ISRC DEF057230413
Verified recording
DEF057230413 is “Die lustige Witwe, Act III: No. 16, Schlussgesang. Ja, das Studium der Weiber ist schwer” by Franz Lehár,
registered on the CopyrightChains blockchain with CopyrightID
0xef5588f29a00b77c00aaf883476b684f566ac30715d51ce16bb38017c859cfb4 and independently timestamped
in Bitcoin block 957118 on 2026-07-08.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057230413.
Recording identifiers
- ISRC
- DEF057230413
- Title
- Die lustige Witwe, Act III: No. 16, Schlussgesang. Ja, das Studium der Weiber ist schwer
- Artist
- Franz Lehár
- CopyrightID (CopyrightChains transaction hash)
0xef5588f29a00b77c00aaf883476b684f566ac30715d51ce16bb38017c859cfb4
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:e72bedd00ce69054c3518153235570f3abe573dff123ea44bc45c4dde96dc0e1- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057230413
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: Die lustige Witwe, Act III: No. 16, Schlussgesang. Ja, das Studium der Weiber ist schwer · Machine-readable JSON-LD