Horizen (ZEN)

Overview

Horizen is a blockchain ecosystem focused on private onchain applications. Its token, ZEN, gives holders a role in community governance and can be used in staking and applications built around the network. Horizen began as a privacy-focused cryptocurrency project. Today, it operates an Ethereum-compatible Layer 3 chain built on Base, with an emphasis on private finance and applications that can share information with authorized parties when needed. (horizen.io)

That shift matters for understanding ZEN. In July 2025, the token moved from Horizen’s older chains to Base as an ERC-20 token. Developers can now use tools familiar from Ethereum to build on Horizen, while token holders can use wallets that support Base. The project’s central idea is to let applications protect sensitive activity—such as a trading strategy or business record—without giving up the ability to connect with the wider Ethereum ecosystem. (docs.horizen.io)

History & Team

From ZenCash to a Base-based network

The project launched in 2017 as ZenCash. Co-founders Rob Viglione and Rolf Versluis developed it from ZClassic, which had roots in Zcash technology. Early work centered on private payments, a treasury to fund development, and rewards for network node operators. The project later adopted the Horizen name and expanded its work toward blockchain infrastructure and applications. (horizen.io)

Horizen’s path included a proof-of-work mainchain and EON, an Ethereum-compatible chain for smart contracts. A community-approved change led to the migration of ZEN balances from those chains to Base. The migration was completed on July 23, 2025, at a one-to-one ratio for eligible legacy holdings. Horizen then launched its Layer 3 mainnet as a place to build applications linked to Base. (docs.horizen.io)

Governance now runs through the Horizen DAO, a community structure in which ZEN holders can vote on proposals. The Horizen Foundation, a Cayman Islands foundation company, helps carry out approved decisions and support the ecosystem. This arrangement gives the project a way to make choices about funding, technical direction, and community programs. (horizen-2-docs.horizen.io)

Technology & How It Works

A Layer 3 connected to Base

A blockchain layer is a network built on another network’s foundations. Ethereum is the underlying network; Base is a Layer 2 built on Ethereum; and Horizen Chain is a Layer 3 built on Base. Horizen uses the OP Stack and supports the Ethereum Virtual Machine, or EVM. As a result, developers can write smart contracts in Solidity and use common Ethereum development tools. (docs.horizen.io)

Transactions run on Horizen Chain, while the network connects back through Base to Ethereum. Assets can also move between Base and Horizen through supported bridges. This design lets a developer build an application for Horizen without starting from an entirely new set of programming tools or cutting it off from assets used elsewhere in the Ethereum ecosystem. Transactions on Horizen Chain use ETH for gas fees, while ZEN has separate roles in governance, staking, and applications. (docs.horizen.io)

Privacy chosen by the application

Horizen lets builders choose privacy tools for particular tasks. For example, an application might keep a user’s strategy confidential while allowing an authorized party to check required records. The chain’s design supports approaches such as viewing keys, verifiable audit logs, and links to specialized tools for confidential computing and zero-knowledge proofs. A zero-knowledge proof can show that a statement is true without revealing all the information used to establish it. (docs.horizen.io)

One tool in development is Vela, built by Horizen Labs. It uses trusted execution environments: isolated areas of computer hardware where a program can process sensitive information. Vela’s developer starter kit is available as a local development environment, with wider testnet access described as a next step. This makes Vela an example of the project’s direction, rather than a feature that every Horizen application already uses. (blog.horizen.io)

Tokenomics & Utility

Supply and distribution

ZEN has a maximum supply of 21 million tokens. Horizen launched without an initial coin offering or premine. When ZEN migrated to Base, the maximum supply stayed the same, but the plan for distributing the remaining unissued tokens changed. Instead of continuing the old chain’s block-reward model, the DAO approved allocations aimed at funding participation, development, and longer-term ecosystem work. (horizen.io)

The 2025 allocation plan addressed roughly 5 million ZEN that had not yet been issued. It set aside tokens for incentives, community grants, infrastructure, ecosystem development, and a sustainability initiative. The plan called for one-quarter of the remaining allocation to be issued at migration and the balance to become available gradually over 48 months. Those allocations describe how the project funds activity; they are distinct from ZEN’s fixed maximum supply. (blog.horizen.io)

