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Google Adds Zero-Knowledge Proofs to Wallet for Age Verification

Google is rolling out a privacy-focused upgrade to its Wallet service that uses zero-knowledge proof (ZKP) technology for age verification, per a release.
The company said that the dating app Bumble, among others, will be one of the first partners to use this system. Bumble will use digital IDs issued through Google Wallet for user verification, while ZKPs will handle age confirmation.
The move allows users to prove they’re old enough to access certain apps or websites without revealing their birthdates or personal identifying data. ZKP is one of the biggest use cases for blockchains apart from real-world assets and payments, though it has yet to find popularity outside of niche circles.
Google said the system was developed in response to the growing number of services requiring age checks, from dating platforms to e-commerce and social media. “We wanted to develop a system that not only verifies age, but does it in a way that protects your privacy,” it said.
The ZKP cryptographic method lets someone prove a fact (like being over 18) without revealing how they know it or any more information.
Traditional ID-based age verification methods, in contrast, often require revealing government-issued documents or date of birth, creating privacy and data security risks.
This is done using a complex blockchain-based system that runs a condition (such as age) in an encrypted form, generating a proof, and letting an outside system verify it using public keys, ensuring privacy without exposing the underlying information.
The implementation is now live in Google Wallet and works across mobile devices and apps using Google’s Digital Credential API, which means it can be embedded into third-party sites and platforms.
ZK-based tokens are up 1.7% on average in the past 24 hours, CoinGecko sector data shows. The sector could be one to keep an eye on as giants like Google adopt ZKP technology — bringing demand to the privacy-first sector that has generally fallen out of investor interest in past years.
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CME Group Crypto Derivatives Volume Soars 129% in April With ETH Leading the Charge

CME Group’s cryptocurrency derivatives market posted a steep increase in trading activity in April, reaching a new average daily volume (ADV) of 183,000 contracts worth $8.9 billion in notional terms, the firm reported.
That marks a 129% jump compared to the same month last year, suggesting growing institutional interest in crypto markets.
Ether led the growth. CME’s ether futures ADV surged 239% to 14,000 contracts, while micro ether futures climbed 165% to 63,000. Micro bitcoin futures followed with a 115% increase to 78,000 contracts.
The CME’s bitcoin and ether futures contracts have a larger notional value, of 5 BTC and 50 ETH, respectively. Micro contracts, meanwhile, enable more precise trading, representing just 0.1 of each cryptocurrency.
The exchange operator had already reported record cryptocurrency derivatives volumes in the first quarter of the year. For the month of April, its overall ADV reached a record 35.9 million contracts, rising 36% year-over-year.
Ether, after significantly underperforming the wider cryptocurrency market, rose just 1.1% over the past 30 days, while the price of bitcoin rose 15.8%. The broader crypto market, measured through the coinDesk 20 (CD20) index, saw a 12.1% rise.
Uncategorized
State of Crypto: IRS Departures

The IRS, alongside many other regulators, has been pretty active in the crypto world over recent years. On Friday, two directors left.
You’re reading State of Crypto, a CoinDesk newsletter looking at the intersection of cryptocurrency and government. Click here to sign up for future editions.
Deferred resignations
The narrative
Over 20,000 IRS employees accepted deferred resignation offers made by the Donald Trump administration, including two directors tasked with overseeing digital assets rulemaking.
Why it matters
Raj Mukherjee and Seth Wilks went on paid administrative leave Saturday, though individuals familiar with the situation told CoinDesk that their departures should not indicate any change in the IRS’ approach to crypto rules.
Breaking it down
Wilks, the IRS’ executive director of digital asset strategy and development, and Mukherjee, the executive director of the digital assets office, accepted deferred resignation offers and left the IRS on Friday, two individuals told CoinDesk.
They joined thousands of other IRS employees who accepted the offer, which puts them on paid administrative leave until September.
Both of CoinDesk’s sources said Wilks and Mukherjee left ahead of expected widespread layoffs at the IRS.
