Aztec Network Launches Ignition Chain, First Fully Decentralized L2 on Ethereum Mainnet After Reaching 500 Validators

Aztec Network officially launched its Ignition Chain on the Ethereum mainnet on November 20, 2025, marking it as the first fully decentralized Layer 2 (L2) protocol on the network. This significant development aims to bring programmable privacy to decentralized finance (DeFi) applications. The launch was confirmed by Aztec Network on X, stating, "Aztec just shipped the Ignition Chain, the first fully decentralized L2 on Ethereum. This launches the decentralized consensus layer that powers the Aztec Network.

The Ignition Chain is designed to function as a "private world computer," enabling developers to create DeFi applications with end-to-end confidentiality. It achieves this by integrating zero-knowledge proofs with Ethereum's robust security, offering users enhanced privacy, scalability, and reduced transaction costs. This innovation addresses the long-standing trade-off between transparency and confidentiality in the blockchain ecosystem.

A crucial milestone for the launch was the validator queue reaching 500 participants, which triggered block production on the Ethereum mainnet. This threshold signifies a robust and decentralized base of participants, enhancing network security and resilience against potential bad actors. The network's native AZTEC token, used for staking, governance, and block rewards, recently commenced its token sale, with a public auction scheduled for December 2.

Aztec Network, which secured $100 million in Series B funding led by a16z in 2022, has been a prominent player in zero-knowledge research. The Ignition Chain's debut follows a public testnet rollout in May, demonstrating a relatively swift transition to full deployment. This move positions Aztec to further its goal of merging scalability, privacy, and decentralization on Ethereum.

The introduction of the Ignition Chain broadens the options for Ethereum users seeking lower fees combined with confidentiality for on-chain activities. While competition among scaling solutions remains intense, Aztec's focus on a fully decentralized, privacy-preserving L2 represents a notable advancement in the evolving landscape of blockchain infrastructure.