BitcoinWarnings

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Bitcoin Core, Satoshi Nakamoto's full-node implementation of the Bitcoin Protocol, has increased the much debated OP_RETURN Limit.
OP_RETURN Limit:- In a move that has settled the dust on the long-standing debate, the Bitcoin Core development team has confirmed plans to release version 30 of its reference implementation this October.
The upgrade will be featuring a landmark change to the OP_RETURN data limit. Under the new rules, users will be able to embed up to 4 MB of arbitrary data in a single OP_RETURN output – up from the longstanding 80-byte ceiling imposed in 2014.
The update represents one of the most significant technical shifts in Bitcoin’s two-year-old block size regime. It has also reignited debates around blockchain utility and efficiency.
What’s the update Bitcoin Core is Bringing
OP_RETURN outputs allow users to include metadata such as messages, timestamps, or small files directly in the blockchain without creating spendable UTXO entries.
Prior to Core 30, these outputs were capped at 80 bytes, limiting on-chain inscriptions to ultra-small payloads. In practice, the limit has driven many projects to hack around the constraint or resort to off-chain storage solutions.
However, with the proposed merger, the Version 30 will effectively remove the strict 80-byte barrier. It will instead be permitting OP_RETURN fields to grow up to the maximum block size (nearly 4 MB), provided operators run default settings.

Rationale Behind the Expansion by Bitcoin Core
Proponents argue that enlarging OP_RETURN capacity will streamline certain data-anchoring use cases. Developers can embed entire documents, digital certificates, or decentralized identifiers directly on-chain without off-chain workarounds.
Projects can store larger media assets (e.g., images, small audio clips) in OP_RETURN outputs, broadening Bitcoin’s role beyond pure value transfer.
Gloria Zhao, a core contributor to Bitcoin Core, explained in a X post on June 9, “This update modernizes Bitcoin’s data carrier functionality and better aligns on-chain capabilities with evolving developer needs, all while preserving decentralization. Operators displeased with the change can still configure custom limits, though these options may be phased out in later releases”.
Why Critics are Calling the Update as “Spam”
The proposal has reignited a longstanding ideological split between “progressive” and “conservative” factions within Bitcoin’s developer and node-operator communities.
Critics caution that lifting the OP_RETURN limit could pave the way for blockchain “spam” as more data can be infiltrated on the blockchain. This can undermine network performance and contravene the protocol’s original peer-to-peer monetary vision. A vocal opponent on social media warned, “If you still run Core, I very strongly urge you to switch to Bitcoin Knots or not update Core—Bitcoin Core is now fully malicious”.
I fear we’re paving the way for blockchain spam—why allow megabyte-scale data pushing through every node?” posted long-time node-operator LukeDash on Twitter.
However, supporters counter that expanded data capacity remains voluntary and that the majority of node operators prioritize utility and innovation.

Satoshi Action Fund Stops Funding Bitcoin Core
Amid the ongoing controversy surrounding the Bitcoin Core upgrade, Satoshi Action Fund (SAF) has stopped its funding to the Bitcoin Core.
Dennis Porter, co-founder of the fund said, “My faith in their work is now broken.”.
He publicly stated that he personally helped raise over $200,000 for Bitcoin Core developers through the Fund.
SAF’s departure represents a $200 000 funding hole for Core which is about 18 % of what MIT committed back in 2019. Though it is a fraction of total ecosystem grants but still a meaningful loss of discretionary developer funding.

Implications for Bitcoin’s Evolution
With Bitcoin Core powering over 90 percent of full nodes on the network, any protocol-level change carries substantial weight.
The OP_RETURN expansion could enable new classes of on-chain applications. These can range from decentralized content anchoring to complex multi-party contracts—without necessitating secondary layers.
Yet the debate highlights broader tensions: how to balance Bitcoin’s foundational focus on monetary security with burgeoning demands for programmable blockchain features.
As Core 30’s release date approaches, all eyes will be on node-operator adoption rates. It also remains to be seen whether this update settles or further inflames the discourse on Bitcoin’s purpose and trajectory.

