Vitalik Buterin has confirmed that AI-assisted analysis used by Co-Invest CEO Franklyn Wang correctly identified his anonymous contribution to an Ethereum proposal.

The identification comes two weeks after Buterin publicly challenged whether current AI tools could pierce online anonymity.

Wang’s winning submission identified an anonymous rewrite of EIP-7503 by analyzing the way it explained mathematical and technical concepts.

“The doc was an anonymous EIP-7503 rewrite he’d hidden by writing it in Chinese and machine-translating it,” Wang wrote in a Monday X post after Buterin confirmed the result. “The tell wasn’t his words, it was his reasoning.”

Vitalik Buterin’s June 22 post challenging viewers to discover his anonymous writing. Source: Vitalik Buterin

Some of the crypto industry’s most prominent contributors, including Bitcoin creator Satoshi Nakamoto, have relied on pseudonyms to conceal their identities. Some analysts believe that if AI can reliably identify authors from their reasoning patterns, that would make anonymous technical contributions harder to sustain across open-source blockchain communities.

Related: AI agent development hasn’t accelerated as expected, Zuckerberg says

Buterin tests AI deanonymization

In a February paper, researchers from ETH Zurich and Anthropic claimed large language models have made online deanonymization practical at scale. 

The study found AI could identify pseudonymous online users by extracting identity-related information from unstructured text, searching for potential matches and reasoning over the most likely candidates, outperforming traditional deanonymization techniques.

“There have recently been claims that AI text analysis will make online anonymity untenable. So let me cannibalize a piece of my own anonymity to do an experiment,” Buterin said on June 22.

He confessed to publishing a document of “medium importance” to Ethereum at some point in the past decade under a different name.

“Find it,” he challenged.

Related: Yield Guild Games cuts 35 staff, shuts game publisher to focus on AI

Wang said that Co-Invest ranked Buterin as the most likely author of an anonymous December 2024 rewrite of EIP-7503, with roughly 20% confidence, which was about 10 times higher than the next candidate in its analysis of 27 documents.

Buterin later revealed he had written the anonymous rewrite in Chinese, translated it into English using Qwen 2.5 and manually corrected the translation in an attempt to disguise his prose.

“Notice that the stylistic hints that his AI picked up on were intellectual habits and style of math and algorithm explanation, which bypassed my obfuscation strategy (which only covered prose) completely,” Buterin wrote.

Lighter CEO Vladimir Novakovski said Monday he worked with Wang in a 2023 project using GPT-4 to try to identify Bitcoin creator Nakamoto by matching writing style in cryptography research, but said the effort failed to produce a high-confidence result.

According to Novakovski, Wang later applied a similar approach to Buterin’s anonymity challenge.

Magazine: Bitcoin slides to $58K, XRP hits $1 but onchain data promising: Market Moves

A New York lost-property lawsuit targeting dormant Bitcoin wallets has drawn a fresh filing from the Digital Chamber, a major blockchain industry trade association. In a Monday amicus brief, the group urged the court to reject claims that inactive self-custody wallets should be treated as abandoned property under state law.

The case, brought in late May by a claimant identified as “Noah Doe” and two Wyoming-based companies, seeks ownership of 39,069 dormant Bitcoin addresses. The addresses are reported to contain about 3.7 million BTC, valued at roughly $234 billion at the time referenced in the underlying reporting. Earlier coverage from Cointelegraph noted that the lawsuit could effectively become a test for how dormant or inactive crypto assets should be handled under traditional “lost property” frameworks.

Key takeaways

• The Digital Chamber’s latest amicus brief argues that classifying dormant self-custody wallets as abandoned property would create a “pervasive cloud on title” for crypto owners.
• The filing frames the issue as a threat to the core legal premise of digital property ownership, with potential ripple effects beyond crypto into traditional finance.
• Some wallets named in the lawsuit have already shown renewed activity, complicating assumptions about “dormancy” and control of assets.
• Even if the plaintiffs were to win legally, the private-key requirement remains a practical hurdle for transferring control of funds.

A trade association warns against “cloud on title”

According to the Digital Chamber, allowing the lawsuit’s theory to proceed would undermine widely accepted principles of how digital assets are owned and transferred. In its second amicus brief in the New York case, the organization opposed the plaintiffs’ attempt to establish ownership based on the addresses’ inactivity.

The trade association warned that treating dormant wallets as abandoned property would effectively cast uncertainty over self-custody holdings. The brief characterizes the potential outcome as a “pervasive cloud on title across self-custody wallets,” implying that investors and institutions could face heightened legal risk simply for keeping private keys and not moving funds for extended periods.

