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HTX Community Spring Creation ContestBitcoin Up 2 Weeks: Beginning or End?Post To Earn BonusWinklevoss Capital moves $43 million in bitcoin to custody after hitting lowest balance since 2012 Some 572 

Winklevoss Capital moves $43 million in bitcoin to custody after hitting lowest balance since 2012


Some 572 bitcoin worth $42.77 million moved from a Gemini hot wallet into wallets owned by Winklevoss Capital and custody wallets in the past 24 hours, according to Arkham Intelligence data, the first significant transfers into the fund's addresses in over a month.

The transfers came in two batches. One of 372 $BTC and one of 200 $BTC about 11 hours later. Both moved from addresses tagged by Arkham as belonging to the crypto exchange to addresses tagged as Winklevoss Capital and Gemini Custody.

Winklevoss Capital now holds 9,328 $BTC worth $689 million across 128 tracked addresses, up from about 8,800 $BTC after a $128.5 million deposit into Gemini roughly a month ago that brought holdings to their lowest level since 2012.

It also holds 70,588 ETH worth $163.7 million, bringing its total tracked portfolio to approximately $853 million, the Arkham data show.

The onchain data shows the direction of movement, not the intent. The transfers could reflect new purchases, internal rebalancing between Gemini's exchange and custody infrastructure, or a partial reversal of last month's deposit.

Gemini Space Station (GEMI), founded by Tyler and Cameron Winklevoss, has faced mounting financial pressure this year.

Bloomberg reported last week that the company has lost more than half its market value in 2026, cut 30% of its workforce and exited markets including the U.K., EU, and Australia.

The Winklevoss brothers have roughly $330 million in outstanding bitcoin-denominated loans to the company, and one idea being discussed internally involves converting that debt into equity, Bloomberg said.

Winklevoss Capital moves $43 million in bitcoin to

US financial giant Goldman Sachs is looking to launch a unique Bitcoin ETF.Goldman Sachs ETF Trust has filed for SEC approval of the Goldman Sachs Bitcoin Premium Income ETF.The fund is designed to de

US financial giant Goldman Sachs is looking to launch a unique Bitcoin ETF.Goldman Sachs ETF Trust has filed for SEC approval of the Goldman Sachs Bitcoin Premium Income ETF.The fund is designed to deliver steady income to investors while reducing upside exposure to Bitcoin's price. The ETF will invest at least 80% of its net assets in instruments that provide exposure to Bitcoin, and it will not hold BTC directly. These include Spot Bitcoin ETPS, options on Spot Bitcoin ETPs and options on Bitcoin ETP Indices. To create income, the fund plans a dynamic options overwrite strategy, selling call options on bitcoin-related ETPs and collecting premiums. The overwrite level will range from 40% to 100% of its bitcoin exposure depending on market conditions. The fund would face significant bitcoin price volatility and other risks, including limited upside from the call-writing approach.Generated Image: DALLE3

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A group of developers has proposed a new Bitcoin Improvement Proposal (BIP-361) to help safeguard Quantum-vulnerable coins on its blockchain. The new update, proposed by Cypherpunk Jameson Lopp and fi

Developers Propose New Upgrade to Freeze Quantum-Exposed Bitcoin, Including Satoshi’s 1 Million Stas

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Bitcoin Up 2 Weeks: Beginning or End?HTX Community Spring Creation ContestClaim1,200 USDT in the Monthly Creation Challenge Market Updates: Ethereum Near $2,400 Sparks Diverging Whale Bets; HSBC Pilot

Market Updates: Ethereum Near $2,400 Sparks Diverging Whale Bets; HSBC Pilots Tokenized Deposits on Canton Network; Adam Back Denies Satoshi Claim Ethereum briefly approached the $2,400 mark before pulling back, setting off sharply contrasting moves among large investors.

At the local peak, Billy Luedtke, CEO of Intuition, moved to lock in gains. He sold 3,285 ETH at $2,372.24, securing roughly $7.79 million, according to Arkham Intelligence.

Meanwhile, this sale was part of a broader exit strategy that began on March 8, during which he offloaded 8,771 ETH worth $19.14 million at an average price of $2,182.

At the same time, another large wallet (0x455... A433E) pivoted away from Ethereum, rotating capital into Bitcoin. The holder swapped 2,831 WETH for 90.46 WBTC in a transaction valued at $6.74 million.

