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Eigen Labs Leads Quantum Circuit Challenge, Surpassing Google Benchmarks by Over 50%

Emma Whitfield 11.09.2026

Researchers noted that while no actual quantum computer today can run these circuits

A crowdsourced quantum computing challenge organized by Eigen Labs drew more than 100 participants who developed circuits capable of breaking Bitcoin and Ethereum cryptography far more efficiently than previous benchmarks. The event, held online over a two-week period in late 2023, produced results that exceeded Google’s earlier estimates for quantum attacks on elliptic curve cryptography by more than half. Participants focused on optimizing quantum algorithms to target the digital signatures securing major blockchain networks. The challenge highlighted how advances in quantum error correction and circuit design could accelerate threats to current cryptographic standards. Eigen Labs provided tools and datasets simulating realistic quantum hardware constraints, enabling teams to refine approaches for Shor’s algorithm as applied to secp256k1 curves. Top-performing submissions reduced the required quantum gate count by 55% compared to Google’s 2020 baseline, suggesting faster timelines for potential quantum vulnerabilities.

Researchers noted that while no actual quantum computer today can run these circuits, the progress underscores the urgency of upgrading blockchain security. How Close Are We to Quantum-Resistant Blockchain Standards? The results intensify pressure on Ethereum and Bitcoin developers to adopt post-quantum cryptography before scalable quantum machines emerge. Eigen Labs emphasized that the challenge was not about enabling attacks but quantifying risk to inform proactive defense strategies. Several teams proposed hybrid signing schemes combining lattice-based cryptography with existing elliptic curve methods as a transitional solution. The organization plans to publish anonymized results to help standards bodies like NIST evaluate real-world quantum threat models. What Steps Should Crypto Projects Take Now? Developers should prioritize testing quantum-resistant algorithms in testnet environments and increase crypto agility in wallet and node software. Eigen Labs recommends that projects audit their reliance on vulnerable signature schemes and begin integrating fallback mechanisms.

The challenge also revealed gaps in current tooling for simulating quantum attacks

The challenge also revealed gaps in current tooling for simulating quantum attacks, prompting calls for open-source benchmarks. Long-term, the crypto industry may need to coordinate a coordinated upgrade similar to past hard forks but with far higher stakes. Frequently Asked Questions Did Eigen Labs use an actual quantum computer to run these circuits? No, all submissions were simulations based on projected quantum hardware capabilities, using classical supercomputers to model quantum behavior within defined constraints. How much faster could a quantum computer break Bitcoin encryption with these improved circuits? The 55% reduction in gate count translates to significantly lower quantum resource requirements, potentially shortening the estimated timeline for a viable attack by several years, though exact dates remain uncertain. Is Ethereum more vulnerable than Bitcoin to quantum attacks?

Both rely on similar elliptic curve cryptography for transaction signing, so they face comparable risks; differences in upgrade mechanisms may affect response speed but not underlying susceptibility.

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