Cemetery / Fantom Opera
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.
Quick answer
Fantom Opera is tracked in the CTD crypto project cemetery so former users can reconstruct venue history, claim status, and tax-relevant records. Start with CSV exports, account statements, explorer history, and any claim-portal documents before asking software or an accountant to review the case.
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
CTD summarizes public history and recovery clues for education. It does not determine loss treatment, claim value, or filing treatment.