Block top - The block variety and length in the blockchain (in blocks) on generation of the present block Nonce - The transaction number for the from address (Keep in mind this starts at 0 so a nonce of a hundred would actually be the a hundred and first transaction https://kbookmarking.com/story20668863/5-essential-elements-for-blockchain-explorer-ethereum-https-lamptie2-bravejournal-net-beyond-these-blocks-discovering-the-realm-of-distributed-ledger-explorers