Block top - The block number and length from the blockchain (in blocks) on development of the current block Nonce - The transaction range with the from address (Remember this starts off at 0 so a nonce of a hundred would basically be the 101st transaction submitted by this account) https://businessbookmark.com/story5716078/explorer-blockchain-tron-an-overview-http-ezproxy-cityu-edu-hk-login-url-https-cryptoexplorerhub-com