Why Are Bitcoin Mining Companies Transitioning Collectively? AI, Privacy Chains, and Protocol Layer Reconstruction

Bitcoin mining companies are undergoing a process of identity redefinition. In April 2026, the Bitcoin 2026 Conference in Las Vegas became a concentrated showcase of this trend: leading mining firms are no longer solely defined by their hash rate scale, but are beginning to systematically engage in protocol development, network security governance, cross-chain mining pool operations, and even AI infrastructure. Among them, MARA Holdings announced the establishment of a non-profit foundation, directly funding quantum-resistant research at the Bitcoin protocol layer—this is the most signaling event in this round of strategic upgrade for mining companies. Behind this reflects a more fundamental proposition: when the Bitcoin network faces multiple long-term challenges—such as profit compression during halving cycles, quantum computing threats to protocol security, and an immature transaction fee market—those enterprises deeply reliant on the Bitcoin ecosystem are shifting from “network users” to “network builders.”

MARA Foundation Launches, Mining Companies First to Incorporate Protocol Security into Corporate Strategy

On April 27, 2026, MARA Holdings officially announced the establishment of the MARA Foundation at the Bitcoin 2026 Conference in Las Vegas, positioning it as an independent non-profit organization focused on five key areas: long-term security of the Bitcoin network (including quantum resistance research), open-source technology development, global promotion of self-custody tools, public policy advocacy, and multilingual education for developers and policymakers.

The foundation simultaneously launched a $100k community grant program, where the global Bitcoin community can vote online and on-site to select the final recipients from three candidate non-profits—256 Foundation (funding open-source mining hardware and software development), Libreria de Satoshi (multilingual Bitcoin technical education), and SateNet (Bitcoin-driven community wireless networks). Voting is open until 3 p.m. Pacific Time on April 29.

MARA’s Chairman and CEO Fred Thiel made a noteworthy value judgment in his statement at the conference: “Bitcoin is the most important decentralized system ever created, but its future cannot be guaranteed.” He described the Bitcoin network as “a public utility owned by no one but relied upon by everyone,” adding that “decentralization does not mean it runs automatically; it means responsibility is dispersed.”

Halving Cycle and Industry Transformation Pressure Collide

To understand the deeper motivation behind the establishment of the MARA Foundation, it is necessary to trace the structural changes the mining industry has experienced over the past two years.

In April 2024, Bitcoin’s fourth halving reduced the block reward from 6.25 BTC to 3.25 BTC, directly halving the portion of miner revenue from system subsidies. By 2026, industry pressures further compounded: industry observations show that in Q1 2026, the total network hash rate experienced a rare decline for the first time in six years, approximately 4%, with a significant part of this due to miners shifting hash resources toward AI/HPC data centers. Meanwhile, older S19 series miners are nearly phased out from the open market, and the new generation S21 XP-level ASICs (with efficiency below 15 J/TH) have become the new survival threshold.

More profound changes include that from 2025 to early 2026, several top publicly listed mining companies, including MARA, sold large amounts of Bitcoin holdings to generate cash flow—either to pay down debt or to invest in AI infrastructure transformation. For example, MARA sold over 15,000 BTC for about $1.1 billion in March 2026, aiming to reduce debt and expand into digital energy and high-performance computing infrastructure. CleanSpark also sold 97% of its Bitcoin production in February 2026, with the proceeds directed toward AI/HPC data center development.

Against the backdrop of profit compression during halving cycles and hash power diversion to AI transformation, MARA’s decision to “re-inject” part of its resources into the Bitcoin protocol via a foundation marks a significant strategic divergence for mining companies.

Data and Structural Analysis: Two Sides of a Coin

As of April 29, 2026, Bitcoin’s trading price is $77,325.1, with a 24-hour trading volume of $649B, a market capitalization of $1.49 trillion, and a market share of 56.37%. (Data sourced from Gate.io market data.)

From a market structure perspective, several notable features are emerging:

Disparity between hash rate and price. Since September 2025, Bitcoin’s total network hash rate has experienced a significant decline, estimated by third parties at about 28.8%. Meanwhile, Bitcoin’s price has increased by 5.76% over the past 30 days and 4.68% over the past 7 days. Hash rate declining while price remains relatively stable suggests some hash power is strategically exiting—not due to forced shutdowns, but actively shifting toward higher-profit sectors like AI/HPC.

