ISRC DEF057230427
Verified recording
DEF057230427 is “Die lustige Witwe, Act II: Accompanied Dialogue. Ach! Sehen Sie” by Franz Lehár,
registered on the CopyrightChains blockchain with CopyrightID
0xa3207a4e6a72a18c7a6d09705e2fadbd71b893e625ca8c454b62b0b9331f7a29 and independently timestamped
in Bitcoin block 960273 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057230427.
Recording identifiers
- ISRC
- DEF057230427
- Title
- Die lustige Witwe, Act II: Accompanied Dialogue. Ach! Sehen Sie
- Artist
- Franz Lehár
- CopyrightID (CopyrightChains transaction hash)
0xa3207a4e6a72a18c7a6d09705e2fadbd71b893e625ca8c454b62b0b9331f7a29
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T15:42:38+00:00
- Bitcoin block
- 960273
- Canonical record hash
sha256:99ca727ff582ed134e746f1d80ae8697c4d09c73fe40438b105c7677065db613- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057230427
- Bitcoin block existence check
- https://blockstream.info/api/block/960273
Full record
Track page: Die lustige Witwe, Act II: Accompanied Dialogue. Ach! Sehen Sie · Machine-readable JSON-LD