BTCNaN
ETHNaN
BNBNaN
SOLNaN
XRPNaN
DOGENaN
BTCNaN
ETHNaN
BNBNaN
XRPNaN
SOLNaN
DOGENaN
Play Article AudioRead
Picture of the author
Inside Crypto
1 year, 6 months ago

Project Eleven Offers 1 BTC to Whoever Breaks Bitcoin's ECC Key With Quantum Computing

Play Article AudioRead
Project Eleven, a quantum computing research and advocacy firm, has launched the Q-Day Prize, a global competition offering 1 bitcoin (BTC) to the first team able to break an elliptic curve cryptographic (ECC) key, the cryptography which secures the Bitcoin network, using Shor’s algorithm on a quantum computer.

Shor's algorithm is a quantum computing method that efficiently factors large numbers into their prime components, theoretically allowing quantum computers to break cryptographic algorithms like RSA and elliptic-curve cryptography used in Bitcoin and other blockchain networks.

STORY CONTINUES BELOW Don't miss another story. Subscribe to the The Protocol Newsletter today . See all newsletters Sign me up By signing up, you will receive emails about CoinDesk products and you agree to our terms of use and privacy policy .

We just launched the Q-Day Prize.



1 BTC to the first team to break a toy version of Bitcoin’s cryptography using a quantum computer.



Deadline: April 5, 2026

Mission: Protect 6M BTC (over $500B) — Project 11 (@qdayclock) April 16, 2025

The contest comes as quantum computing advancements mean that a workable quantum computer might only be years away. Project Elevent has also identified more than 10 million bitcoin addresses with non-zero balances potentially at risk of quantum attacks.

The Bitcoin community is aware of the quantum computing threat and is working on solutions.

As CoinDesk previously reported, a Bitcoin Improvement Proposal (BIP), titled Quantum-Resistant Address Migration Protocol (QRAMP), was introduced in early April, which suggests enforcing a network-wide migration to post-quantum cryptography to safeguard Bitcoin wallets. This would require a hard fork, however, and getting that sort of consensus would be an uphill battle.

Quantum startup BTQ has also proposed its own solution: a quantum-based alternative to Bitcoin’s Proof of Work called Coarse-Grained Boson Sampling (CGBS).

CGBS works by using quantum computing to generate unique patterns of photons (light particles called bosons), replacing traditional mining puzzles with quantum-based sampling tasks for validation.

But BTQ's CGBS also requires a hard fork, and the appetite for such a change isn’t yet known.
EDITOR’S CHOICE