quant

The "Quantum Computing and Blockchain Independent Advisory Committee" established by Coinbase has released its first position paper. The core conclusion of this position paper is that the core infrastructure of Bitcoin is fundamentally secure. Quantum computing does not pose a substantial threat to Bitcoin mining, hash functions, and the historical records of the blockchain. The real vulnerability lies at the wallet level, and Ethereum has laid out a clear roadmap to address this issue in the near future.Previously, Coinbase announced the establishment of the Quantum Computing and Blockchain Independent Advisory Committee in January this year, with committee members including researchers from Stanford University, the University of Texas at Austin, and the Ethereum Foundation.

According to Decrypt, Coinbase's Quantum Computing and Blockchain Independent Advisory Committee released a report on Tuesday stating that proof-of-stake (PoS) blockchains may face a greater risk of exposure to future quantum computing attacks, as the cryptography relied upon by the validator signatures that protect these networks could ultimately be cracked by sufficiently powerful quantum computers. The report points out that PoS networks like Ethereum and Solana rely on cryptographic signatures—Ethereum validators use BLS signatures, while Solana validators and users use Ed25519 signatures—to help the network reach consensus on blocks and maintain consensus.The advisory committee stated, "PoS chains have exposure risks in the signature schemes used by validators to protect the network, which means that the challenges faced by PoS are not just about upgrading wallets; parts of the core consensus mechanism itself may need to be redesigned." The report mentioned recent work by Ethereum developers, including a proposal by co-founder Vitalik Buterin in February to replace BLS validator signatures, KZG commitments, and ECDSA wallet signatures with quantum-resistant alternatives.The committee also listed the digital signatures used in cryptocurrency wallets as another major long-term vulnerability, estimating that about 6.9 million bitcoins belong to the category where the public keys are already visible on-chain. The report stated that the current cryptocurrency system remains secure, as quantum computers capable of breaking modern cryptographic signatures do not yet exist.

The Coinbase Quantum Computing and Blockchain Independent Advisory Committee has released its first position paper stating that sufficiently powerful quantum computers may be able to crack the encryption mechanisms used by mainstream blockchains to protect digital assets in the future. However, such devices do not currently exist, and encrypted assets remain secure for now. The industry should begin preparing for quantum resistance upgrades starting now.The document points out that there are currently no substantial risks associated with Bitcoin mining, hash functions, and on-chain historical records; the main vulnerability lies in the digital signatures at the wallet layer. Ethereum has proposed a clearer migration roadmap, and Solana, Algorand, and Aptos have also begun to provide or plan quantum resistance solutions.

ChainCatcher reported live that Justin Sun, the founder of TRON, shared a keynote speech titled "From TRON to B.AI: Infrastructure as the Game-Changer in the AI Era" at this year's 2026 Hong Kong Web3 Carnival.He introduced that TRON currently supports about 86.4 billion USDT, with other stablecoins bringing the total close to 90 billion dollars, and the global account number has reached 376 million, making it one of the largest stablecoin settlement networks in the world. He emphasized that the most important aspects of financial services are stability and security, rather than being cheap.He pointed out that the existing payment systems are not compatible with AI, as bank accounts require human identity for opening, and each payment needs manual authorization, which cannot support high-frequency decision-making by AI. B.AI is building the underlying financial infrastructure for AI agents, allowing each AI to operate without becoming human, managing keys and on-chain wallets through cryptography to complete payments, and can anonymously call the world's most

