ISRC FRZ119506350
Verified recording
FRZ119506350 is “Piano Sonata No. 2 in B-Flat Minor, Op. 35: I. Grave” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0xf045a6ddb87e1e74c00454a7d76f6548ed4815599db1ce013c6d62371774649a and independently timestamped
in Bitcoin block 957118 on 2026-07-08.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ119506350.
Recording identifiers
- ISRC
- FRZ119506350
- Title
- Piano Sonata No. 2 in B-Flat Minor, Op. 35: I. Grave
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0xf045a6ddb87e1e74c00454a7d76f6548ed4815599db1ce013c6d62371774649a
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:354051547a7d88776e39e30515c00256ed85f9db7e827aece6f4670e42bdf168- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ119506350
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: Piano Sonata No. 2 in B-Flat Minor, Op. 35: I. Grave · Machine-readable JSON-LD