Block top - The block quantity and length on the blockchain (in blocks) on development of the present block Nonce - The transaction selection for the from address (bear in mind this starts at 0 so a nonce of 100 would really be the a hundred and first transaction submitted https://bookmarkpressure.com/story20151097/blockchain-explorer-usdt-trc20-fundamentals-explained-https-md-chaosdorf-de-xdhzafcotoa3ipvrxixxya