Harmony has officially proposed sunsetting its Layer-1 (L1) blockchain and migrating its native token, ONE, to the Ethereum network. This drastic transition follows a critical exploit in early 2026 that forced the development team to plan the discarding of over 109,000 transactions to maintain network integrity. If the proposal is approved by the community, Harmony will effectively cease to exist as a standalone L1, transforming into an Ethereum-based asset to regain market trust and security.
The proposal comes at a time when Harmony’s sharding-based architecture has faced increasing scrutiny regarding its resilience. The decision to migrate suggests that the core team views the current L1 infrastructure as no longer viable for high-stakes decentralized finance (DeFi). The migration process is expected to involve a structured token swap, moving liquidity from Harmony’s proprietary shards directly into the Ethereum ecosystem, though the exact technical bridge or Layer-2 implementation details are still under internal review.
For investors and developers, this shift signals a major retreat from the "alternative L1" narrative that Harmony helped lead. While moving to Ethereum provides immediate access to a more robust validator set and deeper liquidity, it also subjects the ONE token to Ethereum’s gas dynamics and competitive landscape. Current ONE holders must stay alert for official migration deadlines and governance votes, as assets remaining on the legacy Harmony L1 will eventually lose utility once the chain is officially sunsetted.
Moving forward, market participants should watch for the specific timeline of the migration and the potential for a new Ethereum-based smart contract audit. This move sets a significant precedent in 2026 for struggling blockchain networks, highlighting a growing trend of "reverse-scaling" where smaller L1s seek refuge within the Ethereum ecosystem. Regulatory bodies may also take interest in how the transition affects token distribution and previous governance structures.