ISRC DEF066810620
Verified recording
DEF066810620 is “The Merry Widow (Die lustige Witwe) / Act 2: Es waren zwei Königskinder” by Franz Lehár,
registered on the CopyrightChains blockchain with CopyrightID
0x503e650d20e5f8f2658f20ae2388db40d0cf5a58a1288df9828c76c84c0c76eb and independently timestamped
in Bitcoin block 960303 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF066810620.
Recording identifiers
- ISRC
- DEF066810620
- Title
- The Merry Widow (Die lustige Witwe) / Act 2: Es waren zwei Königskinder
- Artist
- Franz Lehár
- CopyrightID (CopyrightChains transaction hash)
0x503e650d20e5f8f2658f20ae2388db40d0cf5a58a1288df9828c76c84c0c76eb
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T20:11:13+00:00
- Bitcoin block
- 960303
- Canonical record hash
sha256:6e4a51d9ea75045aeadfa60d3e7d5b0393e0046aa93f3308dfbeecf03f0e1b32- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF066810620
- Bitcoin block existence check
- https://blockstream.info/api/block/960303
Full record
Track page: The Merry Widow (Die lustige Witwe) / Act 2: Es waren zwei Königskinder · Machine-readable JSON-LD