ISRC CALC41800406
Verified recording
CALC41800406 is “Piano Concerto No. 1 in E Minor, Op. 11: III. Rondo. Vivace” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0xed9bffbdd3371b385f2758999acd0586f3f5ac8c6812102497ba3c27697e9fc0 and independently timestamped
in Bitcoin block 960117 on 2026-07-29.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CALC41800406.
Recording identifiers
- ISRC
- CALC41800406
- Title
- Piano Concerto No. 1 in E Minor, Op. 11: III. Rondo. Vivace
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0xed9bffbdd3371b385f2758999acd0586f3f5ac8c6812102497ba3c27697e9fc0
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-29T14:28:24+00:00
- Bitcoin block
- 960117
- Canonical record hash
sha256:483edd898ee1afda00655f1d84710fefb6996f02c316c4496a028ddee82d193b- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CALC41800406
- Bitcoin block existence check
- https://blockstream.info/api/block/960117
Full record
Track page: Piano Concerto No. 1 in E Minor, Op. 11: III. Rondo. Vivace · Machine-readable JSON-LD