Stories you may have missed
- Inside Movement’s Token-Dump Scandal: Secret Contracts, Shadow Advisers and Hidden Middlemen: CoinDesk’s Sam Kessler published a blockbuster investigation into Movement Labs, its recent agreements with a market maker and how its current internal investigation into whether it was misled into signing an agreement which gave that market maker control over a significant number of its tokens came to be.
- Fed Joins OCC, FDIC in Withdrawing Crypto Warnings for U.S. Banks: The Federal Reserve withdrew its crypto guidance advising banks to get pre-approvals before entering crypto activity (and other details).
- TRUMP Coin Jumps 70% on President’s Dinner Event for Top Token Holders: The 220 individuals who hold the most TRUMP tokens will be able to attend a dinner with Donald Trump in May. The news sparked a surge in the token’s price.
- Trump’s Truth Social Mulls Launching Token for Subscriptions in Latest Crypto Push: Truth Social, the social media company owned by Donald Trump’s Trump Media & Technology Group, said in a shareholder letter that it was exploring launching a utility token.
- Bitcoin-Friendly Poilievre Loses Seat as Carney’s Liberals Win 2025 Election: Canada voted, and the Liberal Party is forming a minority government with Mark Carney staying on as the Prime Minister. Conservative Party leader Pierre Poilievre lost his seat.
- Unicoin CEO Rejects SEC’s Attempt to Settle Enforcement Probe: Unicoin rejected a settlement negotiation meeting with the U.S. Securities and Exchange Commission, CEO Alex Konanykhin told shareholders in a letter.
- Senator and Ex-Bridgewater CEO McCormick Invests More in Bitcoin as Bill in Works: Pennsylvania Republican Dave McCormick, who won his seat in last year’s election and now sits on the Senate Banking Committee, disclosed investing up to $450,000 in Bitwise’s Bitcoin exchange-traded fund (ETF).
- New SEC Chief Atkins Says Agency Doesn’t Have to Wait to Impose Crypto Policy: Paul Atkins, who was sworn in as SEC chair last week, said the agency was considering special-purpose broker dealers and custody policies at the latest crypto roundtable hosted by the agency, and that it may not need to wait for new laws to act.
- FBI Says Americans Lost $9.3B to Crypto Scams in 2024: The FBI’s latest Internet Crime Complaint Center report said Americans lost $9.3 billion to crypto crimes last year, a 66% year-over-year rise. Total losses added up to $16.6 billion, and the overall year-over-year increase was 33%.
DOJ’s mixers
Prosecutors and defense attorneys in the Department of Justice’s case against the developers of Samourai Wallet filed a joint memo asking the federal judge overseeing the case to pause it for a few weeks while the DOJ considers a request from the defense to drop it entirely.
An attorney for Roman Storm, asked if the Tornado Cash developer’s team had made a similar request, declined to comment.
This same week, a federal judge ruled that the U.S. Treasury Department cannot sanction Tornado Cash again, saying the Office of Foreign Asset Control did «not suggest they will not sanction Tornado Cash again, and they may seek to ‘reenact precisely the same [designation] in the future.'»
Last month, Leah Moushey, an attorney with Miller & Chevalier, told CoinDesk that the judge may decide to reject OFAC’s argument that the case was moot because of previous cases where agencies tried to keep the ability to redesignate someone after a court case was resolved.
The judge indeed appeared to buy into that view in his ruling.
This week
Tuesday
- 14:00 UTC (10:00 a.m. ET) The House Financial Services Committee held a subcommittee hearing titled «Hearing Entitled: Regulatory Overreach: The Price Tag on American Prosperity.»
Thursday
- 19:00 UTC (3:00 p.m. ET) Avraham Eisenberg, who was arrested and tried for his $110 million exploit of Mango Markets, was sentenced to just over four years in prison after pleading guilty to possession of child sexual abuse material. During the sentencing hearing, the federal judge overseeing the case said he was open to a retrial on the Mango Markets-related charges.
