ISRC FRZ119401640
Verified recording
FRZ119401640 is “Chopin: Nocturne No. 4 in F Major, Op. 15 No. 1” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x1a4306941acd57bf4ca135ff3f778942ad18b24630894b1f57a427f37a7872af 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/FRZ119401640.
Recording identifiers
- ISRC
- FRZ119401640
- Title
- Chopin: Nocturne No. 4 in F Major, Op. 15 No. 1
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x1a4306941acd57bf4ca135ff3f778942ad18b24630894b1f57a427f37a7872af
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:55:08+00:00
- Bitcoin block
- 956304
- Canonical record hash
sha256:f285ae759526f24ced48bec3814363e3bee11df7a6447d2974ac96398a5d35bf- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ119401640
- Bitcoin block existence check
- https://blockstream.info/api/block/956304
Full record
Track page: Chopin: Nocturne No. 4 in F Major, Op. 15 No. 1 · Machine-readable JSON-LD