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BTC QuFi Network launches a quantum-resistant verification platform to protect digital assets without changing the existing blockchain settlement network.
Quantum infrastructure company QuFi Network has launched a verification platform that aims to protect digital assets from future quantum computing threats without changing the existing blockchain settlement network. The platform separates verification and settlement and uses a decentralized network of nodes to verify transactions before entering existing blockchain networks for settlement.
QuFi also launched the uBTC proof-of-concept project, which applies the verification system to Bitcoin (BTC) and is currently running on Bitcoin Testnet4. The uBTC system is responsible for verifying BTC collateral and generating cryptographic certificates that control the flow of value between different settlement environments, while redemption operations will ultimately be settled in the form of standard Bitcoin transactions.
The platform uses three post-quantum cryptography standards-ML-DSA-65, SLH-DSA and ML-KEM-1024-for digital signatures and secure key exchanges. QuFi said the introduction of an external verification layer aims to avoid the additional storage, bandwidth and computing requirements of adopting larger post-quantum signatures directly on individual blockchains.
Related developments: The first quantum attack in the cryptocurrency field may manifest as an unexplained security vulnerability: Founder of Quantus; the cryptocurrency industry strengthens quantum defense measures.
The launch of the platform comes amid a series of recent efforts by blockchain networks to prepare for potential quantum computing threats. In August, StarkWare tested a quantum-resistant Bitcoin transaction on the main web that can be completed without forking. However, the transaction takes hours to calculate, costs approximately $150 to $200, and its non-standard format requires submission directly to miners.
Jonas Nick announced the BIP SHRINCS proposal on August 26. In the same month, banks and regulators in Europe, the Middle East and Asia joined a pilot program to test post-quantum wallets and on-chain transfers using ML-DSA-65, one of the same cryptographic standards adopted by the QuFi platform. At the same time, the Ethereum Foundation removed the Poseidon hash function from its planned post-quantum architecture and switched to mature alternatives such as SHA or BLAKE.
Bitcoin developers are also exploring protocol-level defenses. In August, Blockstream researchers released a Bitcoin Improvement Proposal (BIP), proposing the SHRINCS scheme, an experimental post-quantum signature mechanism designed to reduce the size and performance overhead caused by anti-quantum signatures.
This approach comes with certain trade-offs. SHRINCS uses stateful signatures to reduce signature size, which requires the wallet to keep track of the signature key used. The solution is still in its early stages, has not yet completed safety certification, and its design increases complexity and the risk of potential user failure.
