{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What event triggers a blockchain upgrade?","a":"Scalability requirements: As the number of blockchain users increases, transaction volume and data storage pressures continue to rise, which may lead to network congestion. To increase throughput and reduce transaction fees, developers may need  to upgrade the blockchain."}]}],"pr":"d6e930f94f8e49914c8bdd602ff05574081185f1c892e5f4068deec4e779198c"}