Divergence in holdings among top miners. MARA, one of the largest Bitcoin hash rate providers globally and the fourth-largest corporate Bitcoin holder, holds about 38,689 BTC. Meanwhile, Riot Platforms has continued to sell—selling 3,778 BTC in Q1 2026, far exceeding its mining output of 1,473 BTC for that quarter. Its holdings have shrunk from 19,233 BTC a year ago to 15,680 BTC. The “hoarding” versus “liquidation” strategies among miners are forming a stark contrast.

Security budget issues enter decision-making agendas. Bitcoin’s security budget—the total economic incentives paid to miners, including the current 3.25 BTC block subsidy plus transaction fees—is a long-discussed but rarely prioritized issue at the enterprise level. The MARA Foundation explicitly includes “supporting the development of a healthy and robust transaction fee market” as a core mission, indicating this issue has moved from academic discussion into resource allocation at the corporate level.

Public Opinion and Market Perspectives: How Does the Market View Miners’ “Non-Core Business”?

The announcement of the MARA Foundation immediately sparked diverse interpretations within industry analysis circles.

Positive signal—miners start “paying taxes” for the network. A mainstream interpretation likens this to “user payments”: as entities that derive the most economic benefit from the Bitcoin network, miners’ feedback to the protocol ecosystem is seen as both commercially reasonable and morally justified. Fred Thiel emphasized in his statement, “We benefit from the network, and the MARA Foundation is a concrete practice of corporate contribution and fulfilling decentralized responsibilities.”

Strategic hedging—packaging short-term pressures with “long-termism.” Some analysts suggest that MARA’s large-scale sale of Bitcoin followed by the foundation’s establishment may be a branding narrative adjustment: as the enterprise shifts core resources from mining to AI infrastructure, maintaining its voice and presence in the Bitcoin community via a foundation is strategically rational. However, this view currently lacks direct internal confirmation from MARA and remains speculative.

Industry demonstration effect—potentially forcing other miners to follow. Several industry observers point out that if MARA’s model proves effective through community voting and grant execution, other top miners may face pressure of “why only MARA is doing this.” Especially companies like Foundry and CleanSpark, which are also deeply embedded in the Bitcoin ecosystem, warrant ongoing attention for their subsequent actions.

Industry Impact Analysis: Strategic Divergence of the Top Three Miners

The establishment of the MARA Foundation is not an isolated event. When viewed within the collective strategic shifts of leading miners in 2026, three distinct paths become clearer.

MARA: Upstream penetration, involvement in protocol governance. Using the foundation as an organizational vehicle, MARA is shifting from a “hash rate service provider” to a “co-builder of the protocol ecosystem.” Its funding scope covers quantum resistance research (BIP 360/PQ wallets), open-source development, Layer 2 scaling solutions, and self-custody tools—effectively covering multiple critical weak layers of the Bitcoin protocol stack.

CleanSpark: Mining as a springboard, with ultimate goal in AI infrastructure. CleanSpark CEO Matt Schultz elaborated a “two-step” strategy at Bitcoin 2026: first deploying Bitcoin mining infrastructure to help local power companies digest idle generation capacity, then establishing partnerships to develop AI data centers. With this approach, CleanSpark won a 100 MW project bid in Cheyenne, Wyoming, defeating a trillion-dollar tech giant.

Schultz also issued a warning: transforming Bitcoin mining farms directly into AI data centers increases construction costs from about $500k per MW to $10–12 million per MW—more than 20 times higher; labor needs per 10 MW increase from about 1 person to roughly 8. Additionally, cloud providers may impose strict delivery terms, with penalties that could offset a year’s worth of contract revenue. These constraints make the transformation more complex than it appears.

Foundry: Focused on compliant mining pools, extending into multi-chain infrastructure. Under Digital Currency Group (DCG), Foundry operates the world’s largest Bitcoin mining pool, accounting for about 31% of the total Bitcoin hash rate. In April 2026, Foundry launched a Zcash institutional-grade mining pool, which quickly accounted for nearly one-third of Zcash’s new network hash rate. CEO Mike Colyer described this as a response to increasing institutional demand for privacy coins, with built-in KYC/AML checks, transparent payout calculations, and compliance reporting tools.

Unlike MARA’s upstream protocol extension, Foundry’s approach is lateral cross-chain expansion—using its reputation and institutional relationships built through Bitcoin mining pools to replicate its hosting and pool services on other PoW networks.

