ISRC DEF056507152
Verified recording
DEF056507152 is “12 Etudes, Op. 25: No. 11 in A Minor "Winter Wind" - Pt. 2” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x830c4d098c9800f6263a67b8c68d0a83c5dc7e901548f564df64abee4d1be591 and independently timestamped
in Bitcoin block 960459 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056507152.
Recording identifiers
- ISRC
- DEF056507152
- Title
- 12 Etudes, Op. 25: No. 11 in A Minor "Winter Wind" - Pt. 2
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x830c4d098c9800f6263a67b8c68d0a83c5dc7e901548f564df64abee4d1be591
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T20:22:46+00:00
- Bitcoin block
- 960459
- Canonical record hash
sha256:ed12bc30de9944749d2c934e7035da6e17f483b5b8b50565ee3e4b35320438b3- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056507152
- Bitcoin block existence check
- https://blockstream.info/api/block/960459
Full record
Track page: 12 Etudes, Op. 25: No. 11 in A Minor "Winter Wind" - Pt. 2 · Machine-readable JSON-LD