{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"In the blockchain, which off-chain signature scenarios does Solana support?","a":"Proxy signatures: Proxy signatures allow representatives to initiate transactions on behalf of other users without knowing their private keys. This application scenario is useful in decentralized finance (DeFi)  scenarios, where users want to leverage assets held in smart contracts without exposing their private keys.↵↵..."}]}],"pr":"ce1ebf362ff210213d45220faf4cad65dbda5826f434938722a914a4efbce5a9"}