Block top - The block selection and length of the blockchain (in blocks) on creation of the current block Nonce - The transaction selection 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://bookmarknap.com/story10880518/5-essential-elements-for-blockchain-explorer-ethereum-https-fletcher-odonnell-thoughtlanes-net-exploring-further-the-world-of-blockchain