Metronome says its MET tokens can now be moved between Ethereum and Ethereum Classic blockchains, a feature that started rolling out last week
Daniel Kuhn / CoinDesk :
Context & Ripple Effects
Metronome launched in 2017 as Jeff Garzik's bet on a token that lives on multiple blockchains rather than a single one — the coin's debut pitch was portability itself. Two years on, the project is making good on that promise for real: MET can now be moved between Ethereum and Ethereum Classic, with the rollout beginning last week.
The Ethereum Classic side of the pairing carries history. Coinbase added ETC support in 2018, then halted all Ethereum Classic transactions after a 51% attack enabled double-spending in January 2019 — so a token gaining the ability to migrate onto that chain is stepping into a venue with a demonstrated security record, not just a technical one.
First-order effects
- MET holders can now move their tokens between Ethereum and Ethereum Classic, making Metronome's founding multi-chain design operational rather than theoretical.
- Ethereum Classic gains a live token migration path onto its chain, giving ETC holders a new asset to interact with on-network.
Second-order effects
- The 51% attack that froze Coinbase's ETC support becomes a live risk consideration for MET holders deciding whether to port tokens onto the smaller chain, putting chain security at the center of Metronome's value proposition.
- Exchanges and wallets with Ethereum Classic support become the natural liquidity venues for migrated MET, and any venue that pauses ETC — as Coinbase did — cuts off one leg of the token's portability.
Third-order effects
- If tokens are designed to migrate between chains from birth, chain selection becomes a recurring choice for holders rather than a one-time issuance decision, and the security of smaller chains becomes a competitive variable for attracting token supply.
- Cross-chain portability as a default design pattern would pressure the single-chain token model that most issuances still follow, though the ETC attack record shows the security assumptions differ sharply across chains.
The trend: Cryptocurrencies are moving toward native cross-chain portability, with each destination chain's security record — not just its technical compatibility — determining whether token holders actually migrate.