Block top - The block number and length in the blockchain (in blocks) on development of the current block Nonce - The transaction range 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://monobookmarks.com/story20314566/5-tips-about-blockchain-explorer-you-can-use-today-https-postheaven-net-stickscreen2-from-bytes-to-insights-a-journey-with-copyright-adventurers