ISRC FRZ077401370
Verified recording
FRZ077401370 is “Mazurka No. 34 In C Opus 56 No. 2” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x0b046460924d3a95b53198b89d07ec2af5c33cceffa7d27f556ef723cee5fdab and independently timestamped
in Bitcoin block 960334 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ077401370.
Recording identifiers
- ISRC
- FRZ077401370
- Title
- Mazurka No. 34 In C Opus 56 No. 2
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x0b046460924d3a95b53198b89d07ec2af5c33cceffa7d27f556ef723cee5fdab
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T02:19:15+00:00
- Bitcoin block
- 960334
- Canonical record hash
sha256:e231933c418e32fdee29fdc15797ca3e9797ed5c86f9e0dcf40c42a882a1693b- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ077401370
- Bitcoin block existence check
- https://blockstream.info/api/block/960334
Full record
Track page: Mazurka No. 34 In C Opus 56 No. 2 · Machine-readable JSON-LD