Sensitive card information—such as card number and CVV—requires on-chain wallet signature authorization to access, and related records can be queried on-chain.
What is an on-chain signature? What guarantee does it provide for me?
An on-chain signature refers to the digital signature of transactions, where users use their private keys to prove the legitimacy and authorization of transactions.
Only the person who holds the private key can generate a valid signature, ensuring the security of the transaction.
On-chain signatures ensure that only cardholders can authorize transactions, reducing the risk of unauthorized transactions.
Transaction records are transparent and tamper-proof on the blockchain, enhancing fund security.