Block top - The block number and size of your blockchain (in blocks) on generation of the present block Nonce - The transaction range for your from address (Keep in mind this starts at 0 so a nonce of 100 would basically be the 101st transaction submitted by this account) https://allbookmarking.com/story20324668/5-simple-statements-about-blockchain-explorer-solana-explained-https-www-lasallesancristobal-edu-mx-profile-hannabkzpaulsen19225-profile