ISRC DEF057230441
Verified recording
DEF057230441 is “Die lustige Witwe, Act III: Dialogue. Valencienne, unsere lustige Witwe” by Franz Lehár,
registered on the CopyrightChains blockchain with CopyrightID
0xface0df06ec98714444ae26a87f55016215f4020cd7d2048b225c0a49c611426 and independently timestamped
in Bitcoin block 960327 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057230441.
Recording identifiers
- ISRC
- DEF057230441
- Title
- Die lustige Witwe, Act III: Dialogue. Valencienne, unsere lustige Witwe
- Artist
- Franz Lehár
- CopyrightID (CopyrightChains transaction hash)
0xface0df06ec98714444ae26a87f55016215f4020cd7d2048b225c0a49c611426
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T00:26:26+00:00
- Bitcoin block
- 960327
- Canonical record hash
sha256:00c13b3e94aa3e94b92bb66036b07ec7f9dbd3d0683d57336aa5eac023dcdd2d- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057230441
- Bitcoin block existence check
- https://blockstream.info/api/block/960327
Full record
Track page: Die lustige Witwe, Act III: Dialogue. Valencienne, unsere lustige Witwe · Machine-readable JSON-LD