ISRC FRZ209908223
Verified recording
FRZ209908223 is “Chopin: 12 Études, Op. 25: No. 11 in A Minor "Winter Wind"” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0xe7160e7d623541c1069535b7c26aad893fd0e76caaaa6945a83709b9a9458f2a and independently timestamped
in Bitcoin block 956302 on 2026-07-02.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ209908223.
Recording identifiers
- ISRC
- FRZ209908223
- Title
- Chopin: 12 Études, Op. 25: No. 11 in A Minor "Winter Wind"
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0xe7160e7d623541c1069535b7c26aad893fd0e76caaaa6945a83709b9a9458f2a
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:30:09+00:00
- Bitcoin block
- 956302
- Canonical record hash
sha256:0bb1206aa213668df4d14fa4a00c5bce47cc1b2d6d2e6bb7e46b68240be2e3fa- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ209908223
- Bitcoin block existence check
- https://blockstream.info/api/block/956302
Full record
Track page: Chopin: 12 Études, Op. 25: No. 11 in A Minor "Winter Wind" · Machine-readable JSON-LD