{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What is the role of a wallet in a blockchain?","a":"Implement decentralized transactions: Chain-based wallet exchanges serve as a decentralized trading platform  that enables users to conduct transactions without relying on a centralized entity."}]}],"pr":"cad9e702254f77d953841c4b4ddad3d52a8cff8f31742f93d02d8a8d1af3f627"}