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Bitcoin could be headed for a 75% correction, Peter Brandt warns.
Wall Street legend Peter Brandt, who correctly predicted the S&P 500 rally, recently shared an alarming warning about the fate of Bitcoin.
Brandt compared Bitcoin's price cycle over the past year to the 2011-22 cycle and wondered if the cryptocurrency is following the previous pattern and headed for a 75% correction.

It seemed surprising to many members of the Crypto Twitter community that the asset that hit its all-time high (ATH) of $111,970.17 only on May 22 could be poised for a correction.
Brandt's X post invited some curious and some mocking comments, but the veteran trader doubled down on his analysis. He shared his previous blog post dated Apr. 26, 2024, to claim that the king coin has fallen prey to what he calls "exponential delay" in bull cycles.
Comparing the previous bull cycles during 2009-11, 2011-13, 2015-17, and 2018-21, Brandt wrote:
"80% of the exponential energy of each successful bull market cycle has been lost."
Bitcoin was trading around $64,000 when he wrote the post on Apr. 26, 2024.
Since then, a whole lot of overwhelming developments have taken place, such as President Donald Trump announcing the creation of a strategic Bitcoin reserve, securities violations cases getting dropped against several leading crypto trading exchanges, etc. In fact, Bitcoin hit its new record high only last month.
But such a positive turn of events didn't deter Brandt from sounding the alarm, as he seemed quite convinced of his analysis.
As per Kraken's price feed, Bitcoin was trading at $108,577.02 at press time, only around 3% lower than its ATH.

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Bitcoin, the first and best-known cryptocurrency, was created in 2009 by an unknown individual or group using the pseudonym Satoshi Nakamoto. It is a decentralized digital currency that enables users to make secure, peer-to-peer transactions without needing a middleman or central authority, such as a bank or government. Due to the freedom it offers, Bitcoin's value has experienced significant volatility since its inception.
Often referred to as "digital gold," Bitcoin (BTC) is currently sitting at a value of over $60,000 (October 2024). The cryptocurrency market has also expanded significantly, with the total market value of all cryptocurrencies surpassing $1 trillion.
However, quantum computing poses a potential threat to Bitcoin. This new type of computing harnesses the laws of quantum mechanics to solve problems that are too complex for classical computers. Quantum computing has advanced rapidly and aims to tackle problems of much greater complexity than even supercomputers can handle. Due to its highly sophisticated computational power, quantum computers could eventually compromise the cryptographic standards that secure Bitcoin.
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Understanding Bitcoin's Security Framework
Bitcoin's emergence has revolutionized the financial ecosystem. Its decentralized nature, powered by blockchain technology, has set the standard for the entire digital currency ecosystem. At the core of this revolutionary system is cryptography, which ensures its trustworthiness and resilience.
Bitcoin employs Elliptic Curve Cryptography (ECC), a public-key cryptographic system that uses two keys: a public key for encryption, which is freely available, and a private key for decryption, kept secret by the user. These keys function as digital signatures, uniquely linked to individual Bitcoin holdings and serving as verifiable proof of ownership. Only the holder of the private key can authorize transactions, preventing unauthorized access.
While no digital system is entirely immune to vulnerabilities, Bitcoin's decentralized structure and its consensus mechanism, Proof of Work (PoW), provide robust security against attacks. In this mechanism, miners compete to solve complex mathematical problems, ensuring that only valid transactions are added to the blockchain. This distributed consensus prevents any single entity from compromising Bitcoin's security and helps ensure that all transactions are recorded transparently and securely.
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What Makes Quantum Computing Different?
Quantum computing, an entirely different approach to computing, employs the laws of quantum mechanics to solve problems beyond the reach of conventional computers. Quantum Physicist Shohini Ghose compares quantum computing to light bulbs and candles, stating, "The light bulb isn't just a better candle; it's something completely different." While quantum computers are not universally faster, they excel at solving certain highly complex problems, such as modeling atomic behavior in molecules for new drug development or detecting subtle fraud patterns in financial transactions.
Quantum computing shares some features with classical computing, such as circuits and logic gates, but it relies on unique principles like:
Qubits: Quantum bits, or qubits, are the fundamental units of quantum computing. Unlike binary bits, which can only be 0 or 1, qubits can exist in multiple states simultaneously.
Superposition: Qubits can exist in a combination of states, called superposition, allowing quantum computers to explore complex, multidimensional computational spaces.
Entanglement: Quantum entanglement links qubits so that the measurement of one affects the others, even over great distances.
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The Quantum Threat Timeline for Bitcoin
Imagine a future where ultra-fast computers can break nearly all existing encryption, threatening the security of digital assets like Bitcoin. Quantum computers have the potential to crack current encryption standards, using algorithms like Shor's algorithm, which could theoretically solve the mathematical problems that underpin Bitcoin's cryptography in seconds, rather than the billion years it would take classical computers.
Although quantum technology is still in its early stages, with existing systems having high error rates, researchers are working towards building fault-tolerant, error-corrected quantum computers. To protect Bitcoin from these future threats, the underlying technology will need to be upgraded to quantum-resistant algorithms. The National Institute of Standards and Technology (NIST) has been working on identifying such algorithms since 2016, exploring options like hash-based, lattice-based, and multivariate polynomial-based cryptographic solutions that can withstand both classical and quantum attacks.

