Block top - The block number and length on the blockchain (in blocks) on creation of the current block Nonce - The transaction range for the from address (bear in mind this starts at 0 so a nonce of 100 would actually be the 101st transaction submitted by this account) https://adsbookmark.com/story20618448/facts-about-tron-blockchain-explorer-revealed-https-skitterphoto-com-photographers-1387379-jimenez-deleuran