction-https-www-footballzaa-com-out-php-url-https-cryptoexplorerhub-com