Two major moves are reshaping the Zcash mining landscape. Fortitude Mining, affiliated with Digital Currency Group, acquired a 9.4% stake in HeartSciences to enable its merger target to sustain operations pending the shareholder vote. Simultaneously, Cypherpunk Technologies purchased the world’s largest Zcash mining fleet for $33.33 million, strengthening the speculative appeal around the privacy protocol.
🔑 Key Takeaways
- Fortitude Mining purchased 9.4% of HeartSciences for $999,998 via a private placement of 411,522 shares at $2.43
- DCG will hold approximately 95% of voting interests in the merged entity; HeartSciences shareholders retain 5%
- Cypherpunk acquired a 4.2 GSol/s mining fleet, representing 18% of Zcash hashrate, payable in warrants
- Zcash mining generates $450 per MW/h versus $223 for AI colocation and $133 for Bitcoin mining
- Merger closing is targeted for H2 2026; failure would result in HeartSciences liquidation
The Fortitude–HeartSciences Combination Aims for Zcash Mining IPO
The proposed business combination between Fortitude Mining and HeartSciences would provide Digital Currency Group (DCG) with a public listing vehicle for its Zcash mining operations. HeartSciences, a Nasdaq-listed company, received a capital injection from Fortitude to fund operating expenses while awaiting shareholder approval of the merger.
The investment was made on August 12 through a private placement of 411,522 HeartSciences common shares at $2.43 per share, representing a 22% premium to the day’s closing price. The total amount disbursed by Fortitude was $999,998.46, according to a beneficial ownership report filed with the SEC.
The structure differs from borrowing: Fortitude purchased common shares of the target company, acquiring a direct stake before shareholders vote on the business combination. Since the placement occurs outside the agreed exchange ratio formula, the million dollars finance HeartSciences equity without increasing the consideration payable to Fortitude’s existing equity holders upon closing.
« The net proceeds of the placement would be applied to operating expenditures. This capital injection allows HeartSciences to fund its operating expenses prior to the closing of the proposed business combination. »
HeartSciences SEC Filing
Proposed Interest Distribution After Merger
| Party | Estimated Voting Interest | Economic Interest |
|---|---|---|
| DCG (via Fortitude) | ~95% | ~95% |
| HeartSciences Equity Holders | ~5% | ~5% |
This disparity reflects that Fortitude contributes Zcash mining activity while HeartSciences provides the listing vehicle. As of August 20, the preliminary proxy still contained blank fields for the special meeting date and record date. The companies target closing during the second half of 2026, but this remains a target window and not a firm commitment.
Liquidation Risk if Merger Fails
The proxy warns that if the merger fails, HeartSciences may have limited ability to continue operations and may need another strategic transaction. If no viable alternative is available, the company could be liquidated, with no guarantee that any proceeds would remain for shareholders.
Financially, Fortitude reported adjusted EBITDA of $8.5 million, a non-GAAP measure, while its GAAP results showed a net loss of $9.5 million including a $10.3 million impairment on mining equipment. Adjusted EBITDA excludes certain charges that remain reflected in the accounting loss.
| Financial Metric | Amount (USD) | Accounting Method |
|---|---|---|
| Adjusted EBITDA | $8.5M | Non-GAAP |
| Net Loss | $9.5M | GAAP |
| Mining Equipment Impairment | $10.3M | GAAP |
For HeartSciences shareholders, the next disclosure likely to move the situation forward will be a definitive proxy setting the vote date. Until then, Fortitude’s capital injection supports the target’s operations without eliminating the risk of merger approval or execution.
Cypherpunk Technologies Becomes World Largest Zcash Miner
In a separate but related development, Cypherpunk Technologies announced on August 18 that it had acquired a mining fleet of 4.2 GSol/s for $33.33 million, becoming the world’s largest active Zcash mining operator, representing approximately 18% of total network computing power.
Cypherpunk purchased 4,902 Bitmain Z15 Pro machines from Moria Mining, an affiliate of Winklevoss Treasury Investments, under an agreement signed with Winklevoss Treasury Investments LLC. The fleet, already operational in hosting facilities across the United States, would produce approximately 7,800 ZEC per month, based on a daily distribution of approximately 1,440 ZEC to miners across the entire network.
Payment was not made in cash. Cypherpunk issued Winklevoss Treasury Investments a pre-funded warrant allowing the purchase of 43,290,042 common shares at an exercise price of $0.001 per share. The transaction values Cypherpunk stock at $0.77 per share. Warrant exercise is subject to a beneficial ownership cap of 19.99%. Winklevoss Treasury Investments may adjust this cap after notification to the company, but cannot exceed the 19.99% threshold.
