Block height - The block quantity and length in the blockchain (in blocks) on development of the present block Nonce - The transaction selection with the from address (Remember this starts off at 0 so a nonce of 100 would actually be the 101st transaction submitted by this account) Contract https://digibookmarks.com/story20666621/blockchain-explorer-usdt-trc20-fundamentals-explained-https-doc-adminforge-de-xbqatr5jtxomaazj2qoagg