Block height - The block amount and size on the blockchain (in blocks) on development of the present block Nonce - The transaction selection with the from address (bear in mind this starts at 0 so a nonce of 100 would really be the 101st transaction submitted by this account) https://enrollbookmarks.com/story20448369/what-does-blockchain-explorer-usdt-mean-https-notes-io-ww2s8