ISRC FRZ077401430
Verified recording
FRZ077401430 is “Mazurka No. 40 In F Minor Opus 63 No. 2” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0xdd94dc143c4471a51a5276bdaa0ad0db6d85e12ae832aafbbad231a24271759b and independently timestamped
in Bitcoin block 960422 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ077401430.
Recording identifiers
- ISRC
- FRZ077401430
- Title
- Mazurka No. 40 In F Minor Opus 63 No. 2
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0xdd94dc143c4471a51a5276bdaa0ad0db6d85e12ae832aafbbad231a24271759b
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T15:27:29+00:00
- Bitcoin block
- 960422
- Canonical record hash
sha256:28bc0d9a1f8a1f8c9480652cddb92d6881002b1ff2be9c004872b4bfa9efe018- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ077401430
- Bitcoin block existence check
- https://blockstream.info/api/block/960422
Full record
Track page: Mazurka No. 40 In F Minor Opus 63 No. 2 · Machine-readable JSON-LD