Block top - The block range and size of the blockchain (in blocks) on creation of the current block Nonce - The transaction number for your from address (Remember this starts at 0 so a nonce of one hundred would basically be the 101st transaction submitted by this account) Not https://directmysocial.com/story5334421/top-guidelines-of-explorer-blockchain-solana-https-rentry-co-4vomqtzo