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 one hundred would essentially be the one hundred and first transaction https://mediasocially.com/story5535195/blockchain-explorer-usdt-trc20-fundamentals-explained-https-500px-com-p-barrkijrooney