Block top - The block number and length from the blockchain (in blocks) on development of the current block Nonce - The transaction variety to the from address (Keep in mind this commences at 0 so a nonce of 100 would really be the 101st transaction submitted by this account) https://sociallytraffic.com/story5326658/blockchain-explorer-usdt-trc20-fundamentals-explained-https-www-saludcapital-gov-co-sitios-vigilanciasaludpublica-lists-contactenos-dispform-aspx-id-2972663