{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How do you perform multi-signature in a blockchain?","a":"Off-chain (Outside Chain) Communication: Traditional multi-signature wallets require parties to conduct off-chain communication to collect all signatures. In this process, participants need to trust each other, otherwise there may  be security risks. After the multi-signature is completed, the signature is submitted to the chain to achieve the purpose of authorized transaction."}]}],"pr":"2c7848a4a7a8312ab31845323f4bacb9c5e531f3db128599d57873cf044edf18"}