ISRC DEF059603323
Verified recording
DEF059603323 is “Impromptu No. 1 in A-Flat, Op. 29 - Pt. 3” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0xcce592c5f0ccec1fb90c85e4fe9357d760fa4f7ea94c7ee456d69fe07cb4a542 and independently timestamped
in Bitcoin block 960370 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059603323.
Recording identifiers
- ISRC
- DEF059603323
- Title
- Impromptu No. 1 in A-Flat, Op. 29 - Pt. 3
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0xcce592c5f0ccec1fb90c85e4fe9357d760fa4f7ea94c7ee456d69fe07cb4a542
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T08:38:45+00:00
- Bitcoin block
- 960370
- Canonical record hash
sha256:f750daf42f2716ce2311eb3c52e9739878e8e7f0516eaa5264bec26ae3d228af- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059603323
- Bitcoin block existence check
- https://blockstream.info/api/block/960370
Full record
Track page: Impromptu No. 1 in A-Flat, Op. 29 - Pt. 3 · Machine-readable JSON-LD