Ripple officially announced its quantum resistance roadmap, with the core goal of making the XRP Ledger (XRPL) quantum-resistant by 2028. The roadmap primarily addresses the potential attack mode of "harvest now, decrypt later," where attackers collect encrypted data now and wait for future quantum computers to mature before cracking it.The entire plan will be implemented in four phases:Phase 1: Q-Day Emergency Preparedness (Already Started). Establish a Q-Day emergency response mechanism. If the existing classical encryption system is suddenly compromised, the network will immediately stop accepting traditional public key signatures, forcing a migration to quantum-safe accounts. At the same time, explore asset ownership verification solutions based on Post-Quantum ZK-proofs, allowing existing account holders to safely recover funds in emergencies without exposing vulnerable keys.Phase 2: Risk Assessment and Algorithm Testing (First Half of 2026). Conduct a comprehensive assessment of the impact of post-quantum cryptography on the performance, storage, and bandwidth of the XRP Ledger network. Collaborate with Project Eleven to conduct validator-level testing and Devnet benchmarking, deploy NIST standardized ML-DSA quantum-safe signature schemes, and develop prototypes for post-quantum custodial wallets. Core engineer Denis Angell has already deployed ML-DSA signatures on XRPL's AlphaNet.Phase 3: Devnet Hybrid Integration (Second Half of 2026). Parallel integration of candidate post-quantum signature schemes with existing elliptic curve signatures on the developer network (Devnet), allowing developers to test performance and system impacts without affecting the mainnet. At the same time, explore post-quantum zero-knowledge proof primitives and homomorphic encryption technologies for Confidential Transfers to enhance the privacy and compliance capabilities of tokenized real-world assets on XRPL.Phase 4: Full Mainnet Upgrade (Target 2028). Submit a formal protocol amendment, which will be fully enabled on the mainnet after being approved by validator votes, to implement native post-quantum cryptography. Focus on production-ready optimization: throughput tuning, validator reliability assurance, and coordinated migration of the ecosystem, ensuring a complete transition without affecting network speed and settlement finality.

Sonic elaborates on its technological path towards the "post-quantum era," pointing out that most current PoS public chains rely on elliptic curve signatures (such as ECDSA, Ed25519), which are at risk of being cracked once quantum computing (like Shor's algorithm) matures.Sonic states that the industry is exploring post-quantum cryptographic solutions (such as hash-based XMSS, SPHINCS+, and lattice-based Dilithium, Falcon), but mainstream consensus mechanisms generally rely on BLS aggregate signatures and threshold signatures, making the transition to post-quantum systems face challenges in performance, bandwidth, and architectural reconstruction. In contrast, Sonic's SonicCS consensus protocol does not rely on aggregate signatures or global randomness, but instead uses single-node signatures and hash functions to construct a DAG structure. Therefore, when switching to post-quantum cryptography, only the signature algorithm needs to be replaced to complete the upgrade, without the need to adjust the consensus logic or network structure. Sonic emphasizes that this design will significantly reduce the complexity of future migrations to post-quantum security, enabling the network to have stronger adaptability when quantum computing threats arise.

Hong Kong police disclosed a fraud case that used "AI quantitative trading" as a gimmick to lure investments in cryptocurrency, with a woman being defrauded of approximately 7.7 million Hong Kong dollars.The scammer impersonated an "investment expert" and actively contacted the victim through Telegram, claiming to use "quantitative trading" and "AI algorithms" to achieve stable high returns. The victim transferred USDT and ETH worth about 7.7 million Hong Kong dollars from her electronic wallet to a designated address 17 times, only to realize she had been scammed when her withdrawal attempts were rejected. The Hong Kong police remind the public that while cryptocurrencies have high return potential, they also come with high volatility and high risk. The so-called "AI trading" and "quantitative guaranteed profits" are often bait for scams, and the public should be wary of the "impossible triangle" trap of high returns, low risk, and low thresholds.

ChainCatcher reported live that Hong Kong Legislative Council member (Technology and Innovation sector) Kenneth K.Y. Lau shared a keynote speech titled "Steady and Progressive Development Keeps Hong Kong at Forefront of Web3 Expansion" at the 2026 Hong Kong Web3 Carnival.He reviewed the development of Web3 in Hong Kong since 2022, from the licensing system for virtual asset service providers, the pilot of tokenized products, to last year's Policy Declaration 2.0 and the SFC ASPIRe roadmap, believing that regulatory clarity is the primary condition for the industry's development.He specifically compared the regulatory paths of the United States and Hong Kong, pointing out that although the U.S. has introduced important documents such as the Clarity Act, Genius Act, and the joint statement from the SEC and CFTC, the political situation may lead to legislative delays or even reversals; in contrast, Hong Kong provides a stable, transparent, and continuous development environment in terms of product classification, legislation, and infrastructure.He also mentioned the potential threat of quantum computing to the cryptocurrency industry, believing that at least five more years are needed, but the industry should prepare in advance at the cryptographic level. Finally, he emphasized that Hong Kong needs more technology developers and should promote cross-jurisdictional connectivity to form a positive flywheel for product issuance, investor participation, and innovator entry.

