Block top - The block number and length from the blockchain (in blocks) on creation of the present block Nonce - The transaction selection 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://bookmarks-hit.com/story22847960/the-greatest-guide-to-blockchain-explorer-unconfirmed-transaction-http-ezproxy-cityu-edu-hk-login-url-https-cryptoexplorerhub-com