ISRC DEF056200991
Verified recording
DEF056200991 is “Piano Concerto No. 2 in F minor, Op. 21: 1. Maestoso” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0xa7a3356aafa95b1856dbf88ae297c0aff5b1ab5b524aecd2455e253d7f814e4d and independently timestamped
in Bitcoin block 960368 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056200991.
Recording identifiers
- ISRC
- DEF056200991
- Title
- Piano Concerto No. 2 in F minor, Op. 21: 1. Maestoso
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0xa7a3356aafa95b1856dbf88ae297c0aff5b1ab5b524aecd2455e253d7f814e4d
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T08:26:41+00:00
- Bitcoin block
- 960368
- Canonical record hash
sha256:24c846df368b80527bb743835af78b5d78ba6c41c1077965e6c98d147a8267f2- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056200991
- Bitcoin block existence check
- https://blockstream.info/api/block/960368
Full record
Track page: Piano Concerto No. 2 in F minor, Op. 21: 1. Maestoso · Machine-readable JSON-LD