ISRC FRZ200003807
Verified recording
FRZ200003807 is “Rachmaninov: 10 Preludes, Op. 23: No. 7 in C Minor” by Sergei Rachmaninoff,
registered on the CopyrightChains blockchain with CopyrightID
0xca1c43266dd5d8ea5f86f162981d22bc49f664b184ef07869fd125fc2d27d0e9 and independently timestamped
in Bitcoin block 959155 on 2026-07-22.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ200003807.
Recording identifiers
- ISRC
- FRZ200003807
- Title
- Rachmaninov: 10 Preludes, Op. 23: No. 7 in C Minor
- Artist
- Sergei Rachmaninoff
- CopyrightID (CopyrightChains transaction hash)
0xca1c43266dd5d8ea5f86f162981d22bc49f664b184ef07869fd125fc2d27d0e9
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-22T16:43:41+00:00
- Bitcoin block
- 959155
- Canonical record hash
sha256:468aba6991bdad51afc3885d801682b85c0ae284031e1fbd35713d8541df8083- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ200003807
- Bitcoin block existence check
- https://blockstream.info/api/block/959155
Full record
Track page: Rachmaninov: 10 Preludes, Op. 23: No. 7 in C Minor · Machine-readable JSON-LD