Choose Rich Live
Crypto News

Stacks Labs completes first post-quantum sBTC transfer on mainnet

Stacks Labs has conducted the first post-quantum sBTC transfer on the Stacks mainnet using a Lamport one-time signature verified through Clarity, demonstrating quantum-resistant verification without requiring protocol changes.

Stacks (STX) network logo in white against a dark background.
Image: @scottmelker

Stacks Labs executed the first post-quantum sBTC transfer on the Stacks mainnet, according to reports from Crypto Briefing and BSCNews. The demonstration relied on a Lamport one-time signature verified directly in Clarity smart contracts, showing that Stacks can check hash-based post-quantum signatures without needing any protocol upgrades.[1][2]

The transfer forms part of broader research into securing Stacks against future quantum threats. Advanced quantum computers represent a long-term risk to Bitcoin and other networks that rely on elliptic-curve cryptography, as powerful machines could potentially compromise those signatures. Because Stacks settles to Bitcoin and sBTC is backed by BTC, Stacks Labs is evaluating other post-quantum schemes and investigating how this cryptographic work could eventually support Bitcoin L1.[1][2]

While the test demonstrated the capability on mainnet, market commentator Scott Melker noted that the primary sBTC system itself has not yet been upgraded.[3]

Key facts

  • Stacks Labs completed the first post-quantum sBTC transfer on the Stacks mainnet.
  • The transaction used a Lamport one-time signature verified in Clarity smart contracts.
  • The test demonstrated that Stacks can verify hash-based post-quantum signatures without requiring a protocol upgrade.
  • Stacks Labs is evaluating other post-quantum schemes to explore how the research could support Bitcoin L1.
  • The main sBTC system has not yet been upgraded.

Sources · 3 sources

  1. CB

    Crypto BriefingArticle ·

    Stacks Labs says it completed first post-quantum sBTC transfer on mainnet The successful post-quantum sBTC transfer on Stacks mainnet highlights the potential for enhanced blockchain security against future quantum threats. The post Stacks Labs says it completed first post-quantum sBTC transfer on mainnet appeared first on Crypto Briefing .

    Open source
  2. BS

    BSCN@BSCNewsPost on X ·

    Stacks is well ahead of the post-quantum game. Stacks Labs just completed the first post-quantum $sBTC transfer on Stacks mainnet. @Stacks used a Lamport one-time signature verified in Clarity, showing the network can already check hash-based post-quantum signatures through smart contracts with no protocol upgrade needed. Quantum computers are a long-term risk for Bitcoin and other chains that rely on elliptic-curve signatures. A sufficiently powerful machine could potentially break those signatures and put funds at risk. The transfer is part of ongoing research into making Stacks quantum-resistant. The team is now looking at other post-quantum schemes and how the work could support Bitcoin L1, since Stacks settles to Bitcoin and $sBTC is backed by $BTC.

    Open source
  3. TW

    The Wolf Of All Streets@scottmelkerPost on X ·

    STACKS $STX COMPLETES ITS FIRST POST-QUANTUM SBTC TRANSFER ON MAINNET, THOUGH THE MAIN SBTC SYSTEM HAS NOT BEEN UPGRADED YET https://t.co/b0ETA9UZOf

    Open source