ZEN holders use the token to take part in DAO decisions. ZEN can also be staked on Horizen Chain through a community-approved program. The program draws on an approved DAO allocation and other possible ecosystem contributions, rather than the mining rewards used by the original chain. Applications may give ZEN further roles, depending on how their developers design them. Staking takes place on Horizen Chain, so ZEN held on Base must first be moved there through a supported bridge; ETH covers the chain’s transaction fees. (docs.horizen.io)

Ecosystem & Use Cases

Horizen’s main focus is private onchain finance. A trading application, for instance, may need to protect an order or strategy from public view. A business payment system may need to keep customer details confidential while still keeping records that authorized reviewers can inspect. The chain is designed to let developers choose the degree and method of privacy that fits each application. These are possible uses of the infrastructure, with the details determined by the applications themselves. (docs.horizen.io)

The ecosystem also includes builders working on exchanges, settlement, and compliance tools. Horizen identifies ZENDEX as a privacy-focused exchange project, Tachyon as a developer of confidential settlement channels, and DataHubz as a compliance-focused platform. Infrastructure partners support functions such as cross-chain messaging, data feeds, and indexing. Builder funding and grants are intended to help teams turn these tools into usable applications. (horizen.io)

Advantages & Challenges

Horizen’s EVM compatibility is a practical advantage for developers: they can bring familiar code and tools to a network built for privacy-focused applications. Its connection to Base also makes it easier to work with an existing Ethereum ecosystem. For users, the project separates the roles of its assets clearly: ETH pays transaction fees, while ZEN supports governance, staking, and application activity. (docs.horizen.io)

The main challenge is turning flexible technology into widely used products. Privacy is designed at the application level, so different apps may offer different features and ways to share records. Some tools, including Vela, are still moving through developer testing and rollout. Users also encounter separate Base and Horizen networks when moving assets for activities such as staking. These details make clear documentation and simple app design important to the ecosystem’s growth. (docs.horizen.io)

Where to Buy & Wallets

ZEN is available on exchanges including Binance and Coinbase, and on Base-based decentralized exchanges including Aerodrome and Uniswap. Availability depends on the platform and the user’s region. On Base, the official ZEN ERC-20 contract address is 0xf43eB8De897Fbc7F2502483B2Bef7Bb9EA179229. That address identifies the migrated token when adding it to a compatible wallet. (horizen.io)

MetaMask and Coinbase Wallet are examples of Web3 wallets used with Horizen’s staking setup. A wallet must be set to the appropriate network for the task: Base for ZEN held there, or Horizen Chain for onchain staking and applications. Moving ZEN between those networks uses a supported bridge. The older mainchain used a different address format, which is why legacy holders use Horizen’s migration claim process to receive eligible ZEN on Base. (blog.horizen.io)

Regulatory & Compliance

Horizen’s approach pairs confidentiality with ways for applications to share information with authorized reviewers. In the European Economic Area, crypto-asset services operate within the Markets in Crypto-Assets Regulation, known as MiCA. Horizen has published a ZEN crypto-asset whitepaper for that framework, with a version dated June 2026. In the United States, obligations depend on the activity: FinCEN guidance addresses businesses that exchange or transmit convertible virtual currency, while securities rules examine the features and circumstances of particular crypto-asset transactions. (horizen.micarwhitepapers.eu)

Halal or Shariah compliance involves a different kind of review. ZEN can be held, transferred, used in governance, staked, or placed in applications with their own financial terms. An Islamic-finance assessment therefore considers the activity and its contract structure, including whether an application involves interest-based lending. The Islamic Financial Services Board describes review by qualified Shariah authorities as part of a sound process for products presented as Shariah-compliant. (horizen.io)

Future Outlook

Horizen’s next stage centers on making private applications easier to build and use. Work on Vela gives developers a way to test confidential computation, while builder programs seek applications for trading, payments, and other onchain services. The DAO’s funding and staking decisions provide a model for supporting that work. How broadly the network is used will depend on the applications developers deliver and how well they serve people and organizations that need both confidentiality and usable records. (blog.horizen.io)

Summary

Horizen has evolved from a privacy-focused cryptocurrency into a Base-based Layer 3 for applications. ZEN remains its fixed-supply governance and utility token, with roles in voting, staking, and ecosystem activity. The project’s place in crypto is its effort to bring practical privacy tools to familiar Ethereum-style development, while allowing applications to build in ways to share information for review. (horizen.io)