DeCenter โ€“ Blockchain and Bitcoin
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DeCenter is the #1 blockchain community in Russia with over 75 000 experts. And this is our channel for English-speaking members.

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๐Ÿ–ฅ The largest public US miner MARA Holdings reported a loss of $1.7 billion for Q4 2025 โ€” compared to a profit of $528 million a year earlier.

The main impact came from the revaluation of Bitcoin reserves amid the falling exchange rate; while hashrate grew to 66.4 EH/s, mining decreased, and the cost of electricity per BTC increased to $48,611.

Despite the weak report, shares rose by more than 15% after the announcement of the launch of a joint AI project with Starwood Capital Group for the construction of data centers with a capacity of up to 2.5 GW.

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๐Ÿณ What percentage of a portfolio in BTC is recommended on Wall Street:

๐Ÿ”ด Fidelity โ€” 2โ€“5%
๐Ÿ”ด Bank of America โ€” 1โ€“4%
๐Ÿ”ด Morgan Stanley โ€” 0โ€“4%
๐Ÿ”ด BlackRock โ€” 1โ€“2%
๐Ÿ”ด WisdomTree โ€” 0.5โ€“1.5%
๐Ÿ”ด JPMorgan Chase โ€” 0.5โ€“1%

In general, large financial institutions view Bitcoin as a small diversification addition to a portfolio, not its foundation.

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๐Ÿ’ธ PayPal launches "stablecoin builder", together with MoonPay, they introduced PYUSDx โ€” a platform for issuing their own dollar stablecoins based on PYUSD.

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๐Ÿคฃ South Korea's tax office published the seed phrase of a confiscated wallet โ€” from which $4 800 000 in crypto was quickly withdrawn, after initially depositing some ETH for fees.

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๐Ÿ“‰ Today, the USA and Israel launched strikes on Iran โ€” the crypto market reacted with a fall as usual.

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๐ŸŽฒ Today, on Polymarket, an incredibly lucky trader surfaced: the account went "all-in" on markets with the outcome "US will strike Iran before March 1" โ€” and hit the deadline exactly.

The bet closed literally a day before the attack, so the odds were astronomical โ€” and someone's inside information (or incredible luck) turned into a very large profit.

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๐Ÿ“Š By the end of February, Bitcoin fell by 15% โ€” the fifth negative month in a row.

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๐Ÿ‡ฎ๐Ÿ‡ท Iran's state television announced the death of Ayatollah Ali Khamenei, who had led the country for 37 years.

Donald Trump stated that Iran "got hit hard," calling the event "a great day for peace," and expressed the opinion that the negotiation process could now proceed more easily.

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๐Ÿคฃ A Slovak developer shoved a 66 KB image directly into a Bitcoin transaction โ€” without Taproot, without OP_RETURN, and without all the "restrictions" that BIP-110 proposes.

Inside is a TIFF with a crying Luke Dash Jr. (one of the main proponents of BIP-110) and subtle trolling of the idea of fighting "spam" at the consensus level.

The experiment showed a simple thing: if someone wants to write something to the blockchain, they will find a way โ€” a soft fork is not a panacea.

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๐ŸŽฒ Three linked wallets earned $2 350 000 in one month (1, 2, 3) profit by betting on Polymarket only on whether the BTC price would go up or down.

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๐Ÿช™ The restaurant chain Steak โ€™n Shake has started paying employees a bonus in BTC โ€” a fixed $0.21 per hour of work.

This is one of the first such programs in the U.S., aimed at integrating cryptocurrency into payroll.

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๐Ÿ’Ž Against the backdrop of intensifying geopolitical tension, gold confidently broke the mark of $5400.

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๐Ÿ”ฎ Users of Kalshi suddenly found themselves in the red after the platform, for ethical reasons, canceled the market related to the "resignation" of Iran's supreme leader **Ali Khamenei**.

Trading was frozen amidst reports of his death, and the CEO promised to roll back trades and compensate fees, stating that the platform does not allow profiting from anyone's death.

Despite assurances, some traders have already complained about losses โ€” the prediction market once again reminded that even "bets on politics" can end with an unexpected stop.

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โ›”๏ธ The community within a day ยซburiedยป the idea of former Mt. Gox CEO rewriting the Bitcoin code to return 79,956 BTC (over $5 billion at current prices) โ€” Mark Karpeles proposed to "move" the coins to creditors, but developers and even some of those affected said a firm "no".

The argument is simple and strict: if you rewrite the rules once for $5 billion โ€” then the principle "your keys = your money" will cease to be law.

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๐Ÿ‹ Strategy bought an additional 3015 BTC at an average price of $67,700 per 1 BTC โ€” now the company's balance is 720,737 BTC, bought for $54.77 billion at an average price of $75,985.

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๐Ÿฟ Nasdaq is entering the forecasting market and plans to launch binary options on the Nasdaq 100 index.

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๐Ÿ‡ฎ๐Ÿ‡ท Cryptocurrency outflow from Iran's largest exchange Nobitex increased by 700% immediately after the US and Israel attack.

It is worth noting that in 2025 Nobitex processed $7.2 billion, and the exchange's audience exceeds 11 million people.

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๐Ÿ‡น๐Ÿ‡ท In Turkey are preparing to introduce a 10% tax on cryptocurrency income โ€” the bill has already been submitted to parliament by the ruling party.

Platforms will be required to withhold tax quarterly from client profits, regardless of their status and residency, and the president will have the right to vary the rate from 0% to 20% depending on the asset type and ownership conditions.

A separate fee is provided for the providers themselves โ€” 0.03% on each transaction.

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๐ŸŽฐ Pumpโ€คFun is no longer just about launching shitcoins โ€” now you can trade third-party tokens inside.

They added WBTC (Wormhole), ETH (Wormhole), USDC, PUMP, GIGA, PENGU and other coins.

The more assets in the app, the fewer reasons to close it. Gambling is now non-stop ๐Ÿšฌ

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๐Ÿฆ„ New York Court rejected a class-action lawsuit against Uniswap โ€” the platform was accused of scammers launching scam tokens and deceiving users through it.

The court ruled that the protocol itself is not responsible for the quality and integrity of projects built on its basis.

The proceedings lasted four years โ€” and this decision became an important precedent for the entire crypto industry.

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๐Ÿ•Š White hat hacker returned $1.84 million out of $2.26 million stolen during the hack of the decentralized lottery Foom Cash โ€” he found a critical error in the protocol and managed to freeze part of the funds on the Base network, for which he received a reward of $320,000.

The vulnerability arose due to a missed "shuffling" stage for applications, which allowed the specialist to falsify data and declare himself the winner.

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