ISRC FRZ209908203
Verified recording
FRZ209908203 is “Chopin: 12 Études, Op. 10: No. 3 in E Major "Tristesse"” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x97a04e2d6281431ac1660c01ee4783f2cffcf6e6d645e4313106581196c6867d 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/FRZ209908203.
Recording identifiers
- ISRC
- FRZ209908203
- Title
- Chopin: 12 Études, Op. 10: No. 3 in E Major "Tristesse"
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x97a04e2d6281431ac1660c01ee4783f2cffcf6e6d645e4313106581196c6867d
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:30:09+00:00
- Bitcoin block
- 956302
- Canonical record hash
sha256:cdba809a4c353597bb6dd24f1abd7297ba82c04fa1029700fdc61475d831f235- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ209908203
- Bitcoin block existence check
- https://blockstream.info/api/block/956302
Full record
Track page: Chopin: 12 Études, Op. 10: No. 3 in E Major "Tristesse" · Machine-readable JSON-LD