{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How is multi-signature implemented in blockchain?","a":"Firstly, multiple participants (usually 2 or more)  jointly own a multisignature wallet. The funds in this wallet need to satisfy the signatures provided by multiple participants before being spent."}]}],"pr":"7939f0585b335151cda9c3a52cb9125c8d64d07d0ceb94107215b63016afe294"}