Block top - The block quantity and duration on the blockchain (in blocks) on generation of the current block Nonce - The transaction amount 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://socialbuzztoday.com/story5689901/the-smart-trick-of-explorer-blockchain-ethereum-that-nobody-is-discussing-https-articlescad-com-the-remarkable-adventurers-in-the-cyber-frontier-grasping-distributed-ledger-instruments-325096-html