ISRC UK2Y21309287
Verified recording
UK2Y21309287 is “Mazurkas, Op. 68: No. 4 in F Minor” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x167866e646c1268e3715d89e76275969b46a2eb83c1245c97386e145d6d3b01a and independently timestamped
in Bitcoin block 960429 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UK2Y21309287.
Recording identifiers
- ISRC
- UK2Y21309287
- Title
- Mazurkas, Op. 68: No. 4 in F Minor
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x167866e646c1268e3715d89e76275969b46a2eb83c1245c97386e145d6d3b01a
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T16:07:24+00:00
- Bitcoin block
- 960429
- Canonical record hash
sha256:56a757474a5963c5a00952a32ca4d2d428d2e383b1f83a1090373eacf2c8ee39- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UK2Y21309287
- Bitcoin block existence check
- https://blockstream.info/api/block/960429
Full record
Track page: Mazurkas, Op. 68: No. 4 in F Minor · Machine-readable JSON-LD