ISRC FRZ111001581
Verified recording
FRZ111001581 is “Chopin: 12 Études, Op. 10: No. 3 in E Major "Tristesse"” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0xdb30498809b889f18b65c773ba1be115f7b4bec5ddaf263287cd4e21ceddb714 and independently timestamped
in Bitcoin block 960160 on 2026-07-29.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ111001581.
Recording identifiers
- ISRC
- FRZ111001581
- Title
- Chopin: 12 Études, Op. 10: No. 3 in E Major "Tristesse"
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0xdb30498809b889f18b65c773ba1be115f7b4bec5ddaf263287cd4e21ceddb714
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-29T22:48:59+00:00
- Bitcoin block
- 960160
- Canonical record hash
sha256:434ba002c1e6d7908ae96a74568a535cf8b6749dc8e35ceb11eb3ca7facd4341- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ111001581
- Bitcoin block existence check
- https://blockstream.info/api/block/960160
Full record
Track page: Chopin: 12 Études, Op. 10: No. 3 in E Major "Tristesse" · Machine-readable JSON-LD