ISRC USQX91702247
Verified recording
USQX91702247 is “Un ballo in maschera, Quadrille, Op. 272” by Johann Strauss II,
registered on the CopyrightChains blockchain with CopyrightID
0x69e8bbc4fcf03792cf4adcc5151ac62963f71d0641b0b0d37715fd7517c1603b and independently timestamped
in Bitcoin block 960384 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USQX91702247.
Recording identifiers
- ISRC
- USQX91702247
- Title
- Un ballo in maschera, Quadrille, Op. 272
- Artist
- Johann Strauss II
- CopyrightID (CopyrightChains transaction hash)
0x69e8bbc4fcf03792cf4adcc5151ac62963f71d0641b0b0d37715fd7517c1603b
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T09:54:03+00:00
- Bitcoin block
- 960384
- Canonical record hash
sha256:a922e31a7ec3180dcfebc609cf3f46c4e12b098da0bf17ec9113050cf5004998- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USQX91702247
- Bitcoin block existence check
- https://blockstream.info/api/block/960384
Full record
Track page: Un ballo in maschera, Quadrille, Op. 272 · Machine-readable JSON-LD