Block height - The block amount and length in the blockchain (in blocks) on development of the present 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://bookmarkcitizen.com/story20804698/what-does-blockchain-explorer-usdt-mean-https-www-instapaper-com-p-16864836