The Post-Quantum Bitcoin World
Quantum computers are a double-edged sword: they promise solutions to complex problems but also threaten current digital security. Bitcoin, which relies on ECC for its security, is vulnerable to quantum attacks. However, while the development of quantum computers capable of breaking Bitcoin is still years away, the time to upgrade Bitcoin's encryption to withstand quantum threats is now.
Will quantum computers break Bitcoin? The answer is, eventually, yes—if large quantum computers are built. But as of now, Bitcoin has time to adapt. As the quantum era approaches, the crypto world will need to evolve. Rest assured, Q-Day is on the horizon, and the preparations are already underway.
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Net outflows from Bitcoin ETF products reached $129 million for the week ending June 6. Fidelity’s FBTC alone accounted for $168 million in redemptions. Other spot Bitcoin ETF issuers reported mixed activity, with some recording marginal inflows that failed to offset the broader sell-off. Market observers linked the trend to rising macroeconomic uncertainty and traders locking in profits ahead of inflation-related data. Concerns over near-term price resistance also weighed on sentiment.
Wise Crypto provides insightful crypto market analysis and updates. According to Wise, BTC faces resistance at $106,265, with key support at $103,700. Around 95% of current BTC holders purchased below this level, suggesting high sell pressure near resistance.
Ethereum ETFs Gain Momentum as Investors Rotate
Ethereum ETF inflows surged to $281 million during the same week, outperforming Bitcoin ETF flows by a wide margin. All nine spot Ethereum ETFs registered positive inflows. This marked the fourth straight week of net capital addition, reinforcing growing institutional interest in the Ethereum ecosystem. Investors appear to be rotating funds from Bitcoin to Ethereum, seeking opportunities amid Ethereum’s growing use in DeFi and staking. The market reacted favorably to clarity around Ethereum’s ETF approval path and expectations for better yield-related structures. Industry analysts noted that Ethereum’s consistent inflows reflected strong conviction. Unlike Bitcoin ETFs, Ethereum ETFs showed no signs of outflow pressure during the same period.
BTC Price Movement Signals Uncertainty Ahead of Token Unlocks
As per Wise data, Bitcoin rebounded to $106,263, reflecting 4.7% growth. The price faces immediate resistance at $106,265. A breakout above this level could push BTC toward $108,000. If selling resumes, BTC may test strong supports at $103,700 and $95,600, where 95% and 85% of holders bought in, respectively. Traders remain cautious due to the technical setup and the market’s reaction to broader token unlocks. The coming week will witness significant token unlocks exceeding $341 million in total. One-time unlocks include APT, STRK, IMX, SEI, and MOVE, while daily unlocks from tokens like SOL, WLD, and AVAX may add sell pressure. These unlocks can impact short-term liquidity and increase volatility across altcoins. Analysts suggest close monitoring of large-cap tokens like SOL and DOT during this period.
Short-Term Outlook Hinges on Bitcoin ETF Sentiment and Unlock Impact
Bitcoin ETF flows remain under scrutiny as markets approach key macroeconomic and crypto-specific triggers. With Ethereum ETFs seeing four weeks of consistent inflows, institutional preference may be tilting toward Ethereum in the short term. The contrast between Bitcoin ETF outflows and Ethereum ETF inflows highlights a diverging investor approach. Market participants will also closely track the $341 million worth of token unlocks this week. Liquidity shifts may impact prices and influence near-term strategies across major crypto assets.