Market Updates: Ethereum Near $2,400 Sparks Diverg

HTX Community Spring Creation ContestUnlock Your Personal HTX Airdrop Now Blockchain Forum 2026, MoscowWall Street behemoth Goldman Sachs filed an application on Tuesday for a Bitcoin Premium Income e

Wall Street behemoth Goldman Sachs filed an application on Tuesday for a Bitcoin Premium Income exchange-traded fund (ETF), marking one of its most direct moves yet into the cryptocurrency investment space.The proposed Goldman Sachs Bitcoin Premium Income ETF aims to gain exposure by investing in exchange-traded products that hold Bitcoin, as well as options linked to those products and related index-tracking instruments, as per the Tuesday filing.With Goldman Sachs managing about $3.65 trillion in assets under management, the filing marks its latest entry into the “Bitcoin ETF game,” according to Bloomberg Senior ETF Analyst Eric Balchunas, who reacted on X with surprise at the investment bank’s move.Interesting side note: this is a '40 Act filing so it has to use a Cayman Subsidiary to get around regulatory limitations re holding commodities. BlackRock meanwhile has a '33 Act product that is similar. Goldman may sense opp to leap frog them and/or is prob hearing from their… pic.twitter.com/KOoCK5sT6UUnlike spot Bitcoin ETFs from firms such as BlackRock and Fidelity, which directly hold bitcoin and closely track its price, Goldman’s proposed fund would operate one step removed—seeking exposure through other investment vehicles rather than holding the asset itself.“Since the value of Spot Bitcoin ETPs fluctuates with the price of Bitcoin, the Fund will gain exposure to both the increases and decreases in the price return of Bitcoin experienced by the Spot Bitcoin ETPs in which the Fund invests,” Goldman wrote in the filing.Goldman’s proposed Bitcoin ETF will also aim to generate income by selling call options on Bitcoin ETPs, earning premiums in return, according to the prospectus.“As the seller of these options, the fund receives a premium from the buyer of the options. The Fund expects that, under normal circumstances, the overwrite level will be between 40

Wall Street behemoth Goldman Sachs filed an applic

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On April 15, according to monitoring by Lookonchain, trader 0x049b has once again gone long on BTC and ETH with 20x leverage, currently holding long positions worth $19.92 million in BTC and ETH respe

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Japan’s e-commerce and fintech firm, Rakuten Group has announced Ripple’s native token XRP as an official payment option. This opens the floodgates to 44 million users who will have the option to pay 

Japanese E-Commerce Company Rakuten Announces XRP as Payment Option

HTX Community Spring Creation ContestUnlock Your Personal HTX Airdrop Now Blockchain Forum 2026, Moscow Bitcoin developers are trying to build quantum defenses. Your coins could pay the price. Bitcoin

Bitcoin developers are trying to build quantum defenses. Your coins could pay the price.

Bitcoin was built on a promise that no one can touch your coins without your private key. No government, no bank, nobody.

That promise is now, for the first time in Bitcoin's 16-year history, being challenged from the developer community itself, as a part of measures to build defenses against future quantum computers that could compromise Bitcoin's blockchain and steal your coins.

The proposal

Jameson Loop, one of the outspoken bitcoin contributors, and other cryptographers, have ﻿proposed a move that could force bitcoin holders to migrate their coins to new quantum-resistant addresses or face having their coins frozen permanently by the network itself. In that scenario, holders would technically still “own” the coins, but lose the ability to move them.

It is called Bitcoin Improvement Proposal (BIP)-361 and was updated in Bitcoin's official proposal repository Tuesday with the title "Post Quantum Migration and Legacy Signature Sunset."

This comes as a recently released Google report warned that a sufficiently powerful quantum machine could require significantly less firepower to compromise the Bitcoin blockchain than initially estimated. This prompted some observers to cite 2029 as the quantum deadline for bitcoin.

To understand the need to freeze coins, you need to know what it is protecting against.

Every Bitcoin wallet is secured by a form of cryptography called ECDSA, or Elliptic Curve Digital Signature algorithm. Think of it as a lock on your wallet. When you set up a wallet, two keys are generated: Private key, which is a unique password used to prove that you own the coins you are spending. Then there is a public key derived from the private key. This public key helps receive funds, verify transaction signatures, and ensure security without revealing the o

Bitcoin developers are trying to build quantum def

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HTX Community Spring Creation ContestBitcoin Up 2 Weeks: Beginning or End?Post To Earn BonusBitcoin ETFs post $412M in inflows as Goldman Sachs files for BTC ETF US-listed spot Bitcoin exchange-traded

Bitcoin ETFs post $412M in inflows as Goldman Sachs files for BTC ETF

US-listed spot Bitcoin exchange-traded funds bounced back to notable daily inflows as Goldman Sachs entered the Bitcoin ETF sector.

Spot Bitcoin (BTC) ETFs recorded $411.5 million inflows on Tuesday, marking the second-largest daily inflows in April so far, according to SoSoValue data.

The fresh inflows pushed total net flows for 2026 into positive territory at roughly $245 million year-to-date, while total assets under management surged above $96.5 billion, the highest since mid-March.

The gains came as Goldman Sachs, once a major Bitcoin critic, filed with US securities regulators to launch a Bitcoin-linked ETF. The move follows Morgan Stanley’s launch of its Morgan Stanley Bitcoin Trust ETF (MSBT) last Wednesday.

Bitcoin ETFs post $412M in inflows as Goldman Sach

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