ISRC DEF066810590
Verified recording
DEF066810590 is “The Merry Widow (Die lustige Witwe) / Act 2: Lied vom dummen Reiter” by Franz Lehár,
registered on the CopyrightChains blockchain with CopyrightID
0x7e9e090c0178bd815f476deacad44027fd513f43d3d5982b17312c5f38a363aa 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/DEF066810590.
Recording identifiers
- ISRC
- DEF066810590
- Title
- The Merry Widow (Die lustige Witwe) / Act 2: Lied vom dummen Reiter
- Artist
- Franz Lehár
- CopyrightID (CopyrightChains transaction hash)
0x7e9e090c0178bd815f476deacad44027fd513f43d3d5982b17312c5f38a363aa
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T00:26:26+00:00
- Bitcoin block
- 960327
- Canonical record hash
sha256:1c96e2c030c1ff75b06b90715c62e92abff8747209ed173f482a5fe4f727da39- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF066810590
- Bitcoin block existence check
- https://blockstream.info/api/block/960327
Full record
Track page: The Merry Widow (Die lustige Witwe) / Act 2: Lied vom dummen Reiter · Machine-readable JSON-LD