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://icelisting.com/story21603129/blockchain-explorer-usdt-trc20-fundamentals-explained-https-zenwriting-net-lampwhorl7-from-information-into-insights-leveraging-distributed-ledger-analyzers-in