ISRC UK2Y21901949
Verified recording
UK2Y21901949 is “Mazurkas, Op. 50: No. 3 in C-Sharp Minor” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x7ec3757c82e241a8283906bdd1cdfc904cf04dce2a6b4fd2637334e0428b79e8 and independently timestamped
in Bitcoin block 960481 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UK2Y21901949.
Recording identifiers
- ISRC
- UK2Y21901949
- Title
- Mazurkas, Op. 50: No. 3 in C-Sharp Minor
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x7ec3757c82e241a8283906bdd1cdfc904cf04dce2a6b4fd2637334e0428b79e8
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T23:51:35+00:00
- Bitcoin block
- 960481
- Canonical record hash
sha256:457fa394eed20250201ddbdad2c12e2f3dec4328995429cc80425dd9652d7651- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UK2Y21901949
- Bitcoin block existence check
- https://blockstream.info/api/block/960481
Full record
Track page: Mazurkas, Op. 50: No. 3 in C-Sharp Minor · Machine-readable JSON-LD