ISRC AUAB09950445
Verified recording
AUAB09950445 is “The Merry Widow, Act II: Opening Polonaise (Arr. John Lanchbery and Alan Abbott)” by Franz Lehár,
registered on the CopyrightChains blockchain with CopyrightID
0xda0f1df7dc47409376b6bd93ca1c476f550dea989ec9c55a4857737d46db4fe4 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/AUAB09950445.
Recording identifiers
- ISRC
- AUAB09950445
- Title
- The Merry Widow, Act II: Opening Polonaise (Arr. John Lanchbery and Alan Abbott)
- Artist
- Franz Lehár
- CopyrightID (CopyrightChains transaction hash)
0xda0f1df7dc47409376b6bd93ca1c476f550dea989ec9c55a4857737d46db4fe4
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:22:41+00:00
- Bitcoin block
- 957120
- Canonical record hash
sha256:f0c0c8d3fd03af06168f3316996dd2dd844e20268e721e01a90f14f72de15185- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUAB09950445
- Bitcoin block existence check
- https://blockstream.info/api/block/957120
Full record
Track page: The Merry Widow, Act II: Opening Polonaise (Arr. John Lanchbery and Alan Abbott) · Machine-readable JSON-LD