Zcash Turns 10: 10 Facts About Its Privacy Technology and Evolution

Zcash marks its tenth anniversary on October 28, a decade after six participants took part in a trusted setup process designed to prevent counterfeit coins from being created. Each participant had to destroy their secret contribution to prevent anyone from exploiting it to forge Zcash tokens. One participant, Peter Todd, reportedly burned his laptop after completing his part in the process.

• Sapling, October 2018: Cut the memory for a shielded transaction by about 97%, to roughly 40 MB.
• First halving, November 2020: The reward fell from 6.25 to 3.125 ZEC. Canopy, activated at the same block, ended the Founders Reward and created a new development fund.
• Halo, 2019 to 2022: Sean Bowe’s cryptographic research helped eliminate the trusted-setup requirement for Orchard. 
• Orchard, May 2022: Launched with the NU5 upgrade, introducing a Halo 2-based shielded pool and support for unified addresses. 
• Ironwood, July 2026: After a flaw in Orchard that could in theory have allowed undetectable counterfeits, a replacement pool added formal supply checks, with Orchard funds moving through a controlled migration. No abuse was found.

CoinMarketCap recorded ZEC’s all-time high at $5,941.80 on October 29, 2016, and its all-time low at $15.97 on July 5, 2024. ZEC reached $1,693 on September 26, 2026, before trading at $1,313 on October 28, up approximately 137% year to date. 

CoinGlass data also recorded an unusual 71.46% one-day decline on October 30, 2016, followed by a 184.56% gain the next day. Analysts have attributed ZEC’s longer-term price decline to factors including early supply dynamics and regulatory pressure.

1. Zcash began as academic research. Johns Hopkins and MIT researchers introduced Zerocoin in 2013, then Zerocash, so its privacy rests on published cryptography.
2. It was built on Bitcoin’s code. It shares Bitcoin’s 21 million cap and halvings, so transparency is the main difference.
3. Zcash’s 2016 trusted setup involved six participants. Each destroyed their secret contribution to prevent counterfeit coins, and security required only one participant to act honestly. 
4. Details stayed secret until the end. The team published a blog post and archived records afterward for verification.
5. Launch prices collapsed within days. The price fell below $100 within a month of its October 2016 launch, highlighting how limited supply and speculative demand distorted its early valuation. 
6. The Founders Reward paid insiders. Before Canopy, 20% of each block went to founders and their organizations.
7. Privacy can be disclosed selectively. Viewing keys let users show payments to auditors, which matters for compliance.
8. Wallets can default to privacy. Unified addresses and the Zodl wallet, formerly Zashi, route funds to shielded pools without user choices.
9. Ironwood had a migration plan. Orchard funds move through a controlled process that protects supply integrity.
10. Coinholders Shape Zcash’s Funding Future. Coinholders backed a February 2031 start for NSM reissuance with 96.6% support, while Sean Bowe proposed redirecting ZCG’s 8% block-reward allocation to the reserve. 

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Developers aim to more than double throughput by October 2027. Quantum-resistant signatures for open addresses are targeted for January, protecting coins outside shielded pools. For investors, the funding stream gives Zcash a source of money independent of its token price, but it means constant dilution to grant programs sized by community votes that can be contentious.