The Quantum-Safe Bitcoin (QSB) proposal put forward by StarkWare researcher Avihu Levy uses existing Bitcoin scripts to provide post-quantum security, avoiding a soft fork. QSB uses a Binohash-based construction and a “hash-to-signature” puzzle to defend against quantum computers’ attacks on elliptic curve cryptography. The scheme relies on RIPEMD-160’s preimage resistance, effectively strengthening the security of Bitcoin transactions.

StarkWare researchers proposed a quantum-safe Bitcoin scheme called QSB, aiming to replace the elliptic curve mechanism with hash assumptions to counter the threats posed by Shor’s algorithm. The scheme can run within existing scripts, requires no consensus changes, but does require submitting a transaction to a specific service.

Changpeng Zhao said in an interview that advances in quantum computing technology could threaten the security of existing cryptocurrencies, and that Bitcoin may need to adopt post-quantum encryption technology through a fork upgrade. He emphasized that the emergence of new encryption algorithms will help address the challenges posed by quantum computing.

DeSci project NanoVita announced on April 9 that it has completed a Series A funding round, with a post-investment valuation of $20 million. The funding amount was not disclosed. This round was participated in by K24 Ventures, LandScape Capital, and WestLabs, with the goal of building open on-chain health research infrastructure.

Blockstream CEO Adam Back said in an interview that quantum computers have not yet threatened the Bitcoin network, but the industry needs to prepare in advance by migrating keys to a quantum-resistant format. He mentioned that his research team is pushing forward on related work; post-quantum cryptography has already entered the implementation stage. The challenge faced is how to complete the migration in an orderly way.

Gate News update, April 7, Zhao Changpeng said in a social media post that he will hold a conversation with the influencer The Wolf Of All Streets at 8:00 Beijing time on April 9 to discuss the content of his new book and share some behind-the-scenes stories that have never been made public before.

Gate News message, April 7, a well-known Bitcoin analyst Willy Woo recently responded to a post questioning that “Bitcoin consumes too much energy.” He said there are only three ways to ensure the safety of a currency’s ledger: relying on physical atoms (like gold), depending on energy consumption (like Bitcoin), and building on social/political consensus (like fiat currency). Willy Woo emphasized that energy is the only path to forging an absolute hard currency, and physical atoms are not scarce.

Circle announced its post-quantum security roadmap for its Layer-1 Arc blockchain, aiming to ensure the security of wallets, signatures, validators, and off-chain infrastructure by before 2030. The roadmap is divided into four phases: the first phase will go live on the mainnet in 2026, using NIST-approved post-quantum signature schemes, highlighting the industry’s response to quantum threats. Arc offers a more concrete implementation plan than its competitors, marking a new advancement in security for the crypto industry.

Circle L1 blockchain Arc releases quantum-resistant design and a roadmap, aimed at defending against threats posed by quantum computing and ensuring blockchain security. The roadmap covers quantum-resistant wallet signing, private state protection, and infrastructure upgrades, supporting user choice and compatibility with the EVM ecosystem.

Korea’s Toss Payments becomes the first company to fully implement post-quantum cryptography, using the NIST-standard algorithm "ML-KEM" to enable hybrid key exchange and enhance security against threats from quantum computers.