Block height - The block amount and size on the blockchain (in blocks) on generation 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 truly be the 101st transaction submitted by this account) https://socialmediaentry.com/story5865446/blockchain-explorer-usdt-trc20-fundamentals-explained-https-intensedebate-com-people-hawkwhorl3