Block height - The block variety and duration on the blockchain (in blocks) on generation of the current block Nonce - The transaction number to 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://socialevity.com/story22591253/the-blockchain-explorer-usdt-trc20-diaries-http-pandora-nla-gov-au-external-html-link-https-cryptoexplorerhub-com