As Horizen prepares for the upcoming migration to its new appchain on Base, we’re inviting the community to participate in a testnet dry run.

This dry run is a vital part of ensuring a successful and secure migration for everyone. It is also your chance to experience the migration process first-hand, including claiming test ZEN from both the Horizen Mainchain Testnet and EON Gobi Testnet before real assets are involved.

• Get familiar with the process — Learn how to claim ZEN across both Horizen and EON chains before real assets are involved

• Test your setup — Validate that your wallet (Sphere, MetaMask, CLI, Ledger) works correctly and is connected to the right networks

• Catch issues early — Identify any bugs or edge cases that need fixing before mainnet migration

• Stress-test infrastructure — Help ensure everything scales smoothly under real user load

• Avoid last-minute surprises — Know exactly what to do and when, so you're ready when the mainnet snapshot happens

This is a risk-free rehearsal for one of Horizen’s most important transitions, and a chance to shape it with your feedback.

We encourage all users, developers, and validators to participate to help us test wallet connections, claim flows, and infrastructure stability.

ZEN Migration Claim Portal Testnet

The testnet version of the ZEN migration Claim Portal. Use the claim portal to test your ZEN migration from the Horizen mainchain to Base.

https://www.horizen.io

• For importing the ERC-20 token on Base Sepolia: 0x107fdE93838e3404934877935993782F977324BB

  Ticker Symbol: tZEN

• Connecting to Base Network

  • Testnet Name: Base Sepolia

  • RPC Endpoint: https://sepolia.base.org

  • Chain ID: 84532

  • Currency Symbol: ETH

  • Block Explorer: https://sepolia-explorer.base.org

https://horizen-2-docs.horizen.io/migration/migration-tools#claim-page

Share your testing experience, and report any bugs: Let Us Know Your Feedback

Need Help? Join the discussion and support channel on Discord for help from the Horizen team and community.

Security Reminder: NO real ZEN is involved in this testing.

Only follow the official channels for reliable information

• Horizen X: https://x.com/horizenglobal

• Horizen Discord: https://horizen.io/invite/discord

• Horizen Telegram Group: https://t.me/horizencommunity

• Horizen website: https://horizen.io

Do not click links or download apps provided by non-official sources.

Helpful Migration Resources:

• Migration Guide

• Migration Security Best Practices

• Exchange Support Status Tracker