Block top - The block number and length from 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://bookmarkcitizen.com/story20826665/details-fiction-and-explorer-blockchain-ethereum-https-md-darmstadt-ccc-de-znwtrv3frkwon6rj4y8pua