In addition, BTC’s technical setup presents a potential breakout or breakdown scenario, contingent on broader sentiment and ETF fund movement. A sustained breakout above $106,265 could renew bullish momentum for Bitcoin. Conversely, failure to hold key supports could lead to sharper declines. As capital rotation continues between Bitcoin and Ethereum ETFs, and major unlocks enter circulation, traders remain alert to rapid market developments.
Summary :
Bitcoin ETFs recorded $129 million in outflows, with Fidelity’s FBTC contributing $168 million.
Ethereum ETFs saw $281 million in inflows, marking four straight weeks of positive institutional interest.
Over $341 million worth of tokens, including APT, SOL, and AVAX, are set to unlock in the coming week.
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The current US administration is crypto friendly, and Bitcoin and altcoins are seeing support in 2025. Could they go even higher, or should you wait for a dip to buy? Bitcoin is notoriously volatile, which can make it difficult to judge where the crypto is going next, but there are several strategies to help investors decide when to invest.
To determine if it is a good time to invest in Bitcoin, investors should pay attention to the market and listen to the experts, as generally speaking, Bitcoin's price action is sentiment-driven. To keep on top of big news in the sector, follow our frequent Crypto Market Updates, which drop several times a week.
There are also different technical indicators that crypto traders use to help them decide if now is the time to buy or sell Bitcoin. We run through some popular indicators below.
For example, the Relative Strength Index (RSI) is a technical indicator used to gauge the momentum of a cryptocurrency's price. It fluctuates on a scale from 0 to 100. By analyzing the magnitude of recent price changes relative to the previous 12-month period, the RSI helps traders identify whether a cryptocurrency is potentially overbought or oversold. An RSI above 70 often signals an overbought market, while an RSI below 30 suggests an oversold market.
Another metric to consider is the MVRV Z-score, calculated by subtracting the "realized" value of Bitcoin, which is an average of the prices at which each Bitcoin was last moved, from the current market value. This is then divided by the standard deviation of the Bitcoin market cap.
This indicator helps identify when market value deviates strongly from realized value, which could show the market is at a turning point. A score above 7 likely indicates that Bitcoin is overvalued, meaning it could be due for a correction, while a score below 0 suggests that Bitcoin is undervalued, meaning it could be a good buying opportunity.
Finally, to gauge the overall market sentiment, investors can look at the Fear & Greed Index. This index provides a snapshot of how optimistic or fearful the market is about Bitcoin, with high readings potentially signaling overenthusiasm and a possible correction.
While it's useful to learn these technical indicators to help you trade, it is important to remember that there's no such thing as a guaranteed investment, especially when it comes to cryptocurrencies. On the one hand, there's virtually no chance that Bitcoin will experience a crash to zero. On the other hand, we also cannot take for granted that its value will continue to climb.
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1. Expanding the central bank's powers:
Ukrainian deputies (led by Yaroslav Zelenskyak) presented a bill (No. 13356) on June 10 to amend the Ukrainian central bank law.
The law aims to grant the central bank the legal authority to add digital assets such as Bitcoin to its national reserves, alongside gold and foreign currencies.