{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the different forms of public key authorization for withdrawing funds in a blockchain?","a":"Multi-signature: This form allows the withdrawal to be authorized by the collaboration of multiple private keys. This method can enhance security because the withdrawal requires consent from multiple participants. Multi-signature schemes can be divided into class-based multi-signature and multi-class multi-signature, suitable for different application scenarios."}]}],"pr":"992e1843bd95db0ee7b648cd1fdf63b9a8ca62f96badbb48ead11815a63ff1a8"}