Block top - The block number and length in the blockchain (in blocks) on development of the current block Nonce - The transaction variety with the 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://bookmarkvids.com/story22344223/the-definitive-guide-to-explorer-blockchain-ethereum-https-www-giveawayoftheday-com-forums-profile-1172807