ISRC DEF057230437
Verified recording
DEF057230437 is “Die lustige Witwe, Act III: Dialogue. Exzellenz, Exzellenz, Graf, eine Expreßdepesche!” by Franz Lehár,
registered on the CopyrightChains blockchain with CopyrightID
0x917f5364e5563b4117c0d11412c2ca988a78c48c2223fa089b94732a352a38e2 and independently timestamped
in Bitcoin block 960397 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057230437.
Recording identifiers
- ISRC
- DEF057230437
- Title
- Die lustige Witwe, Act III: Dialogue. Exzellenz, Exzellenz, Graf, eine Expreßdepesche!
- Artist
- Franz Lehár
- CopyrightID (CopyrightChains transaction hash)
0x917f5364e5563b4117c0d11412c2ca988a78c48c2223fa089b94732a352a38e2
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T12:24:41+00:00
- Bitcoin block
- 960397
- Canonical record hash
sha256:2c6df96efaea956cac723468dad9f3c6f7151169b113113b109d67578fde4e80- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057230437
- Bitcoin block existence check
- https://blockstream.info/api/block/960397
Full record
Track page: Die lustige Witwe, Act III: Dialogue. Exzellenz, Exzellenz, Graf, eine Expreßdepesche! · Machine-readable JSON-LD