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Paradigm general partner Dan Robinson proposed the "Proof of Address Control Timestamp" (PACTs) mechanism, aimed at providing a protection path for Bitcoin addresses against potential threats from quantum computing.This solution allows holders to generate address control proofs through BIP-322 and create on-chain commitments using a random salt value, completing time anchoring with OpenTimestamps to establish ownership proof without disclosing wallet information. If quantum-vulnerable addresses are frozen in the future through a soft fork, users can submit STARK zero-knowledge proofs to unlock their assets when spending. This mechanism also provides a potential recovery path for wallets derived from BIP-32, but its implementation still relies on Bitcoin introducing STARK verification capabilities and gaining community consensus.

Researcher Dan Robinson from Paradigm proposed a new scheme called PACT (Verifiable Address Controlled Timestamp), aimed at protecting long-dormant bitcoins, including Satoshi's early addresses, from future quantum computing attacks.This mechanism allows users to prove their control over an address through a timestamp without the need to transfer assets or expose on-chain behavior. Once future quantum attacks occur, assets can be recovered in a quantum-resistant version of the Bitcoin network based on that proof. Compared to mandatory migration schemes (like BIP-361), PACT avoids the privacy exposure issues caused by actively transferring assets, providing long-term holders with a more flexible preemptive protection path.

Curve Finance officially announced that it is introducing a bad debt recovery mechanism based on on-chain market mechanisms, allowing CRV-affected users in certain lending markets with bad debts to choose different recovery strategies: directly selling their claims to exit, continuing to hold and wait for potential recovery, or providing liquidity to earn fees and incentives. The core of this mechanism is to establish a trading pool between crvUSD and the tokens of the affected claims, allowing bad debt claims to be priced in the market and creating liquidity, thereby providing users with an immediate exit channel instead of relying solely on the final liquidation results.It is reported that after the cryptocurrency market crash in October last year, some lending markets under Curve Finance experienced bad debt issues, with various liquidity pools being impacted by severe price fluctuations and liquidity contraction, leading to some deposit users facing withdrawal restrictions and asset losses.Curve stated that the recovery mechanism will not eliminate losses or guarantee recovery, but will gradually reflect risks and recovery expectations through a market-oriented approach. Additionally, if the governance layer distributes rewards through the veCRV incentive mechanism, it will help enhance liquidity depth, improve exit conditions, and strengthen market pricing efficiency.

According to Fox News, the Federal Bureau of Investigation (FBI) has collaborated with law enforcement agencies in Dubai, China, and Thailand to conduct a large-scale multinational joint law enforcement operation, successfully dismantling at least 9 overseas cryptocurrency scam centers, resulting in the arrest of 276 suspects, with the amount involved reaching millions of dollars.In this operation, the U.S. District Court in San Diego has filed federal telecommunications fraud and money laundering charges against 6 suspects, including individuals from Myanmar and Indonesia, whose scam organizations operated under names such as "Sanduo Group" and "Giant Company." Dubai police arrested 275 suspects, while the Royal Thai Police separately apprehended 1 fugitive.The aforementioned scam network employed a "pig butchering" technique, gaining the trust of victims through fabricated friendships or romantic relationships, luring them to transfer funds to fake cryptocurrency investment platforms, and then laundering the money and transferring it to criminal accounts.This operation aligns with the executive order signed by Trump on March 6, 2026, aimed at combating overseas criminal networks that exploit U.S. citizens. The FBI's "Operation Level Up" has notified approximately 9,000 victims, recovering about $562 million in losses for U.S. citizens. The FBI urges victims to report through the Internet Crime Complaint Center (IC3).

According to Jinshi reports, the IPO documents show that only by voting through the class of stock controlled by Musk can he be exempted from his board seat or executive position at SpaceX.

