{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"Please explain the transaction hash and the deployment of smart contracts on the blockchain.","a":"The transaction hash (Transaction Hash) is a unique identifier used to identify and verify transactions on a blockchain. It is generated by the party initiating the transaction when creating the transaction and is propagated and verified by the blockchain network. The transaction hash typically consists of a series of characters and numbers, with a length of 64 characters. The transaction hash has the following characteristics:\\n\\n1. Uniqueness: Each  transaction hash corresponds to a unique transaction, and the transaction can be searched for and verified on the blockchain through the transaction hash.\\n2. Immutability: Once the transaction hash is generated, it cannot be changed. This ensures the integrity of the transaction records on the blockchain."}]}],"pr":"7265a01589500d5dd1a7b24025d4ac8f360478e055f8c9e568c5da686436074d"}