ISRC QZZ8A2473981
Verified recording
QZZ8A2473981 is “Nocturne Op. 9 No. 2 - Chopin - Classical Study Music” by Classical Study Music,
registered on the CopyrightChains blockchain with CopyrightID
0x64a71c3825ab229f1a24ccd9535c4e8762a332a55d464b9e6ff4974050d825ca and independently timestamped
in Bitcoin block 960418 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ8A2473981.
Recording identifiers
- ISRC
- QZZ8A2473981
- Title
- Nocturne Op. 9 No. 2 - Chopin - Classical Study Music
- Artist
- Classical Study Music
- CopyrightID (CopyrightChains transaction hash)
0x64a71c3825ab229f1a24ccd9535c4e8762a332a55d464b9e6ff4974050d825ca
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T15:20:15+00:00
- Bitcoin block
- 960418
- Canonical record hash
sha256:c93f19995df302ec9a4ae977b62686bd48b49661f525c79495499840894eb0fe- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ8A2473981
- Bitcoin block existence check
- https://blockstream.info/api/block/960418
Full record
Track page: Nocturne Op. 9 No. 2 - Chopin - Classical Study Music · Machine-readable JSON-LD