« Until now, investors had limited options for exposure to Zcash mining. With the acquisition of this mining fleet, Cypherpunk changes that. »
Cameron and Tyler Winklevoss
The agreement also requires Cypherpunk to seek shareholder approval at its next annual meeting before issuing more than 5,377,442 shares via the warrant. This threshold represents approximately 4.99% of common shares outstanding before the purchase agreement signing and complies with Nasdaq listing rules. If shareholders do not approve the proposal at the first annual meeting, Cypherpunk must continue to seek this approval at subsequent annual meetings. Winklevoss Treasury Investments must vote its eligible Cypherpunk securities in favor of the proposal.
Governance and Operational Leadership
Winklevoss influence already extends to Cypherpunk’s board of directors. The investor exercised rights to designate William McEvoy and Khing Oei as directors, while Cypherpunk’s governance committee approved the mining purchase as a related party transaction.
Operationally, Cypherpunk appointed Kevin Zhang as head of mining. Zhang began mining Bitcoin in 2014 and Zcash in 2016, before contributing to major mining facility development in North America on behalf of Foundry.
Zcash Mining Economics and Company Reserves
Regarding Cypherpunk’s ZEC treasury position, the company held 323,394.38 ZEC on August 11, representing approximately 1.92% of circulating supply, with a target of reaching 5%. The company first used $50 million from a Winklevoss Capital-led private placement to acquire 203,775 ZEC. A subsequent purchase brought reserves to 314,185 ZEC in May 2026. In parallel, Cypherpunk invested $5 million in Zcash Open Development Labs, an organization working on the Zcash protocol and Zodl wallet, with investors including Coinbase Ventures, a16z crypto, and Paradigm.
Will McEvoy, Cypherpunk’s chief investment officer, stated in an X post that the business was already generating positive cash flow and the company entered the operation debt-free. He added that Cypherpunk plans to add its own data centers and energy assets over time.
| Activity / Infrastructure | Revenue ($/MWh) | Equipment Cost ($/MW) |
|---|---|---|
| Zcash Mining | 450 | $2.4M |
| AI Colocation | 223 | $10-12M |
| Bitcoin Mining | 133 | – |
McEvoy also compared Zcash mining economics with other electricity uses. According to his figures, one megawatt of latest-generation Zcash machines generates approximately $450 in revenue per megawatt-hour under current market conditions, versus approximately $223 for artificial intelligence data center colocation and $133 for Bitcoin mining. Equipment costs for one megawatt of Zcash mining capacity amount to approximately $2.4 million, versus $10 to $12 million for artificial intelligence infrastructure. These figures are company estimates and remain sensitive to ZEC price fluctuations, mining difficulty, equipment performance, hosting fees, and electricity costs.
Cypherpunk’s announcement values the annual addressable market for Zcash mining at more than $250 million at current token prices. The company stated that current production costs remained below the ZEC spot price, although its SEC filing classified future hashrate revenue, mining revenue, profitability, and comparative economics as forward-looking statements.
Risks and Regulatory Outlook
Exposure to Zcash-related companies and the token itself remains exposed to network-specific risks. In June, disclosure of a critical flaw in the Orchard shielded pool caused ZEC to drop as much as 45% and lowered Cypherpunk shares by 37%. A subsequent security report indicated the vulnerability could have allowed undetectable ZEC falsification before developers deployed an emergency fix. Shielded Labs stated it found no evidence anyone exploited the flaw on mainnet, but Zcash’s privacy design prevented researchers from proving no exploitation had occurred. Developers subsequently restored Orchard with corrected code via a network upgrade.
On the regulatory front, regulated Zcash exposure in the United States could also expand via Grayscale. In May, the asset manager filed to convert its existing Zcash fund into a spot ETF on NYSE Arca under the symbol ZCSH. The proposed fund held 391,103.89 ZEC valued at approximately $99.4 million as of March 31, according to its filing. Unlike Zcash shielded users, the fund would maintain tokens in transparent custody with Coinbase Custody, while BNY Mellon would serve as administrator.
Conclusion
Two major moves are restructuring the Zcash mining ecosystem. Fortitude’s stake in HeartSciences provides DCG with a pathway to public markets for its mining operations, despite significant operational and timing risks. Simultaneously, Cypherpunk’s acquisition of the world’s largest Zcash mining fleet confirms growing strategic interest in this privacy protocol, whose revenue per unit of energy consumed surpasses Bitcoin mining or AI colocation. Investors exposed to these structures should nevertheless keep in mind the inherent volatility of ZEC price and technical risks of shielded pools, as the Orchard incident demonstrated. The prospect of a Grayscale Zcash ETF could further broaden institutional access to the token in the coming months.
Sources
- CryptoSlate – Zcash miner buys 9.4% of merger target
- Yahoo Finance – Zcash miner Fortitude merging with HeartSciences
- Crypto.news – Cypherpunk becomes largest Zcash miner
- CryptoRank – Cypherpunk controls 18% of Zcash mining power
- The New Money – Cypherpunk Technologies Zcash mining
This article is published for informational and educational purposes only. It does not constitute investment advice in any way. Conduct your own research (DYOR) before making any decisions.
