Block height - The block quantity and size on the blockchain (in blocks) on development of the present block Nonce - The transaction range 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://thejillist.com/story10692252/blockchain-explorer-usdt-trc20-fundamentals-explained-https-hedgedoc-eclair-ec-lyon-fr-6mkao4fyqry-pm5xpak7hg