The Hong Kong police disclosed a fraud case that lured investors into cryptocurrency with the gimmick of "AI quantitative trading," in which a woman was scammed out of approximately 7.7 million Hong Kong dollars. The fraudster impersonated an "investment expert" and proactively contacted the victim through Telegram, claiming to use "quantitative trading" and "AI algorithms" to achieve stable high returns. The victim transferred USDT and ETH worth about 7.7 million Hong Kong dollars from her electronic wallet to a designated address 17 times, only to realize she had been scammed when her withdrawal attempts were rejected.The Hong Kong police remind the public that while cryptocurrencies have high return potential, they also come with high volatility and high risks. The so-called "AI trading" and "quantitative guaranteed profits" are often bait for scams. The public should be wary of the "impossible triangle" trap of high returns, low risks, and low thresholds.

The UK-listed company Quantum Blockchain announced a placement of 142,857,142 new shares at a price of 0.35 pence per share to raise £500,000. In addition, the company announced the establishment of a new Bitcoin mining subsidiary, BlocKeeper, and the new funds will be used to accelerate its AI-driven Bitcoin mining research and development.

According to Cryptoquant, the Bitcoin Comprehensive Market Index (BCMI), composed of MVRV, NUPL, SOPR, and the Fear and Greed Index, is currently testing a historically key pivot zone. Analyst Woominkyu (@Woo_Minkyu) stated that the BCMI index has fallen to the range of 0.2 to 0.3. While it does not guarantee an immediate "V-shaped" reversal, this area historically corresponds to deeply undervalued levels for BTC.Through data backtracking, BCMI confirms that the current pullback has reset realized value and market sentiment to levels not seen since the beginning of 2023; however, the 90-day moving average (white line) is still trending downward. From a conservative perspective, it is necessary to wait for this slope to flatten, which will signal the exhaustion of selling pressure. Additionally, analyst Woominkyu believes the market is entering a "value accumulation zone," where the downside potential is shrinking compared to the long-term upside potential. However, it is still necessary to wait for price stabilization to confirm the bottom signal of the index.

Blockstream CEO Adam Back stated that Bitcoin should adopt an optional quantum-resistant upgrade scheme, rather than the mandatory freezing of tokens at risk from quantum threats proposed in BIP-361.The BIP-361 proposal suggests phasing out addresses vulnerable to quantum attacks over five years and ultimately freezing un-migrated tokens, including assets held by Satoshi Nakamoto. Google's latest research indicates that a superconducting qubit system may need fewer than 500,000 physical qubits to crack Bitcoin encryption in just a few minutes. Currently, about 6.9 million BTC are at risk from such threats. In response to the quantum threat, BitMEX Research proposed establishing a canary fund that would implement a full freeze only when expenditures occur from the relevant addresses.

According to market news, Blockstream CEO Adam Back stated at the Paris Blockchain Week that he supports the optional advancement of Bitcoin's quantum resistance upgrade and opposes the proposal to forcibly freeze quantum-vulnerable addresses. He emphasized that "preparation is much safer than hasty responses in a crisis" and pointed out that the Bitcoin community has the coordination ability to respond quickly to urgent vulnerabilities.Previously, the BIP-361 proposal ("Post-Quantum Migration and Legacy Signature Sunset") put forward by developers Jameson Lopp and five others advocated for the gradual elimination of quantum-vulnerable addresses over five years, ultimately freezing coins that have not completed migration— including approximately 1.7 million Bitcoins held by Satoshi Nakamoto.

