Block top - The block number and length in the blockchain (in blocks) on development of the current block Nonce - The transaction number 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://socialbraintech.com/story5207211/facts-about-tron-blockchain-explorer-revealed-https-clancy-olesen-4-mdwrite-net-opening-the-record-your-resource-to-blockchain-investigation