The Winklevoss twins withdrew 572 BTC from Gemini, worth approximately $42.77 million
Arkham monitoring data shows that Gemini co-founders Cameron and Tyler Winklevoss withdrew a total of 572 BTC from the exchange in two transactions—15 hours ago and 4 hours ago—valued at approximately $42.77 million on April 15th.
Their last major crypto transaction was over a month ago, when they deposited roughly $128.5 million worth of BTC into Gemini. Post that move, their Bitcoin balance dropped to 8,800 BTC, the lowest level they’ve held since 2012.
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Bitcoin developers propose BIP-361 to mitigate future potential quantum attack risks
On April 15, Bitcoin contributor Jameson Lopp and other cryptographers proposed a measure that could force Bitcoin holders to move their tokens to new post-quantum addresses—or face irreversible network-level freezing of their coins. Holders would technically still “own” these coins but lose the ability to transfer them.
This proposal is Bitcoin Improvement Proposal 361 (BIP-361), updated Tuesday in Bitcoin’s official proposal repository under the title “Post-Quantum Migration and Legacy Signature Deprecation.”
BIP-361 builds on BIP-360, which launched in February. BIP-360 is a soft fork (a network upgrade) that enables a new transaction type: “Pay to Merkelized Abstract Syntax Tree” (P2MR). This leverages Bitcoin’s Taproot (P2TR) framework but eliminates key path spending—removing an element widely seen as vulnerable to quantum attacks.
BIP-361 outlines the migration in three stages:
- **Stage A** (active for 3 years): Prohibits sending new Bitcoin to older, quantum-vulnera
5 minutes ago
ETH/BTC Exchange Rate Hits Near Two-Month High, Multi-Million Dollar Short Whale Loses $1.7 Million
April 15th: Per HyperInsight monitoring (via t.me/HyperInsight), the ETH/BTC pair has trended upward continuously, hitting a nearly 70-day high last night—breaking above 0.032 BTC (a roughly two-month peak).
On the Hyperliquid platform, the address tied to hedge trader BobbyBigSize holds a combined $34.6 million position in ETH shorts and BTC longs, with total unrealized losses across both positions expanding to ~$1.78 million.
Additionally, the address has a $12.45 million short position on HYPE (with $1.4 million in unrealized losses), a $3.8 million long position on SOL, and several other hedge positions.
Address: 0x7fdafde5cfb5465924316eced2d3715494c517d1
5 minutes ago
Stripe, Visa, and Standard Chartered's Zodia Custody Join Tempo as Validator Nodes
April 15th: Per an official Tempo announcement, payment giants Stripe, Visa, and Zodia Custody—Standard Chartered Bank’s digital asset custody arm—have officially joined as validator nodes on the Tempo Network. Tempo noted it will continue expanding its validator set and moving toward permissionless validation. Collectively, the three institutions process trillions of dollars in annual payments across nearly every country worldwide.
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Current mainstream CEX and DEX funding rate displays market still overwhelmingly bearish
April 15 – Per CoinGlass data, Bitcoin retraced after breaking above $76,000 yesterday, with current funding rates across major centralized (CEX) and decentralized (DEX) exchanges showing the market remains heavily bearish — and sentiment has even intensified compared to yesterday. Specific funding rates are detailed in the attached chart.
[BlockBeats Note: Funding rates are set by crypto exchanges to align perpetual contract prices with underlying asset values. This mechanism facilitates fund transfers between long and short traders (the platform does not charge this fee), adjusting traders’ holding costs or profits to keep contract prices close to the underlying asset’s price.]
**Rate Benchmark:**
- 0.01% = baseline
- >0.01% = bullish market
- <0.005% = bearish market
5 minutes ago
U.S. Former Treasury Secretary Yellen: Still Believe Fed Could Cut Rates Later This Year
April 15th — Former U.S. Treasury Secretary Janet Yellen said she still expects the U.S. could cut interest rates later this year, but oil price volatility spurred by tensions in Iran has cast a shadow over the outlook.
Yellen noted the supply shock is broad-based, hitting areas including gasoline, liquefied natural gas (LNG), fertilizers, food, shipping costs and semiconductors.
While not ruling out the possibility of rate hikes, she said stable long-term inflation expectations make that scenario currently unlikely. “I expect rate cuts could come by the end of this year — that’s entirely possible and the most likely outcome,” she added, “but many variables remain.”
5 minutes ago
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