Block top - The block selection and duration of the blockchain (in blocks) on creation of the current block Nonce - The transaction quantity 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://7bookmarks.com/story20213292/blockchain-explorer-tron-secrets-https-www-udrpsearch-com-user-lampwhorl2