Block top - The block variety and size on the blockchain (in blocks) on generation of the present block Nonce - The transaction number for the from address (Remember this starts off at 0 so a nonce of a hundred would actually be the 101st transaction submitted by this account) https://opensocialfactory.com/story22952884/blockchain-explorer-tron-secrets-https-list-ly-churchkjeldsen86wpibju