Andre Cronje stated in an interview with Cointelegraph that many DeFi protocols today are "no longer truly DeFi" and are more like "profit-driven companies operated by teams," as they generally rely on upgradable contracts, multi-signatures, off-chain infrastructure, and manual operational control.Cronje pointed out that the current industry is still overly focused on smart contract audits while neglecting operational risks that are closer to traditional finance (TradFi). He believes that recent attack incidents are not due to code vulnerabilities but stem from off-chain infrastructure, permission management, and social engineering attacks.The discussion arises from the recent frequent security incidents in DeFi. In April, protocols such as Flying Tulip, Drift Protocol, and Kelp encountered security events, with Drift and Kelp suffering losses of approximately $280 million and $293 million, respectively.In response, Flying Tulip has introduced a "Withdrawal Circuit Breaker," which can delay or queue withdrawal requests when unusually large withdrawals occur, allowing the team about 6 hours to respond. Cronje emphasized that this mechanism does not permanently freeze withdrawals but serves as a layer of protection within the security system.However, Michael Egorov holds a cautious attitude towards this. He stated that the circuit breaker itself could also become a new point of centralized risk. If control permissions fall into the hands of an attacker, the mechanism originally intended to protect the protocol could instead be used to freeze assets or directly transfer funds.Egorov believes that the long-term direction of DeFi should be to minimize human intervention and centralized permissions as much as possible, rather than adding more layers of manual control. "The security of DeFi comes from decentralization, not more human management."

OKX founder Star commented on OKX Boost while retweeting a post from RootData, stating that it is not just an incentive but also an early discovery and price discovery mechanism for new projects.In the tweet, RootData, in collaboration with OKX, released the first quarter report for OKX Boost, which shows that during the event, 23 projects distributed over $11 million in incentives, with an average of about 20,000 active participants per event and an average transparency score of over 70%. The listing rate for OKX spot or futures reached 45%.

Eric Trump, the second son of Trump, responded to Forbes' criticism of his significant arbitrage through the Bitcoin business, which harms MAGA investors. Eric stated that Forbes has become a disgrace in the journalism industry. Just over a year ago, his Bitcoin company American Bitcoin (ABTC) did not exist. 7 months and 25 days ago, ABTC was listed on Nasdaq, and today it holds over 7,000 Bitcoins, becoming the 16th largest publicly traded Bitcoin company in the world, backed by a massive cluster of nearly 90,000 mining machines and a computing power of 28 EH/s, using the highest quality energy in the United States.In just the fourth quarter, the Bitcoin on the balance sheet increased by 58%, with mining costs 53% lower than the market price of Bitcoin, and fourth-quarter revenue reached $78.3 million, a quarter-over-quarter increase of 22%. American Bitcoin can be said to be the company that has entered the "top 100" ranking in this field at the fastest speed, and it is actively expanding its mining scale every day. This narrative is strikingly similar to Forbes' rhetoric from years ago.According to previous reports from ChainCatcher, Forbes published an article criticizing Eric Trump's Bitcoin business as a disaster, pointing out that Eric Trump promotes his Bitcoin company American Bitcoin (ABTC) as a money printer, but in reality, it is just an arbitrage tool specifically designed to exploit those investors who support MAGA (Make America Great Again).

Pump.fun has completed the destruction of all previously repurchased PUMP tokens, involving an amount of approximately $370 million, accounting for about 36% of the circulating supply. Meanwhile, Pump.fun announced the launch of a programmatic buyback and burn mechanism, which will use 50% of net income over the next year to repurchase $PUMP on the open market and immediately burn 100%. This mechanism is executed through an irreversible smart contract, covering the revenue sources of Pump.fun's three major product lines: the joint curve, PumpSwap, and Terminal. The execution process includes four steps: fee aggregation, intermediate wallet integration, and buyback and burn, which can be tracked in real-time via fees.pump.fun.The remaining 50% of the income will be used to support business operations and ecological development, including team expansion, strategic investments, and marketing. Pump.fun stated that this move aims to address the community's concerns about the long-term value of the token and the transparency of the buyback mechanism, with the goal of continuously reducing the circulating supply.

