Block top - The block number and duration with the blockchain (in blocks) on generation of the present block Nonce - The transaction number for 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://bookmarkextent.com/story22597396/5-essential-elements-for-blockchain-explorer-ethereum-https-www-hulkshare-com-circledrop4