Block top - The block number and length in the blockchain (in blocks) on creation of the present block Nonce - The transaction number for the from address (bear in mind this starts at 0 so a nonce of 100 would really be the 101st transaction submitted by this account) https://bookmarksknot.com/story22223904/details-fiction-and-explorer-blockchain-ethereum-https-postheaven-net-stickscreen2-from-bytes-to-insights-a-journey-with-copyright-adventurers