{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"In the Solana cluster, how far back in time do transactions need to use the blockhash?","a":"In the Solana cluster, transactions require the  use of blockhashes from approximately 144,000 previous blocks. This is because the Solana network employs the"}]}],"pr":"7733196e15d03d49ec86d0f37cc04138e9dcadf73c8246f9699367cac513f31b"}