Multi-Scenario Evolution: Quantum Threat, Security Budget, and Miner Landscape

Based on the above facts and analysis, the following scenarios focus on the possible evolution of three key variables over the medium term.

Scenario 1: Quantum resistance research moves from periphery to mainstream—can MARA’s early advantage be realized?

Currently, Bitcoin core development’s progress in post-quantum cryptography remains in “early exploratory” stages. According to Chaincode Labs’ May 2025 analysis, all post-quantum initiatives for Bitcoin are still at informal discussion and private research levels. Meanwhile, external environment changes are accelerating: Coinbase’s Quantum Advisory Committee issued a position paper in April 2026 warning that once sufficiently powerful quantum computers capable of breaking elliptic curve cryptography are built, the entire blockchain security foundation will be impacted, and migration windows are narrowing. BIP 360 entered testnet in early 2026 via BTQ Technologies, and BIP 361 further proposes freezing old coins that cannot migrate to quantum-safe addresses.

Pathway: If quantum computing breakthroughs occur earlier than the community’s consensus—McKinsey and some academic roadmaps suggest cryptographically capable quantum computers could appear between 2027 and 2030—MARA’s early investments in PQ wallets and BIP 360 might translate into de facto influence over protocol standards. Conversely, if the quantum threat window proves distant, the foundation’s quantum resistance research may remain at the academic funding level, with limited protocol-level impact.

Scenario 2: Can transaction fee markets shoulder the security budget—structural constraints of mining business models.

Bitcoin’s block subsidy will continue to decay and eventually reach zero. At that point, the network’s security incentives will rely solely on transaction fees. This structural constraint is not new but becomes more urgent amid ongoing hash power diversion to AI. MARA’s pledge to support “building a healthy and robust fee market” currently involves funding open-source development, Layer 2 scaling, and user experience improvements—indirect demand-side measures rather than direct incentive restructuring.

Pathway: If Layer 2 ecosystems achieve large-scale adoption within the next two years, on-chain transaction demand could grow significantly, boosting total fee revenue. If on-chain activity underperforms expectations, fee markets may fail to compensate for subsidy reductions, putting ongoing pressure on miners’ business models and further incentivizing AI transformation. This creates a tension: as miners shift resources to AI, the remaining high-quality hash power on Bitcoin diminishes; fewer miners mean higher fees are needed to incentivize remaining hash power; and changes in hash power concentration could raise security concerns.

Scenario 3: Reshaping the top miner landscape—competition and integration among three models.

MARA (upstream protocol involvement), CleanSpark (mining-to-AI transition), and Foundry (compliant multi-chain pools) exemplify three typical strategic directions in 2026. Their evolution paths in the medium term differ in profit structure and risk profile.

The table below summarizes key attributes of these three models:

Pathway: Each model has rational business logic and uncertainties; short-term advantages are not clear-cut. Medium-term variables to watch include: if Bitcoin prices enter a prolonged downturn, CleanSpark’s AI path may show stronger resilience due to revenue diversification; if Bitcoin enters a new bullish cycle, MARA’s asset holdings and protocol influence could be amplified; if cross-chain mining demand persists and privacy coin regulation clarifies, Foundry’s multi-chain pool could become a new industry standard. In reality, the most likely outcome is a marginal convergence of these models—MARA already ventures into AI/HPC, CleanSpark does not abandon mining, and Foundry’s core remains Bitcoin pools. The so-called “strategic divergence” is more about resource focus and narrative framing than mutually exclusive choices.

Conclusion

Mining companies are no longer just mining companies. When MARA injects resources into protocol R&D via a foundation, when CleanSpark builds a gradual transition bridge between mining farms and AI data centers, and when Foundry replicates compliant pool models on new blockchains, a common underlying logic is emerging: in this industry, relying solely on block subsidies and transaction fee growth is no longer sustainable for long-term survival. Those capable of reassembling hash assets, energy infrastructure, and compliance capabilities into higher-dimensional strategic assets are defining the next decade of the Bitcoin ecosystem.

But all strategic layouts ultimately face two fundamental questions: can the long-term security of Bitcoin be maintained under the dual pressures of halving cycles and quantum threats? Will miners’ diversification weaken their vested interests in the Bitcoin protocol, thereby undermining community confidence in the “miners as guardians” narrative? The answers to these questions are not contained in any single article’s conclusion but lie in every resource allocation decision made by industry participants over the next three years.