Block top - The block selection and length from the blockchain (in blocks) on creation of the current block Nonce - The transaction range with the from address (Remember this starts at 0 so a nonce of 100 would really be the 101st transaction submitted by this account) Contract generation https://bookmarkingbay.com/story20207568/the-smart-trick-of-blockchain-explorer-app-that-nobody-is-discussing-https-www-webwiki-de-cryptoexplorerhub-com