Block top - The block number and length with the blockchain (in blocks) on generation of the present block Nonce - The transaction number for the from address (bear in mind this begins at 0 so a nonce of one hundred would in fact be the a hundred and first https://icelisting.com/story21884443/explorer-blockchain-tron-an-overview-https-fletcher-odonnell-thoughtlanes-net-exploring-further-the-world-of-blockchain