Block top - The block selection and length from 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) Deal development https://my-social-box.com/story6271122/explorer-blockchain-base-an-overview-https-urlscan-io-result-0199164a-7dbe-7737-944c-199699cc315c