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 (Remember this starts at 0 so a nonce of 100 would actually be the 101st transaction submitted by this account) Contract generation https://tinybookmarks.com/story20285824/the-smart-trick-of-blockchain-explorer-app-that-nobody-is-discussing-https-canvas-instructure-com-eportfolios-4028322-entries-14252553