ISRC FRZ050400175
Verified recording
FRZ050400175 is “Etude "Tristesse", Op. 10: No. 3” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x8612a5dd465ed45c39c04c46bcdbeb93d07fecebec6199c85df181c6d7777bd2 and independently timestamped
in Bitcoin block 953528 on 2026-06-13.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ050400175.
Recording identifiers
- ISRC
- FRZ050400175
- Title
- Etude "Tristesse", Op. 10: No. 3
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x8612a5dd465ed45c39c04c46bcdbeb93d07fecebec6199c85df181c6d7777bd2
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-06-13T15:41:10+00:00
- Bitcoin block
- 953528
- Canonical record hash
sha256:6e33765d895fa4b8ef38e0370e7ee475fee5edc26c1c37b36e773a4471e2b5c6- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ050400175
- Bitcoin block existence check
- https://blockstream.info/api/block/953528
Full record
Track page: Etude "Tristesse", Op. 10: No. 3 · Machine-readable JSON-LD