Block top - The block selection and length of the blockchain (in blocks) on creation of the current block Nonce - The transaction amount to the from address (Keep in mind this commences at 0 so a nonce of 100 would in fact be the a hundred and first transaction https://throbsocial.com/story22738627/the-smart-trick-of-blockchain-explorer-app-that-nobody-is-discussing-https-rentry-co-4vomqtzo