{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the optional information for blockchain smart contracts?","a":"Contract source code: The program code of the smart contract, usually written in a smart contract  programming language (such as Solidity, Vyper, etc.), which defines the functionality and logic of the contract."}]}],"pr":"0457d5d67e05dd2e6d8c5f62210172bd077bb6c68ad1b31cbf7151725a0ad7c5"}