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<H1>[ZcF-general] Study: Detecting ASIC Miners in Zcash</H1>
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<B>Sonya Mann</B>
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<A HREF="mailto:general%40lists.zfnd.org?Subject=Re%3A%20%5BZcF-general%5D%20Study%3A%20Detecting%20ASIC%20Miners%20in%20Zcash&In-Reply-To=%3CCAOztXWjA%3DAwmjYKiHHBagvY9BkHPDBGfhtO3OOcAJi9e_--E6Q%40mail.gmail.com%3E"
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TITLE="[ZcF-general] Study: Detecting ASIC Miners in Zcash">sonya at z.cash.foundation
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<I>Thu Jun 7 17:54:03 EDT 2018</I>
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<PRE>Hi everybody! I'm cross-posting from our announcement blog post:
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<A HREF="https://z.cash.foundation//blog/asic-equihash-study/">https://z.cash.foundation//blog/asic-equihash-study/</A>
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The Zcash Foundation asked University of Luxembourg researchers Alex
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Biryukov and Daniel Feher to investigate the potential presence (now or in
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the past) of ASIC miners in the Zcash and Equihash ecosystems. This is the
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first step in addressing the commitments we made in our official statement
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<<A HREF="https://z.cash.foundation//blog/statement-on-asics/">https://z.cash.foundation//blog/statement-on-asics/</A>> on the ASIC
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resistance debate. Today we are jointly releasing the results; the full
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report is available on their website
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<<A HREF="https://cryptolux.org/images/e/ef/Zcash_Mining.pdf">https://cryptolux.org/images/e/ef/Zcash_Mining.pdf</A>>.
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Biryukov and Feher concluded, “In the short period of time of this study (2
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weeks) we could put an upper bound on the ASIC/FPGA potential presence in
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Equihash mining ecosystem as of end of May 2018 at 20 – 30% of total mining
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operations,” based on GPU miner’s dev-fee estimates and the fraction of
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above 8Ksol miners in the Equihash mining landscape. Dev fees are typically
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2% voluntary fees that many of the GPU miners pay to the developers of the
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most optimized GPU mining software.
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To be clear, that means that *if* ASIC operations were active in the
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Equihash ecosystem, they did not comprise more than 20 – 30% of total hash
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power.
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Biryukov and Feher continued, “Most of the mining power (95%) is
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concentrated in pools so any large hidden ASIC/FPGA operation should be
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present in one or several of the pools, moreover four pools concentrate
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87.5% of the total mining power.”
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The researchers made sure to include a caveat: “It is important to note
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that our current methods can be ‘fooled’ by careful ASIC miner and the
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methods are also not fine-grained enough to detect ASIC miner testing of
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few % of the total hash-rate. This is a work for further research.”
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We encourage you to read the study
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<<A HREF="https://cryptolux.org/images/e/ef/Zcash_Mining.pdf">https://cryptolux.org/images/e/ef/Zcash_Mining.pdf</A>> yourself, as well as
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the ballots <<A HREF="https://github.com/ZcashFoundation/Elections/pulls">https://github.com/ZcashFoundation/Elections/pulls</A>> that will
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be part of our upcoming governance process.
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Sonya Mann
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Communications Manager
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Zcash Foundation
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@sonyaellenmann <<A HREF="https://twitter.com/sonyaellenmann">https://twitter.com/sonyaellenmann</A>>
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</PRE>
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