Horizen Privacy Mainnet Officially Launched on Caldera, Bringing Privacy Protection to the "On-Chain Network" Ecosystem

Caldera has announced that the Horizen privacy mainnet is now officially live and operational within its ecosystem. This launch introduces privacy protection technology to Caldera’s “Internet of Chains” ecosystem, making privacy a core component and opening up new categories of application scenarios for cross-chain applications, enterprise adoption, and AI-driven systems.

Breakthrough in Solving Web3 Privacy Challenges

While traditional public blockchains offer data verifiability, they lack privacy protection, making user behavior, business logic, and transaction intent fully transparent. This structural barrier has seriously hindered the development of consumer-grade applications, enterprise adoption, and AI systems. The Horizen mainnet addresses this issue by providing end-to-end configurable privacy infrastructure.

The Horizen mainnet integrates zero-knowledge proof technology, selective disclosure mechanisms, compliance-aware architecture, and full EVM compatibility, transforming privacy from an add-on feature into a programmable property of the chain itself. Developers can use standard tools to build applications while benefiting from advanced privacy protections.

Becoming the Privacy Service Chain in the “Internet of Chains”

The Horizen mainnet has joined the specialized rollup network built on Caldera Metalayer, contributing unique value as the shared privacy capability for the entire ecosystem. This unlocks a range of cross-chain possibilities, including cross-chain confidential DeFi, private identity and reputation systems for each application chain, and privacy protection for AI-powered applications.

Thanks to Metalayer’s interoperability, Horizen is not only a destination chain but also a service chain. Any other Caldera rollup can integrate Horizen as a privacy module for their applications, pioneering a new category of rollup-oriented “Privacy as a Service” (PaaS).

Metalayer Amplifies Horizen’s Impact

Horizen chose Caldera in part to ensure its privacy technology stack would not be isolated. With the mainnet launch, the ZEN token achieves universal accessibility via Metatoken and Metalayer, and authentication, proofs, and confidential data flows can move cross-chain. Any developer on a Caldera chain can instantly deploy privacy components by calling Horizen.

This accelerates the ecosystem’s flywheel effect: new chains launch → integrate Horizen privacy features → users and liquidity flow across the network → more developers build → more chains join → Horizen evolves into the privacy hub.

Mainnet Now Open for Use

With the mainnet live, developers can start deploying privacy-protecting applications that were impossible on transparent chains. Users can access these applications using standard Ethereum wallets such as MetaMask. Developers and users can access

A New Era of Privacy in the “Internet of Chains”

This launch marks a key expansion of Caldera’s vision: a world where specialized chains form a unified, interoperable network, with privacy as a core building block rather than an optional add-on. The Horizen mainnet is now live, its privacy infrastructure is interoperable, and the Caldera ecosystem is now stronger, more capable, and more composable.

Caldera congratulates the Horizen team on reaching this milestone and is proud to partner with them in building the next generation of confidential, interconnected blockchain systems.