Block top - The block selection and duration with the blockchain (in blocks) on creation of the current block Nonce - The transaction quantity to the from address (Keep in mind this starts at 0 so a nonce of a hundred would actually be the 101st transaction submitted by this https://bookmarkpressure.com/story20191045/the-2-minute-rule-for-blockchain-explorer-solana-https-md-entropia-de-aifurowaq7oqbm16-zzrcw