According to CoinDesk, Blockstream CEO Adam Back stated at Paris Blockchain Week that Bitcoin developers should advance optional quantum-resistant upgrades as early as possible, even though practical quantum computers are still far from being realized.He pointed out that Taproot's flexible design can support the introduction of new quantum-resistant signature schemes without affecting existing users. Previously, Jameson Lopp and others proposed BIP - 361, which aims to gradually phase out addresses vulnerable to quantum attacks within 5 years and freeze Bitcoin that has not completed migration. Adam Back believes that the Bitcoin community can quickly coordinate responses in emergencies without the need for pre-established freezing arrangements.

According to official news, BitMEX Research has released a new research article proposing that in response to the risk of future quantum computers potentially breaking elliptic curve signatures, the Bitcoin network could adopt an alternative soft fork mechanism to "directly freeze" to reduce controversy and increase flexibility.The proposal revolves around "quantum-vulnerable fund freezing," but suggests avoiding the direct freezing of all related assets without evidence, instead gradually implementing security strategies through a verifiable condition-triggering mechanism. The core of the proposal is to establish a "signal vault," which contains special addresses generated using "accidental numbers" to prove that no one possesses their private keys. If passive spending occurs from that address, it will be regarded as on-chain evidence that quantum computing capabilities genuinely exist, thereby immediately triggering a comprehensive freeze of quantum-vulnerable assets.At the same time, the fund could attract capital through a multi-signature structure as a "quantum bounty," aimed at incentivizing potential attackers to expose their capabilities. The article also mentions that there is currently a BIP-361 proposal promoting the phased disabling of the old signature system and ultimately freezing risky assets, but this proposal is controversial due to its involvement in "mandatory freezing."The newly proposed "signal-trigger + security window" mechanism aims to replace the fixed-time freeze path, reducing potential system shocks while retaining Bitcoin's censorship-resistant characteristics, but it also brings complexity and execution risk trade-off issues.

According to The Block, CryptoQuant's research director Julio Moreno stated on Wednesday that Bitcoin's recent rally is facing an increasing risk of profit-taking, with multiple on-chain indicators showing that selling pressure is strengthening. Currently, the price of Bitcoin has slightly retreated but is testing the on-chain "realized price" of $76,800 for traders. This level is seen as a significant bearish resistance, historically often limiting the rebound space, as holders close to breaking even are more inclined to sell for profit, thereby suppressing further increases.Moreno pointed out, "This price range precisely capped the price increase during the bear market rebound in January 2026 and reversed downward after reaching that level. If the current selling pressure continues to strengthen, a similar trend may occur again." He added that if the resistance level holds, approximately $67,600 below will become the main short-term support. The report also noted that the proportion of large trades has rapidly increased from less than 10% to over 40%, and historically, this level usually corresponds to strong short-term selling pressure. Profit-taking has not yet peaked. Currently, the daily realized profit is about $500 million, below the $1 billion threshold that historically marks significant sell-off peaks.Finally, Moreno stated that if Bitcoin remains above $76,000, or even approaches the realized price level of $76,800, the daily realized profit could accelerate to over $1 billion, thereby increasing selling pressure and raising the likelihood of a temporary top or correction in the market.

CryptoQuant indicates that Bitcoin's recent rebound is facing increasing selling pressure risks, with on-chain data showing a significant rise in funds flowing into exchanges. Bitcoin previously broke through $76,000 but faced pressure and retreated as it approached the key resistance zone around $76,800. This position corresponds to the "on-chain realized price" range, which historically often becomes the top of a rebound, as many investors with positions close to breakeven tend to sell.Data shows that the hourly inflow of Bitcoin into exchanges has risen to about 11,000 coins, the highest level since the end of 2025, and is typically seen as a potential selling signal. At the same time, the scale of large holders (whales) transferring to exchanges is also expanding. Analysts believe that if this resistance level remains effective, Bitcoin may face short-term correction pressure, with key support levels around $67,600.