ISRC AUAB09950441
Verified recording
AUAB09950441 is “The Merry Widow, Act I, Scene 1: Mazurka (Arr. John Lanchbery and Alan Abbott)” by Franz Lehár,
registered on the CopyrightChains blockchain with CopyrightID
0xa62431ecb11c8e2e96a318028f105bc79313a16229b204b8fe425d6f512367a2 and independently timestamped
in Bitcoin block 957120 on 2026-07-08.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUAB09950441.
Recording identifiers
- ISRC
- AUAB09950441
- Title
- The Merry Widow, Act I, Scene 1: Mazurka (Arr. John Lanchbery and Alan Abbott)
- Artist
- Franz Lehár
- CopyrightID (CopyrightChains transaction hash)
0xa62431ecb11c8e2e96a318028f105bc79313a16229b204b8fe425d6f512367a2
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:22:41+00:00
- Bitcoin block
- 957120
- Canonical record hash
sha256:c6520a9fc10fdad2b25fbe6940c3fa30f3bdfd9556f62567490d3551ce692e7e- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUAB09950441
- Bitcoin block existence check
- https://blockstream.info/api/block/957120
Full record
Track page: The Merry Widow, Act I, Scene 1: Mazurka (Arr. John Lanchbery and Alan Abbott) · Machine-readable JSON-LD