Block top - The block number and size with the blockchain (in blocks) on generation of the present block Nonce - The transaction selection 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://guidemysocial.com/story5708415/blockchain-explorer-tron-secrets-https-mathiasen-curry-2-federatedjournals-com-diving-deep-blockchain-explorers