Block top - The block selection and length from the blockchain (in blocks) on creation of the current block Nonce - The transaction number with the from address (Remember this starts off at 0 so a nonce of 100 would really be the 101st transaction submitted by this account) Agreement https://bookmarkgenius.com/story20100402/facts-about-tron-blockchain-explorer-revealed-https-www-hulkshare-com-circledrop4