Block height - The block variety and duration in the blockchain (in blocks) on generation of the current 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://bookmarkstown.com/story20467367/the-best-side-of-explorer-blockchain-usdt-https-md-swk-web-com-onnbpblstmy8giqdrhnkga