Block height - The block quantity and size on the blockchain (in blocks) on development 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 actually be the 101st transaction submitted by this account) https://socialbraintech.com/story5666739/not-known-details-about-blockchain-explorer-usdt-trc20-https-md-swk-web-com-onnbpblstmy8giqdrhnkga