Block top - The block selection and duration of the blockchain (in blocks) on creation of the current block Nonce - The transaction variety for that from address (Remember this starts off at 0 so a nonce of a hundred would basically be the one hundred and first transaction submitted https://thebookmarklist.com/story20188169/5-simple-statements-about-blockchain-explorer-solana-explained-https-www-demilked-com-author-brokerwhorl5