Quantum tech is now directly challenging crypto. Project 11 has introduced a worldwide competition. The reward? One full Bitcoin for anyone who can use a quantum machine to crack a simulated private key. The catch? It must be done with Shor’s algorithm and real quantum hardware—no emulators allowed.
This isn’t an attack. It’s a stress test. Project 11 wants to know whether quantum computers can realistically threaten the cryptographic methods behind Bitcoin. The challenge aims to spark innovation, reveal gaps, and push blockchain security to evolve faster.
What the Quantum Bounty Is All About
The competition is called the Q-Day Bounty. The mission is crystal clear: apply quantum computing to break a custom ECC key. Submit your results. Earn one Bitcoin. The entry window closes on April 5, 2026.
No simulations. No hypothetical results. Only quantum processors count. The challenge demands actual hardware execution of Shor’s algorithm. The outcome must demonstrate quantum advantage with verifiable output.
This isn’t about cracking Bitcoin today. It’s about exploring how close we are. Could someone with access to strong quantum hardware replicate the conditions to break Bitcoin security? That’s the real question Project 11 is asking.
Why This Quantum Challenge Exists

Project 11 believes the blockchain space is underestimating the risk. Bitcoin and other networks depend on encryption that was never designed to resist quantum attacks. If no one addresses this early, it could be too late when the technology catches up.
To speed up awareness, they’re putting 1 BTC on the line. It’s enough to grab attention but also symbolic. The bounty is designed to draw developers, cryptographers, and physicists into a practical conversation about future-proofing blockchains.
Project 11 hopes this initiative encourages experimentation, not panic. Anyone from a university lab to a major tech firm can join—if they can deliver on the core requirement: real quantum computation, real results.
How Real Is the Quantum Threat?
Right now, breaking Bitcoin with quantum power isn’t feasible. The quantum computers available today have a few hundred qubits at best. To realistically attack Bitcoin’s encryption, a system would likely need millions of high-quality qubits.
Still, breakthroughs happen fast. Tech giants are racing to expand their qubit counts. If one of them hits a leap forward, the theoretical threat could become very real. That’s why staying ahead matters.
The key vulnerability lies in the elliptic curve cryptography Bitcoin relies on. Shor’s algorithm can theoretically crack it. But only if the hardware is powerful enough. So far, it isn’t. But that could change unexpectedly.
Bitcoin’s Exposed Share
Roughly 20% of Bitcoin is stored in legacy wallets that expose public keys. These are the easiest potential targets for a future quantum breach. If a working quantum exploit emerged, those assets could be drained instantly.
The Q-Day Bounty brings this issue into the spotlight. It creates urgency. Even if no one wins, the experiment gives insight into how much progress has been made. And how much further there is to go.
If a winner does emerge, the entire industry would need to react fast. Protocols, security tools, and even coin formats might require overhauls. Forks would become unavoidable. The ripple effects would be massive.
The Crypto Community Reacts
Reactions are mixed. Some worry the bounty might tempt malicious actors. Others see it as an essential research initiative. Many developers and blockchain engineers view it as a needed wake-up call.
Public bug bounties and open challenges have long been tools for improving security. This one just happens to involve quantum physics. Security teams across crypto projects are now watching closely. Even failed attempts could offer valuable data.
It’s not just about cracking the key. It’s about learning what the best quantum systems can currently do. Every experiment counts toward preparing for tomorrow’s risks.
Building Quantum-Proof Blockchains

Some blockchain networks are already preparing for a post-quantum world. They’re experimenting with quantum-resistant algorithms. These cryptographic models are designed to survive quantum attacks, even if Shor’s algorithm becomes practical.
Bitcoin, however, is slow to change. Its conservative development model values stability over speed. But when quantum computing reaches critical mass, that approach might backfire. Entire ecosystems depend on Bitcoin’s stability. A failure there would shake all of crypto.
This makes it even more important to test now. If weaknesses are discovered early, the community has time to adapt. But if quantum advances arrive unexpectedly, it could be a full-blown crisis.
If Someone Cracks the Key
The first to solve the challenge will walk away with 1 BTC. But the real consequence will be much larger. A functioning quantum break—even on a toy key—would prove that Bitcoin’s foundation is vulnerable.
Expect developers to scramble. New standards would emerge. Wallet providers might lock down exposed keys. Networks could pause transfers. The effects would ripple through the entire financial sector that relies on blockchain.
The moment someone wins, the race for post-quantum adaptation will go into full gear. And everyone will look back at this contest as the moment everything changed.
The Big Takeaway
Project 11 isn’t predicting Bitcoin’s fall. They’re preparing for a new future. This bounty offers the community a glimpse of what lies ahead if quantum machines fulfill their potential. It also highlights the need for security evolution—before it’s too late.
The blockchain space has grown fast. But new tech like quantum computing could disrupt everything. The smartest move right now is to stay ahead of the curve. The countdown to the quantum era has started. And crypto needs to be ready.
Disclaimer: This article is for informational purposes only and does not constitute financial or investment advice. Readers should do their own research before making any decisions.