ISRC DEE212145937
Verified recording
DEE212145937 is “Grand Polonaise in E-Flat Major, Op. 22: II. Polonaise” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0xa3590515201cef9903b3ffe4d1504ff4cb15959e956c33a6845a3ecf3156e13a 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/DEE212145937.
Recording identifiers
- ISRC
- DEE212145937
- Title
- Grand Polonaise in E-Flat Major, Op. 22: II. Polonaise
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0xa3590515201cef9903b3ffe4d1504ff4cb15959e956c33a6845a3ecf3156e13a
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T02:19:15+00:00
- Bitcoin block
- 960334
- Canonical record hash
sha256:6971d185583bab852d375123edc8a55ee63cbc0f9eb143559a03f92e8accf761- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE212145937
- Bitcoin block existence check
- https://blockstream.info/api/block/960334
Full record
Track page: Grand Polonaise in E-Flat Major, Op. 22: II. Polonaise · Machine-readable JSON-LD