Block top - The block range and duration of your blockchain (in blocks) on creation of the current block Nonce - The transaction quantity for your from address (bear in mind this begins at 0 so a nonce of 100 would really be the 101st transaction submitted by this account) https://socialevity.com/story22571903/blockchain-explorer-fundamentals-explained-https-md-chaosdorf-de-xdhzafcotoa3ipvrxixxya