Block top - The block variety and duration with the blockchain (in blocks) on generation of the present block Nonce - The transaction number for the from address (bear in mind this starts at 0 so a nonce of 100 would really be the 101st transaction submitted by this account) https://onelifesocial.com/story5987667/helping-the-others-realize-the-advantages-of-blockchain-explorer-one-https-md-chaosdorf-de-xdhzafcotoa3ipvrxixxya