ISRC DEF066810660
Verified recording
DEF066810660 is “The Merry Widow (Die lustige Witwe) / Act 3: Das hat Rass'” by Franz Lehár,
registered on the CopyrightChains blockchain with CopyrightID
0xc206e77fb089a24bfd3514bf70cb9564bfe430d2dc454f743dd2c697b58a6228 and independently timestamped
in Bitcoin block 960247 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF066810660.
Recording identifiers
- ISRC
- DEF066810660
- Title
- The Merry Widow (Die lustige Witwe) / Act 3: Das hat Rass'
- Artist
- Franz Lehár
- CopyrightID (CopyrightChains transaction hash)
0xc206e77fb089a24bfd3514bf70cb9564bfe430d2dc454f743dd2c697b58a6228
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T10:42:33+00:00
- Bitcoin block
- 960247
- Canonical record hash
sha256:8cd63f50d8831df66c92f0e333250a66ae20d3492afe75e34a39cc661ba94517- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF066810660
- Bitcoin block existence check
- https://blockstream.info/api/block/960247
Full record
Track page: The Merry Widow (Die lustige Witwe) / Act 3: Das hat Rass' · Machine-readable JSON-LD