Block height - The block quantity 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://mysocialfeeder.com/story5176281/not-known-details-about-blockchain-explorer-usdt-trc20-https-diigo-com-010nvri