Block top - The block number and length in the blockchain (in blocks) on development of the current block Nonce - The transaction variety for that 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://royalbookmarking.com/story20223036/what-does-blockchain-explorer-usdt-mean-https-www-woorips-vic-edu-au-profile-jessenisrgibbons96537-profile