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From August 18 to August 22, Zcash surged from around $600 to a high of $834, rising 67% in 7 days and nearly 20 times in a year. The 24-hour increase once exceeded 40%, pushing its market cap into the global top 12. What happened? Three events triggered this simultaneously: Grayscale's fifth amended filing for a Zcash ETF, the activation of the Ironwood privacy upgrade, and — a company called Cypherpunk launched a Zcash miner with 4.2 GSol/s. The third event is the most worth pondering. On August 18, Nasdaq-listed Cypherpunk Technologies (CYPH) announced the establishment of its mining division, Cypherpunk Mining. Through a $33.33 million equity deal, it acquired 4.2 GSol/s of Equihash hash power from Winklevoss Capital. How much of Zcash's total network hash rate is that? 18%. The largest Zcash miner globally, bar none. And all these miners are deployed within the United States, using Bitmain Z15 Pro machines. The company also announced it currently holds 323,394 ZEC, about 1.92% of the circulating supply, with a target to reach 5%. Mining head Kevin Zhang bluntly stated: "At the current coin price, mining Zcash is already more profitable than AI hash power hosting and Bitcoin mining." Now, here’s the question — Is 18% hash power concentrated in one listed company a positive or a negative? Pro side: This is the strongest institutional endorsement in Zcash’s history. First, who are the Winklevoss brothers? The earliest promoters of Bitcoin ETFs. They are betting not on speculation but on the production side — directly controlling 18% of the network’s block production capacity. This is voting with their feet, and firmly planting them in the ground. Second, geographic decentralization. Zcash’s hash power has long been concentrated in a few miners and pools outside the U.S. This time, 18% of hash power is fully deployed domestically in the U.S., reducing geopolitical risk. Third, aligned interests. Cypherpunk holds 323,394 ZEC and aims for 5%. They want the Zcash network to be secure, compliant, and for the price to rise more than anyone else. This is not speculation; this is ecosystem building. The company CIO said: "Tokens earned from mining will provide financial and operational flexibility to fund future growth, acquire more ZEC, and invest in new privacy protection technologies." In plain terms: the more they mine, the more they accumulate; the more they accumulate, the more they mine — a snowball effect. Con side: 18% hash power concentration is just two steps away from the 51% attack warning line. In PoW networks, a single miner controlling over 33% hash power is already in the danger zone. What does 18% mean? Only 15 percentage points away from 33%. If Cypherpunk continues to expand — and it clearly stated its "target is 5% of supply" — the hash power share will almost certainly rise. Then the community will ask: Is this company the guardian of Zcash or its central bank? More subtly: Cypherpunk’s predecessor was a cancer drug company, only completing its transformation in November 2025. The leap from biopharma to privacy coin mining is so large it raises caution — is this a strategic layout or just capital chasing hype? But I think the most important thing to consider is not the 18% itself. It’s the "listed company + large-scale hash power + continuous accumulation" model. Who does this resemble? MicroStrategy’s approach to Bitcoin. MicroStrategy is buy, buy, buy; Cypherpunk is mine, mine, mine + buy, buy, buy. One accumulates from the secondary market, the other from the primary production side. If this model works, Zcash could become the first privacy coin locked down by a listed company from both hash power and token holdings. If it doesn’t — with hash power over-concentration causing community splits, regulatory intervention, or a Zcash price crash — then this 18% could be the last straw breaking the decentralization narrative. So my judgment is: In the short term, this is positive. Institutional real money entering, ETF expectations heating up, Ironwood upgrade fixing security vulnerabilities — triple catalysts overlapping, Zcash’s valuation reconstruction is just beginning. In the long term, this is a risk. The 18% hash power concentration needs ongoing monitoring. Every 1% increase in Cypherpunk’s hash power will raise the community’s decentralization anxiety by 10%. The Winklevoss brothers said in their announcement: "Until now, investors had very limited options to participate in Zcash mining." They are right. But what investors want is a decentralized privacy network, not one controlled by a listed company. $BTC $ETH $ZEC #ZEC创站内历史新高，隐私资产重估