Blank Card
Blank Card leverages ZK rollups to safeguard credit and debit cards from cloning while streamlining their integration into the crypto ecosystem.
Blank Card
Created At
Winner of
Blockscout - Blockscout Explorer Big Pool Prize
Prize Pool
Project Description
Credit card cloning is a fraudulent activity where criminals illegally copy data from a legitimate credit card to create a duplicate card. This enables them to make unauthorized transactions while posing as the cardholder.
The primary vulnerability lies in static data storage, such as magnetic stripes, which are easy to replicate. This leads to significant financial losses, erosion of consumer trust, and economic impacts, despite mitigation efforts like EMV chips, contactless encryption, and fraud detection systems. However, issues persist due to outdated infrastructure, evolving fraud tactics, and inconsistent global adoption of secure technologies.
Blockchain technology, combined with Zero-Knowledge (ZK) rollups, provides a transformative solution to these issues. By enabling cryptographic proofs without revealing sensitive data, ZK rollups eliminate the need to transmit or store static information. Projects like Blank Card leverage this technology to secure transaction data, making card cloning practically impossible. This creates a future-proof, decentralized, and highly secure ecosystem for payment systems.
How it's Made
Blank Card employs ZK rollups through Noir to ensure secure and efficient transactions. Running on the Base blockchain, it incorporates Web3Auth for seamless authentication and Blockscout to confirm transaction information. The platform also integrates Pyth oracles for reliable off-chain data and utilizes LayerZero to enable omnichain interoperability, offering a robust and versatile solution for card security and crypto ecosystem adoption.
