ISRC FRZ149220030
Verified recording
FRZ149220030 is “Nocturnes, Op. 9: III. Allegretto en Si Majeur” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x3cba82519d70c0c393c72b96d12668a293827877ffbcc6a7ecd2dd6748a67eb1 and independently timestamped
in Bitcoin block 956304 on 2026-07-02.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ149220030.
Recording identifiers
- ISRC
- FRZ149220030
- Title
- Nocturnes, Op. 9: III. Allegretto en Si Majeur
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x3cba82519d70c0c393c72b96d12668a293827877ffbcc6a7ecd2dd6748a67eb1
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:55:08+00:00
- Bitcoin block
- 956304
- Canonical record hash
sha256:328d11fe2d026192ad639805dbc9c4ff16d79f02314c35068a37637ca7c4981b- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ149220030
- Bitcoin block existence check
- https://blockstream.info/api/block/956304
Full record
Track page: Nocturnes, Op. 9: III. Allegretto en Si Majeur · Machine-readable JSON-LD