Elsewhere:
- (The New York Times) The Times dug into Donald Trump’s entry and deepening connections into the crypto industry.
- (The Washington Post) The Post published a list of the top donors to Trump’s inauguration fund. Included in this list: Ripple Labs ($4.9 million donated), Robinhood Markets ($2 million), Fred Ehrsam, Circle, Coinbase, Crypto.com, Galaxy Digital, Ondo Finance, Kraken and Solana Labs ($1 million each). Several of these companies have since filed to go public, seen the SEC drop lawsuits and investigations against them or announced partnerships with Trump-affiliated businesses.
- (Politico) The Senate is likely to vote on stablecoin legislation before the end of May, Majority Leader John Thune said at a Republican conference lunch.
- (The New York Times) The Times also published a deep dive into Tether and its own deepening ties to Washington, D.C.
- (Reuters) North Korean employees set up corporate entities in the U.S. to target crypto firms.
- (The New York Times) This is a very bonkers story of some folks who stole some crypto. Just read it.
- (Politico) This is a fascinating read by Politico’s Victoria Guida about Canadian Prime Minister Mark Carney’s experience and views.
- (404 Media) Researchers claiming to be part of the University of Zurich set up a «large-scale experiment in which they secretly deployed AI-powered bots into a popular debate subreddit» to see whether AI would change people’s minds. These bots used fake backstories and made over 1,700 comments. Reddit said it was issuing «formal legal demands» to the researchers in response.
- (The New York Times) Roger Ver, i.e. «Bitcoin Jesus,» hired Roger Stone to try and lobby for legal changes that might help Ver, who is accused of tax charges.
- (Semafor) A number of prominent venture capitalists and tech executives, including crypto company executives, have private group chats that Semafor reports show a growing political divide.
- (Wired) Spain and Portugal suffered a massive blackout earlier this week. Wired dug into some of the technical issues at play.
If you’ve got thoughts or questions on what I should discuss next week or any other feedback you’d like to share, feel free to email me at nik@coindesk.com or find me on Bluesky @nikhileshde.bsky.social.
You can also join the group conversation on Telegram.
See ya’ll next week!
Uncategorized
IRS’ Crypto Leads Are Leaving the Agency After Accepting DOGE Deals

The IRS lost two key directors working on crypto initiatives, Seth Wilks and Raj Mukherjee, on Friday after they accepted deferred resignation offers directed by the Department of Government Efficiency.
Wilks and Mukherjee, who both went to the IRS from the crypto industry, are technically still employees with the IRS for the next few months but they are on paid administrative leave as of Friday afternoon, two people familiar with the situation told CoinDesk. President Donald Trump’s administration, through DOGE, offered deferred resignations to a wide array of federal employees earlier this year.
Wilks, who was previously a vice president at TaxBit, and Mukherjee, who was previously ConsenSys and Binance.US’ head of tax, both joined the IRS Digital Asset Initiative in February 2024, and were tasked with helping the IRS build a better approach to crypto taxation, including leading the agency’s efforts to build reporting, compliance and enforcement programs for crypto and coordinating with the industry. They worked on an updated 1099-DA tax form shared last summer to aid U.S. persons with filing taxes tied to digital asset transactions.
The pair also oversaw parts of the agency’s efforts to draft tax rules for the crypto industry.
The IRS finalized one such rule, imposing certain data collection requirements on decentralized finance (DeFi) brokers, in the waning days of the former Joe Biden administration. This rule was overturned by Congress earlier this year under the Congressional Review Act in a joint resolution signed by Trump.
Wilks was the IRS’ executive director of digital asset strategy and development, while Mukherjee was the executive director of the digital assets office.
Both people who spoke to CoinDesk noted that the two officials had accepted voluntary buyouts but that these deferred resignations came ahead of expected cuts to IRS staff.
More than 20,000 IRS employees signed up for the deferred resignation program, the New York Times reported last month, with these employees being put on administrative leave through September.
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