ISRC DEF066810650
Verified recording
DEF066810650 is “The Merry Widow (Die lustige Witwe) / Act 3: Duett: "Lippen schweigen"” by Franz Lehár,
registered on the CopyrightChains blockchain with CopyrightID
0xc5b4277a6b914be0a2b0804697f676276f8079136b08c81723fb68835166cb73 and independently timestamped
in Bitcoin block 953528 on 2026-06-13.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF066810650.
Recording identifiers
- ISRC
- DEF066810650
- Title
- The Merry Widow (Die lustige Witwe) / Act 3: Duett: "Lippen schweigen"
- Artist
- Franz Lehár
- CopyrightID (CopyrightChains transaction hash)
0xc5b4277a6b914be0a2b0804697f676276f8079136b08c81723fb68835166cb73
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-06-13T15:41:10+00:00
- Bitcoin block
- 953528
- Canonical record hash
sha256:3fc3b8727e1053336751765f10b2193b52f99d90e3c67faacd31c8f203830b58- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF066810650
- Bitcoin block existence check
- https://blockstream.info/api/block/953528
Full record
Track page: The Merry Widow (Die lustige Witwe) / Act 3: Duett: "Lippen schweigen" · Machine-readable JSON-LD