According to a report by Jinshi citing Xinhua News Agency, Iranian Foreign Minister Amir-Abdollahian called on regional countries to establish a collective security mechanism "not subject to U.S. interference." During a meeting with Oman's Sultan Haitham in the capital Muscat, Amir-Abdollahian stated that Iran's experience shows that the U.S. military presence in regional countries only leads to turmoil and division in the region. He urged regional countries to jointly build an independent collective security mechanism without U.S. interference.

According to market news, Colombia and U.S. law enforcement agencies have jointly acted to successfully dismantle a transnational cryptocurrency money laundering network associated with the Mexican "Jalisco New Generation Cartel" (CJNG). Since 2023, this network has transferred over $190 million in illegal funds through cryptocurrency channels, seizing multiple crypto wallets and cash on site.Investigations show that the network commonly employs tactics such as fund splitting, decentralized transfers across multiple wallets, circulation across jurisdictions, and token swaps to evade tracking. Currently, authorities have not disclosed specific details regarding the cryptocurrencies involved, trading platforms, or the number of arrests, and the investigation is still ongoing.

According to Cointelegraph, local police in Spain seized two cryptocurrency cold wallets containing approximately 400,000 euros (about 467,000 dollars) in assets during an operation against illegal comic distribution platforms.The operation was carried out by the Almería police in Spain, who have arrested three suspects and dismantled what is known as the country's largest Spanish-language piracy comic website. It is reported that the platform has been providing free pirated content since 2014, primarily profiting through advertisements, with total revenue exceeding 4 million euros over the past decade. Notably, the cold wallets involved were hidden inside a thermometer in the wall. The police have not yet disclosed whether they have obtained the relevant private keys or access to the funds.

The local police in Spain seized two cryptocurrency cold wallets containing approximately 400,000 euros (about 467,000 dollars) in assets during an operation against illegal comic distribution platforms.The operation was carried out by the Almería police in Spain, who have arrested three suspects and dismantled what is known as the country's largest Spanish-language piracy comic website. It is reported that this platform has been providing free pirated content since 2014, primarily profiting through advertisements, with total revenue exceeding 4 million euros over the past decade. Notably, the cold wallets involved were hidden inside a thermometer in the wall. The police have not yet disclosed whether they have obtained the relevant private keys or access to the funds.

According to Cointelegraph, the decentralized finance platform Flying Tulip, founded by Andre Cronje, has launched a withdrawal circuit breaker mechanism that can delay or queue withdrawals during abnormal capital outflows to limit potential losses and buy time for the team to investigate.The operation of this mechanism varies across different products: in the Perpetual PUT product, withdrawals may be rolled back, and users will need to try again later; in ftUSD, withdrawals will enter a queue and can be claimed after a delay. Flying Tulip stated that this mechanism employs a "fail-open" design, meaning that transactions can continue to be executed even if the safety mechanism fails.

Vitalik Buterin posted on the X platform, stating that there is a significant risk associated with a single data source in light of the recent incident where weather sensors at Paris airport were interfered with, affecting the outcomes of prediction markets.He pointed out that for such data-driven prediction markets, at least the median of three independent data sources should be used as a reference to reduce the possibility of manipulation.

Paul Atkins, the Chairman of the SEC, delivered a speech on the first anniversary of his inauguration at the Washington Economic Club, stating that the SEC is advancing reforms to the regulatory framework for digital assets and incorporating it into the "A - C - T" strategy, which aims to modernize regulation, clarify regulatory boundaries, and reshape the rule system.Regarding crypto assets, the SEC has released a classification system for crypto tokens, dividing digital assets into five categories, four of which do not fall under securities. It indicated that the SEC is about to launch an "innovation exemption" mechanism to provide a limited framework for market participants to conduct tokenized securities trading on-chain in a compliant manner, and has initiated Project Crypto to adapt securities rules and regulatory systems to the trend of capital markets moving on-chain.Additionally, the SEC signed a Memorandum of Understanding (MOU) with the CFTC last month to unify key definitions, clarify regulatory jurisdictions, and coordinate joint regulatory matters, including digital assets. Paul Atkins also stated that the previous regulatory approach to crypto assets in the U.S. had led to innovation activities flowing overseas.