Digital Chamber also argued that a decision rooted in the plaintiffs’ approach could have “negative ripple effects” reaching traditional finance. The group’s point appears aimed at the broader market effects of uncertainty—particularly where regulated entities rely on stable, predictable legal definitions of ownership and control.

Digital Chamber describes itself as the oldest and largest digital asset trade association, representing more than 250 members that include exchanges, banks, investment firms, and other participants across the industry.

The dispute centers on dormant wallets and New York’s lost-property law

The lawsuit was filed in late May and targets 39,069 dormant Bitcoin addresses, according to the reporting cited in earlier coverage from Cointelegraph: New York lawsuit seeks ownership of 39,069 dormant Bitcoin addresses. The amicus brief arrives as the legal fight begins to take shape around the interpretation of New York’s lost-property statutes as applied to cryptocurrency held in self-custody.

Among the addresses named in the suit, the filing and accompanying discussion referenced estimates placing the total at 3.7 million BTC, with some wallet addresses allegedly linked by analysts to Bitcoin creator Satoshi Nakamoto. The earlier reporting that references a claim from Sani (founder of Timechain Index) is attributed in the source text to a post on X: according.

It’s important for readers to recognize what the legal process is actually testing. The argument is not simply about whether money can be recovered from inactive addresses, but about whether inactivity alone can trigger ownership claims under a state framework traditionally used for tangible property.

Renewed wallet activity challenges assumptions about “dormancy”

While the lawsuit proceeds, the real-world behavior of at least some listed addresses has shifted. According to analysis cited in the source text, some of the dormant Bitcoin wallets named in the case have begun moving funds.

Galaxy Digital head of research Alex Thorn, as quoted via an X post referenced in the original report, said at least 31 of the addresses moved 17,527 BTC in June. That compares with earlier activity where only five addresses reportedly transferred 4,834 BTC in February. The figures were attributed to Thorn’s monitoring: according to Alex Thorn.

The renewed activity has included notable cases such as the address “1KV47,” which reportedly transferred 30 BTC—worth about $1.88 million in the source text—on Saturday. Earlier coverage from Cointelegraph stated that this marked the wallet’s first movement in almost 15 years, since August 2011: Bitcoin address “1KV47” moved after nearly 15 years.

For investors and market participants, these developments matter because they expose a practical and conceptual mismatch: legal arguments that treat inactivity as a proxy for abandonment can collide with the reality that wallet “dormancy” may be temporary—or could change when private keys are used after long periods.

Private keys remain the gate to control

Even if the plaintiffs’ legal theory were to succeed, the question of control over the underlying Bitcoin remains central. The source text notes that it is unclear how the plaintiffs could gain control of the assets without possessing the private keys to the wallets.

That point effectively highlights the asymmetry between on-chain identifiers (addresses and balances) and off-chain control (private keys). Courts may determine legal ownership, but moving or spending Bitcoin still requires cryptographic authorization.

The case is also not proceeding unopposed. According to the source text, a pseudonymous defendant filed a notice of appearance and a motion to dismiss on Thursday, asserting that they control one of the dormant wallets named in the lawsuit. Earlier coverage from Cointelegraph references that dismissal effort: defendant dismiss New York lawsuit.

In practice, that kind of response could reduce the likelihood of any blanket “ownership transfer” outcome, forcing the court to grapple with ownership claims at the level of individual wallets and the rights of those claiming control.

What to watch next

With the Digital Chamber urging rejection on principle and some named wallets already showing movement, the case may hinge on how the court interprets abandonment versus ownership in the context of self-custody. The next key developments to monitor are the court’s handling of motions to dismiss and whether other defendants challenge the plaintiffs’ ability to prove control beyond the addresses themselves.

EU lawmakers on Tuesday adopted a position paper on digital assets, setting out their view on how the bloc should approach crypto regulation after the rollout of its Markets in Crypto-Assets (MiCA) framework.

The paper calls on the European Commission to assess whether activities including decentralized finance (DeFi), crypto lending and borrowing, staking and non-fungible tokens (NFTs) should be brought more clearly into the EU’s regulatory perimeter. It also urges consistent application of MiCA across member states and warns against national rules that could fragment the bloc’s digital asset market.

The vote turns the report, “Digital assets – challenges for the competitiveness and integrity of the European Union’s financial system,” into Parliament’s formal policy position on digital assets, but it does not directly amend MiCA or create new legal obligations for crypto firms.

MiCA’s transitional period ended on July 1, requiring crypto-asset service providers that fall under the framework to obtain bloc-wide or national authorization to continue operating across the European Union.

