ISRC DEF058300081
Verified recording
DEF058300081 is “Piano Concerto No. 2 in F Minor, Op. 21: I. Maestoso” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0xb951473b7711edeb097d2fe2971d28be2100a8772a7ac14ac4691252ac6a8712 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/DEF058300081.
Recording identifiers
- ISRC
- DEF058300081
- Title
- Piano Concerto No. 2 in F Minor, Op. 21: I. Maestoso
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0xb951473b7711edeb097d2fe2971d28be2100a8772a7ac14ac4691252ac6a8712
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-29T14:28:24+00:00
- Bitcoin block
- 960117
- Canonical record hash
sha256:c91116c9da82e866964288a0f1aad756e9a1a4b41683ed10a8bc7b01833313d3- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058300081
- Bitcoin block existence check
- https://blockstream.info/api/block/960117
Full record
Track page: Piano Concerto No. 2 in F Minor, Op. 21: I. Maestoso · Machine-readable JSON-LD