Block top - The block number and length from the blockchain (in blocks) on development of the current block Nonce - The transaction range with the from address (Remember this starts at 0 so a nonce of 100 would really be the a hundred and first transaction submitted by this https://livebackpage.com/story6138621/detailed-notes-on-blockchain-explorer-unconfirmed-transaction-https-www-bitsdujour-com-profiles-iptrcw