{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How is multi-signature implemented in blockchain?","a":"When creating a multi-signature wallet, each private key holder is given a private key to sign assets in the wallet. Private  keys are used for encryption and decryption."}]}],"pr":"2c583528ecb930358eadd78b01de672276eb6190db72d50e20181b93242bcdde"}