贝莱德在修订后的比特币 ETF 文件中扩大了量子风险披露

Core Insights - BlackRock has updated its iShares Bitcoin Trust (IBIT) prospectus to include a more detailed discussion on the potential risks posed by quantum computing, expanding on previous mentions of the technology [2][3] Group 1: Quantum Computing Risks - The revised prospectus outlines how advancements in quantum computing could undermine the viability of many encryption algorithms used globally, including those protecting digital assets like Bitcoin [3] - The document states that if quantum computing develops in this manner, it could lead to the failure of the encryption technology underlying the Bitcoin network, potentially allowing malicious actors to compromise Bitcoin wallets and resulting in shareholder losses [3][4] - Although the Bitcoin community is working on quantum-resistant solutions, the prospectus notes that there is no guarantee that new quantum-resistant architectures can be established or implemented across the network in a timely manner [4] Group 2: Industry Developments - Concerns regarding quantum computing and its threat to Bitcoin security have been ongoing, particularly following Google's release of its next-generation quantum chip, Willow, which can solve certain computational tasks in minutes that would take classical supercomputers billions of years [5] - Microsoft has also announced a milestone with its Majorana 1 quantum chip, which reportedly addresses key scalability challenges in quantum technology, further raising concerns in the crypto space about the rapid development of quantum computing [6] - Despite the advancements in quantum computing, most experts agree that its performance and stability are not yet sufficient to pose a real threat to Bitcoin in the short term, as breakthroughs remain largely theoretical without practical application [6] Group 3: Potential Benefits of Quantum Computing - The industry is not remaining idle; many projects are exploring or implementing quantum-resistant technologies in anticipation of a "quantum-safe" future [6] - Interestingly, quantum computing may not only pose risks but could also enhance blockchain security, as researchers from JPMorgan, Quantinuum, and others have successfully used quantum computers to generate verifiable random numbers, which could strengthen encryption and improve digital signatures [6]