Deep Dive
1. Mainnet to ERC-20 Migration (24 July 2025)
Overview: Horizen sunset its legacy UTXO blockchain and EON sidechain, migrating ZEN to Base as an ERC-20 token. This enables integration with Ethereum-based DeFi protocols.
The migration increased ZEN’s circulating supply to 17.25M (from 16M) by allocating 750,000 ZEN to its DAO and 500,000 to its Foundation. Security audits by Halborn and Cantina confirmed the safety of migration tools. Exchanges like Coinbase and KuCoin automated token swaps for users.
What this means: This is bullish for ZEN because it unlocks deeper liquidity, simplifies DeFi participation, and aligns with Ethereum’s ecosystem growth. Traders gain access to DEX pairs like ZEN/USDC on Uniswap.
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2. Layer 3 Privacy Appchain Launch (24 July 2025)
Overview: Horizen 2.0 debuted as a privacy-focused Layer 3 appchain on Base, leveraging zero-knowledge proofs for stealth transactions.
Partnering with Singularity, Horizen enabled private trades in standard wallets without requiring specialized software. The architecture supports confidential DeFi, identity solutions, and gaming.
What this means: This is neutral for ZEN short-term (due to migration volatility) but bullish long-term. Privacy enhancements differentiate ZEN in DeFi, though adoption depends on developer traction and regulatory clarity.
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3. ZEN 5.0.7 Node Upgrade (15 July 2025)
Overview: A mandatory upgrade prepared nodes for the migration, deprecating ZEN 5.0.6 at block #1,783,180 (11 June 2025).
The update ensured compatibility with post-migration operations but did not introduce new features. Node operators who missed the deadline risked disconnection.
What this means: This is neutral for ZEN – routine maintenance critical for network stability but not directly impacting end-users.
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Conclusion
Horizen’s codebase shifts from a standalone blockchain to a modular, privacy-centric Layer 3 on Base prioritize DeFi interoperability and regulatory resilience. While the migration introduces short-term complexity, it positions ZEN to capitalize on Ethereum’s ecosystem. Will privacy-focused Layer 3s become a dominant narrative in 2026?