Block top - The block number 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 basically be the one hundred and first transaction submitted https://letsbookmarkit.com/story20188288/detailed-notes-on-blockchain-explorer-unconfirmed-transaction-https-500px-com-p-barrkijrooney