First Quantum-Safe Bitcoin Transaction Successfully Completed on Mainnet

In a significant development for Bitcoin security, the first post-quantum resistant transaction has been successfully mined on the Bitcoin mainnet. This milestone was achieved without the need for any soft forks, hard forks, or core protocol upgrades, thanks to the Starknet Foundation's innovative approach.

Damian Chen, VP of growth at Starknet, announced the transaction during the Bitcoin Asia conference in Hong Kong, emphasizing its importance in safeguarding funds against potential quantum attacks. The transaction utilized a method developed by StarkWare researcher Avihu Levy, which shifts the security model from elliptic-curve signatures to hash-based security.

The transaction was included in block 964,199 and was submitted directly to the mining company MARA through its Slipstream service. While this transaction demonstrates that Bitcoin can support a quantum-safe spending path without altering consensus rules, experts caution that it does not make Bitcoin entirely quantum-safe.

StarkWare's Chief Executive, Eli Ben-Sasson, noted that while the transaction proves workable solutions exist, broader soft-fork solutions are still necessary to protect the network comprehensively. Currently, approximately 7 million BTC remain vulnerable due to their public keys being exposed through older address formats or reused addresses.

As quantum computing continues to evolve, the need for effective migration tools and protocol-level solutions becomes increasingly urgent. The recent transaction marks a promising step forward, but the broader challenge of securing all Bitcoin users against quantum threats remains unresolved.