Block height - The block amount and size on the blockchain (in blocks) on generation of the present block Nonce - The transaction selection with the from address (bear in mind this starts at 0 so a nonce of one hundred would really be the a hundred and first transaction https://directmysocial.com/story5248900/details-fiction-and-explorer-blockchain-ethereum-https-www-webwiki-co-uk-cryptoexplorerhub-com