Block top - The block number and length from the blockchain (in blocks) on creation of the current block Nonce - The transaction amount with the from address (Remember this starts off at 0 so a nonce of a hundred would really be the 101st transaction submitted by this account) https://bookmarkfame.com/story20374649/the-smart-trick-of-blockchain-explorer-app-that-nobody-is-discussing-https-wikimapia-org-external-link-url-https-cryptoexplorerhub-com