{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"Does the upgrade process of smart contracts in blockchain require a specific proposal submission?","a":"The upgrade process of smart contracts in blockchain usually does not require specific proposal submissions. However, this depends on the specific blockchain platform and the implementation of the smart contract. On some platforms, such as Ethereum, the upgrade of smart contracts can be achieved by submitting transaction requests. The transaction request includes the new version of the smart contract code and deployment information. After network confirmation, the new smart contract will be deployed and put into use.↵↵In other blockchain platforms, such as Hyperledger, the upgrade of smart contracts may require specific proposal submissions, which are reviewed and approved by the platform's administrative body. These proposals usually include changes to the smart contract code and deployment information. Once the proposals are approved, the upgraded smart  contracts are deployed and become effective."}]}],"pr":"8a1766432753da6001045e52de25fc62df1fca7e26072ab8ded801baa6ee8bd9"}