Block top - The block number and length from the blockchain (in blocks) on development of the current block Nonce - The transaction range with the from address (Remember this starts at 0 so a nonce of 100 would really be the 101st transaction submitted by this account) Not simply https://bookmarketmaven.com/story21461059/explorer-blockchain-base-an-overview-https-canvas-instructure-com-eportfolios-4028322-entries-14252553