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glassnode

Glassnode is a platform that provides on-chain and financial metrics, charts, data, and insights for Bitcoin and digital assets.
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first_img Glassnode: Bitcoin saw a new inflow of 4.9 billion USD over 30 days, with the upward trend relying on existing holders

The cryptocurrency research platform Glassnode pointed out in the latest issue of The Week Onchain report that within the 30 days ending on October 5, approximately $4.9 billion of "new funds" flowed into Bitcoin, covering corporate treasury purchases, stablecoin growth, and inflows into U.S. spot Bitcoin ETFs. During the same period, Bitcoin achieved a market capitalization increase of $12.8 billion, more than double the size of the new funds.Glassnode stated that new funds only accounted for less than two-fifths of this increase, with the remainder coming from existing market funds being traded at higher prices. Data shows that since the launch of the spot ETF in January 2024, Bitcoin's upward trends have shown similar differentiation, but the scale of inflows accompanying the rises in 2024 and 2025 is far greater than the current situation. Glassnode noted that before inflows recover, the market will rely on existing holders to pay higher prices.Since September 21, Bitcoin has attempted to break through $87,000 four times without success, and as of the time of writing on Thursday, it was around $83,000, down 1% for the month. Glassnode pointed out that on the first week since January when Bitcoin closed above $85,000, about 86% of the tokens transferred to exchanges came from short-term holders who had held for less than 155 days and were in profit, marking the highest single-day proportion in the past year. CryptoQuant data shows that as of October 7, the overall cost basis for short-term holders is approximately $78,250, still in a net profit state.

first_img Europol report: Cryptocurrency wallets are the main risk points for quantum attacks

On Wednesday, the European Union law enforcement agency Europol released two reports urging the industry and policymakers to proactively address the threats posed by quantum computing. One report, titled "Quantum Computing and Cryptocurrency," written by Europol's European Cybercrime Centre, points out that cryptocurrency wallets are "the main exposure point for quantum threats." Wallets rely on private keys for authorized transactions and public keys for verification; a sufficiently powerful quantum computer could derive the private key from an exposed public key, allowing attackers to access funds without authorization, a moment often referred to as Q-Day. The report states that the hash functions used to link blocks and support mining are fundamentally resistant to quantum attacks.The report believes that cryptocurrency will not collapse due to quantum computing but recommends adopting "proactive defenses," including a phased transition to quantum-resistant cryptography and improving wallet security and key management. Wallets with public keys exposed on-chain cannot be remedied afterward, and the report states that the only solution is to migrate in advance. Glassnode estimated in May this year that 6.04 million BTC (30.2% of the issued supply) have exposed public keys. Upgrading Bitcoin also comes with costs: NIST standardized post-quantum signatures are 10 to 120 times larger than the ECDSA signatures currently used in Bitcoin, which could lead to block space overload and increased transaction fees. The report cites a 2024 study estimating that migrating all unspent transaction outputs would require at least 76 days of cumulative downtime.The second report, "Collect First, Decrypt Later," was completed in collaboration with Carlos III University of Madrid in Spain. It studies the behavior of attackers who collect encrypted data today and decrypt it in the future, finding risks in protocols such as TLS, SSH, and OpenPGP.
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