Block top - The block number and length in the blockchain (in blocks) on development of the present block Nonce - The transaction selection for the from address (bear in mind this starts at 0 so a nonce of 100 would truly be the a hundred and first transaction submitted https://webookmarks.com/story5821320/5-essential-elements-for-blockchain-explorer-ethereum-https-www-blurb-com-user-optionname7