Cemetery / Fantom Opera
Blockchain
wind down
No claims
Fantom Opera
Fantom Opera L1 legacy network sunset by Sonic Labs on 30 June 2026 after the ecosystem migrated to the Sonic chain. Opera FTM→S bridge closed at sunset; ERC-20 FTM→S and Sonic Gateway paths remained the migration routes. Chain history is intended to remain preserved as archives.
1. History reconstruction
Where leftover records may still live.
Explorers / archives: Opera explorers / archive nodes; export DeFi positions before sunset.
Software: FTM vs S (Sonic) tickers and chain IDs must stay distinct in cost-basis software.
- Assets left only on Opera after sunset may be stranded — document last known balances.
- Migration / bridge events may be taxable in some jurisdictions — do not invent treatment.
2. Sources
- Sonic Labs — Fantom Opera sunset / migration official
- CryptoBriefing — Opera shutdown date secondary