The EU Parliament overwhelmingly approved its digital asset policy stance. Source: European Parliament

EU lawmakers look beyond MiCA 

The report reflects growing pressure in Brussels to address digital asset activities that remain outside MiCA’s current scope.

While MiCA established licensing and conduct rules for crypto-asset service providers and issuers of certain tokens, lawmakers have continued to debate how the framework should treat DeFi, staking, lending, NFTs and tokenized financial assets.

Related: EU crypto rulebook faces enforcement challenge as MiCA transition ends

The EC has already been reviewing whether MiCA should be expanded. In May, it opened a public consultation that sought feedback on potential changes to the framework, including whether additional crypto activities should be covered and whether MiCA’s restrictions on interest-bearing stablecoins should be revisited.

The Parliament report approved Tuesday also takes a more supportive tone toward tokenization and euro-denominated stablecoins, arguing that digital assets could support the competitiveness of EU financial markets if regulated consistently across the bloc.

Magazine: Bitcoin decouples from tech stocks, Ether eyes ‘selling wave’: Market Moves

Cointelegraph is committed to independent, transparent journalism. This news article is produced in accordance with Cointelegraph’s Editorial Policy and aims to provide accurate and timely information. Readers are encouraged to verify information independently.

Bitcoin BTC$63,520.34 fell on Tuesday after chalking out a six-day winning streak, the longest since March. The gains, in any case, looked fragile when viewed through the lens of several indicators.

The most widely followed is the Coinbase Premium, which tracks the difference between bitcoin’s price on U.S.-based exchange Coinbase (COIN) and Binance. It has now been negative for fifty straight days, according to data source Coinglass.

That means for close to two months, BTC has been cheaper on Coinbase than Binance, which doesn’t operate in the U.S. The discrepancy is an indicator of relatively weak demand in the world’s largest economy, a message underscored by the eight straight weeks of net outflows from U.S. spot exchange-traded funds. Historically, bull runs have featured consistently positive Coinbase Premiums.

Another concerning trend is seen in Japan, where bond yields just can’t stop rising. The 10-year rose to a 30-year high early today, lifting borrowing costs in the U.S., U.K. and Germany. A continued upswing, particularly in Treasury yields, could create a headwind for BTC.

While seasonality supports continued recovery, it’s the ETF flows that matter the most, according to analysts.

Coinbase announced it secured a United Kingdom investment services license, allowing the platform to expand its local offering beyond spot trading and into products like equities and derivatives. 

On Tuesday, Coinbase said the authorization would enable UK users to trade financial instruments alongside crypto on its platform. Institutional and advanced traders would gain access to perpetual futures tied to crypto, equities and commodities, while retail would be able to access equities. 

The company said the approval marks its largest UK product expansion since entering the market and advances its vision of an “everything exchange” that combines crypto and traditional financial assets under a single platform. Coinbase said future rollouts would remain subject to regulatory permissions and UK market rules.

FCA research cited by Coinbase estimates that around 7 million UK adults hold crypto assets. A quarter of UK adults who do not currently own crypto said they’re more likely to participate under clearer regulation.

The authorization also comes ahead of the UK’s new crypto regime, which will begin accepting applications in September before taking effect in October 2027. It will require crypto trading platforms, custodians, stablecoin issuers, staking providers and other intermediaries to obtain FCA authorization.

The FCA did not comment before publication.

UK retail crypto derivatives remain restricted 

The differing product offerings reflect FCA rules governing retail access to crypto investment products. In 2021, the Financial Conduct Authority (FCA) banned the sale, marketing and distribution of derivatives and exchange-traded notes (ETNs) referencing certain crypto assets to retail consumers.

Related: Coinbase, Kraken and OKX move to swoop up EU users affected by MiCA restrictions

The FCA has since reopened retail access to certain crypto ETNs, with the change taking effect on Oct. 8, 2025. 

As a result, retail consumers can access crypto ETNs only if they are traded on an FCA-approved, UK-based Recognised Investment Exchange, while financial promotion rules and consumer protection requirements apply. However, the FCA said its ban on retail access to crypto derivatives remains in place.

Magazine: Bitcoin decouples from tech stocks, Ether eyes ‘selling wave’: Market Moves

Non-custodial multichain wallet Ctrl Wallet is winding down its services after a recent security incident affecting some Cardano-related activity. The wallet’s operators say users have until Aug. 3, 2026 to move funds out of the app.

In an announcement posted on Tuesday and reiterated in a separate blog update, Ctrl Wallet said the application will be taken offline for most operations starting Aug. 3, while retaining the ability for users to export their recovery phrases. The service will also be removed from app and browser extension stores, and new downloads will stop immediately.

