Block top - The block number and length in the blockchain (in blocks) on development of the present block Nonce - The transaction variety to 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://yesbookmarks.com/story20688709/what-does-blockchain-explorer-usdt-mean-https-www-saludcapital-gov-co-sitios-vigilanciasaludpublica-lists-contactenos-dispform-aspx-id-2972663