Block height - The block quantity and size in 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 101st transaction submitted by this account) https://socialistener.com/story5768317/blockchain-explorer-usdt-trc20-fundamentals-explained-https-mlx-su-paste-view-d02eef60