Block height - The block amount 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 actually be the 101st transaction submitted by this account) https://thebookpage.com/story5802972/the-definitive-guide-to-explorer-blockchain-ethereum-http-www-stes-tyc-edu-tw-xoops-modules-profile-userinfo-php-uid-3693980