Key takeaways

• Ctrl Wallet will stop allowing sending, receiving, swapping, and other in-app actions after Aug. 3, 2026.
• Users will still be able to export recovery phrases, but there is no migration token or airdrop planned.
• The shutdown follows a security issue reported by Ctrl Wallet on June 23 that prompted a temporary “maintenance mode.”
• Ctrl Wallet is advising users to transfer assets before the deadline and to beware of fake sites or social media posts offering incentives.
• The wallet supported thousands of networks and was connected to Cardano’s ecosystem via a multichain setup previously transitioned under Emurgo’s umbrella.

App functionality set to end, recovery-phrase export remains

Ctrl Wallet told users that from Aug. 3, 2026, core wallet operations inside the app will be unavailable. According to the company’s update, functionality will remain limited to exporting users’ recovery phrases, which are typically 12-word or 24-word seed phrases.

As part of the deprecation process, Ctrl Wallet said it will remove the app from both application and browser extension stores and halt downloads right away. That means users who rely on the wallet for day-to-day access will need to prepare ahead of time to avoid getting locked out of routine transfers.

When the deadline arrives, Ctrl Wallet’s guidance is straightforward: users should use the exported phrase to access funds in another compatible wallet provider. The company said users can import their recovery phrase into wallets including MetaMask, Trust Wallet, and Phantom.

What users should do before Aug. 3

Ctrl Wallet recommended that users export their recovery phrases and transfer assets to another exchange or wallet before Aug. 3. The operator’s stated reasoning is operational: after that date, the wallet will not support standard activity such as sending and receiving.

In addition, Ctrl Wallet emphasized that there will be no token-based migration or “replacement” distribution event. The wallet also warned users to be cautious if they encounter impersonation attempts—such as posts or websites promising compensation or incentives—associated with the shutdown.

For investors and traders, the practical implication is that operational risk shifts from security concerns inside the wallet to execution timing: once app actions are disabled, users must rely on other infrastructure to move assets. That makes it especially important to complete exports and transfers well in advance of the cutoff date.

Shutdown follows June security incident and Cardano-related exposure

Ctrl Wallet said it reported a security issue on June 23, involving some Cardano wallets on its platform. At the time, the wallet stated it entered a temporary “maintenance mode” intended to protect user assets while engineering work restored full functionality.

The new deprecation timeline comes shortly after that period and indicates that the issue—or the broader system response to it—has culminated in an exit from ongoing wallet operations. While Ctrl Wallet did not outline every technical detail in the user-facing update provided in the article, it did connect the deprecation to its decision to protect assets and then ultimately stop allowing on-platform activity.

The wallet’s broader ecosystem reach may also affect users’ choices for migration. Ctrl Wallet said it supported over 2,500 blockchain networks, which can be convenient for multisystem users—but also means many holders may be managing assets across chains and need to validate that their chosen replacement wallet fully supports the same assets and networks.

Ctrl Wallet’s Emurgo/SecondFi transition adds context

Ctrl Wallet previously announced a structural change on April 29, saying it would operate under the Emurgo umbrella and that its multichain architecture would continue inside the SecondFi wallet.

SecondFi is described as a self-custodial platform built on Cardano and was developed by Emurgo, the “for-profit arm of Cardano.” The wallet had been positioned as a continuation of Ctrl Wallet’s approach following that transition, and the SecondFi rebranding from the Yoroi wallet was reported as occurring in April 2026.

Separately, a vulnerability in SecondFi led to attackers draining funds on June 24, according to earlier coverage linked in the source material. That incident was reported to have resulted in an estimated loss of around 16 million ADA (about $2.4 million at the time). Days later, SecondFi published a recovery path for affected wallet addresses and said emergency measures secured roughly 129 million ADA transferred to an independent third-party custodian for verification and recovery.

For Ctrl Wallet users, the bigger takeaway is that the timeline of the shutdown overlaps with heightened attention on Cardano wallet security. Even though Ctrl Wallet’s June 23 issue was described as affecting “some Cardano wallets on the platform,” the shutdown now forces users to operationally exit the service regardless of whether they experienced the earlier vulnerability directly.

With Aug. 3 approaching, users should watch for any final instructions from Ctrl Wallet about phrase export availability and removal timing, and should be prepared to act quickly if they need to switch to another wallet provider. The lack of a migration token or airdrop underscores that the exit is handled by self-custody workflows—exporting seed phrases and moving funds—rather than by a platform-led replacement process.