Block top - The block variety and duration with the blockchain (in blocks) on generation of the current block Nonce - The transaction number with the from address (bear in mind this commences at 0 so a nonce of 100 would basically be the 101st transaction submitted by this account) https://pageoftoday.com/story6070817/facts-about-blockchain-explorer-confirmed-transactions-revealed-https-md-chaosdorf-de-xdhzafcotoa3ipvrxixxya