Block top - The block number and length on the blockchain (in blocks) on development of the present block Nonce - The transaction range with the from address (Remember this starts off at 0 so a nonce of a hundred would actually be the 101st transaction submitted by this account) https://e-bookmarks.com/story6021307/the-smart-trick-of-blockchain-explorer-app-that-nobody-is-discussing-https-wikimapia-org-external-link-url-https-cryptoexplorerhub-com