ISRC GBF077940510
Verified recording
GBF077940510 is “Mazurka in B-Flat Major, KK IIa/3” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x20f749cf1aaaddbaa2eb1ca990bfb6d9a31e5bc35ac1c5d1190fe7af0cc83276 and independently timestamped
in Bitcoin block 960216 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077940510.
Recording identifiers
- ISRC
- GBF077940510
- Title
- Mazurka in B-Flat Major, KK IIa/3
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x20f749cf1aaaddbaa2eb1ca990bfb6d9a31e5bc35ac1c5d1190fe7af0cc83276
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T06:39:12+00:00
- Bitcoin block
- 960216
- Canonical record hash
sha256:a7db9833332efcc9e12bc94d38524dd6eb58931b2b3d2cb832756032ae37410e- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077940510
- Bitcoin block existence check
- https://blockstream.info/api/block/960216
Full record
Track page: Mazurka in B-Flat Major, KK IIa/3 · Machine-readable JSON-LD