What is Zcash? Zcash is a privacy-focused Layer 1 cryptocurrency launched in 2016 that uses zero-knowledge cryptography to let users choose between transparent and shielded transactions. Its native asset, ZEC, operates on a Bitcoin-derived blockchain secured by proof of work and the Equihash mining algorithm.
How Zcash works
Zcash uses zk-SNARKs, or zero-knowledge proofs, to verify that a transaction is valid without revealing its amount, sender, recipient, or spending authorization. This allows the network to prevent double spending and unauthorized coin creation while keeping selected transaction data encrypted.
The blockchain supports transparent addresses, which begin with t and publicly show transaction details, and shielded addresses, which conceal transaction participants and amounts. Funds can move from transparent addresses into shielded pools, between shielded addresses, or back to transparent addresses. Unified Addresses allow wallets to combine several receiver types behind one address format, making shielded payments easier to use.
The privacy system has developed through several upgrades. Sapling improved proving performance and key management, while Orchard, introduced through Network Upgrade 5 on 31 May 2022, became the current-generation shielded payment protocol. Orchard uses Halo 2 and the Pasta curve cycle. Halo 2 supports recursive proof composition and removed the need for a protocol-specific trusted setup for the Orchard system.
What is Zcash used for?
Zcash is primarily designed for private digital payments. Shielded ZEC can reduce public exposure of personal spending, salaries, business payments, donations, and commercial settlements. Viewing keys and selective-disclosure tools allow transaction information to be shared with selected auditors, counterparties, or other authorized parties when transparency is required.
The ecosystem also supports consumer and cross-chain applications. Zashi, now presented in ecosystem materials as Zodl, is a self-custodial wallet focused on shielded payments. Integrations with Keystone support hardware-wallet custody for shielded ZEC, while NEAR Intents and swap services connect Zcash to assets on other networks. Gemini has supported shielded ZEC withdrawals, and a Zashi-Flexa integration was designed for spending at participating retailers.
Zcash Shielded Assets, defined in ZIP 227, extend the privacy model beyond the native coin. The framework is intended to support shielded issuance, transfers, and redemption of assets such as stablecoins and tokenized instruments, although individual integrations remain subject to development and adoption.
Who is behind Zcash and where is it based?
Zcash originated from the Zerocoin and Zerocash research projects. Key researchers associated with the lineage include Eli Ben-Sasson, Alessandro Chiesa, Christina Garman, Matthew Green, Ian Miers, Eran Tromer, and Madars Virza. Zooko Wilcox founded the company that developed the protocol, and Zcash launched on 28 October 2016 through Zerocoin Electric Coin Company.
The company later became Electric Coin Company, or ECC. Its 2024 transparency report identified the legal entity as Zerocoin Electric Coin Company, LLC, headquartered in Denver, Colorado, incorporated in Delaware, and operating in the United States. ECC was a wholly owned subsidiary of The Bootstrap Org., Inc., a U.S. 501(c)(3) nonprofit public charity.
The Zcash Foundation, established in 2017, is a separate U.S. 501(c)(3) public charity focused on open-source infrastructure, stewardship, research, and grants. ECC concluded operations in 2026, and its former team transitioned to the independent Zcash Open Development Lab. Shielded Labs, based in Switzerland, is another independent organization supporting the ecosystem.
Tokenomics and network security
Zcash has a maximum supply of 21 million ZEC. New coins are issued through proof-of-work block subsidies, and scheduled halvings reduce the issuance rate. The first halving reduced the subsidy to 3.125 ZEC in November 2020. The second, implemented with NU6 in November 2024, reduced it to 1.5625 ZEC per block.
At the time of the CoinStats snapshot on 1 October 2026, ZEC was priced at $1,433.15, with a 24h change of +1.17%. Its market cap was $24.31B (rank #10), and 24h volume was $3.80B. Circulating supply was 16,960,081 ZEC, while total supply was 16,961,486 ZEC. The all-time high was $3,191.93, the current price is 55.10% below it.
The original Founders’ Reward expired at the first halving. A later development fund directed 20% of issuance toward development, while NU6 introduced a model in which 12% of block subsidies was routed to a lockbox pending decisions on distribution. Zcash remains inflationary while new coins are issued, but its declining issuance schedule and 21-million-coin cap create a disinflationary supply model.
Proof of work protects the chain by making block production and transaction-history rewriting costly. Equihash is memory-intensive, and shielded transactions receive an additional security layer from the soundness of the zk-SNARK system. Crosslink, a proposed hybrid proof-of-work and proof-of-stake design, aims to add staking participation and stronger finality, but it has not replaced the settled proof-of-work consensus.
Development roadmap and advantages
Recent work includes the NU6.2 emergency upgrade, activated at block height 3,364,600 on 3 June 2026. It corrected a soundness vulnerability in the Orchard Action circuit and restored the Orchard shielded protocol with a corrected verifying key.
The ecosystem is also migrating from the legacy zcashd implementation toward Zebra, Zaino, Zallet, and other infrastructure. Proposed work includes Crosslink, Shielded Assets, quantum-recovery research, formal verification, improved light clients, and Project Tachyon, which targets scalable and more future-resistant private payments.
The central advantage of Zcash is the combination of Bitcoin-like scarcity and proof-of-work security with optional, cryptographically enforced privacy. Its main limitations are the technical complexity of shielded transactions, dependence on wallet and exchange support, and continuing organizational and protocol changes.