Block top - The block quantity and length in the blockchain (in blocks) on development of the present block Nonce - The transaction range with 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://bookmarksystem.com/story20489917/the-ultimate-guide-to-eth-blockchain-explorer-https-canvas-instructure-com-eportfolios-4028322-entries-14252553