Block top - The block number and length from the blockchain (in blocks) on creation of the present block Nonce - The transaction number for your 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://apollobookmarks.com/story20445632/facts-about-tron-blockchain-explorer-revealed-https-cuwip-ucsd-edu-members-georgeuncle0-activity-1839979