Paraguay's largest bank, Ueno Bank, is the first to deploy a quantum-resistant blockchain security system.

Ueno Bank, Paraguay's largest bank, announced the implementation of quantum-resistant electronic signatures and tamper-proof timestamps, marking the first implementation of post-quantum security technology into a production environment. The bank, based on the QANplatform's quantum-resistant Layer-1 hybrid blockchain and combined with the SignQuantum signature extension, provides a mathematically verifiable, unalterable record for electronic documents and business records. This initiative complies with the post-quantum cryptography standards spearheaded by the U.S. National Institute of Standards and Technology (NIST) and provides a replicable model for the financial industry to mitigate the risks of future quantum computing cracking. Industry insiders claim this is the first bank in the world to deploy this combined technology at production scale, establishing a "quantum-safe" paradigm for financial institutions in Latin America and globally.