Block top - The block number and length in 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 actually be the 101st transaction submitted by this account) https://bookmarkedblog.com/story21185726/blockchain-explorer-tron-secrets-https-blogfreely-net-pathfrog8-blockchain-trackers-a-gateway-to-comprehending-copyright-transactions