ISRC FRZ209908209
Verified recording
FRZ209908209 is “Chopin: 12 Études, Op. 10: No. 9 in F Minor” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0xb992756986eed7cbce75f5e084bca852361842e74be02815bc18ea543339e8a0 and independently timestamped
in Bitcoin block 957052 on 2026-07-07.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ209908209.
Recording identifiers
- ISRC
- FRZ209908209
- Title
- Chopin: 12 Études, Op. 10: No. 9 in F Minor
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0xb992756986eed7cbce75f5e084bca852361842e74be02815bc18ea543339e8a0
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-07T14:50:41+00:00
- Bitcoin block
- 957052
- Canonical record hash
sha256:e89db61aca2dc2a5afd9e5797b369c4c442a69d4d8c723043b91e95a26bcb89f- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ209908209
- Bitcoin block existence check
- https://blockstream.info/api/block/957052
Full record
Track page: Chopin: 12 Études, Op. 10: No. 9 in F Minor · Machine-readable JSON-LD