Cemetery / COSS
Exchange
halted
No claims
COSS
Crypto One-Stop Solution (COSS) exchange that ceased as a usable venue around 2020. Exact filing dates are soft — deepen when primary notices are found.
Quick answer
COSS 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.
CSV / statements: Any COSS CSV users exported locally.
- Dates approximate (~2020) until primary notices are attached.
2. Sources
CTD summarizes public history and recovery clues for education. It does not determine loss treatment, claim value, or filing treatment.