ISRC USA371479393
Verified recording
USA371479393 is “Polonaise in A Minor (Farewell to the Fatherland)” by Michał Kleofas Ogiński,
registered on the CopyrightChains blockchain with CopyrightID
0xfd57783774dfc3bc123fcec569540a72f79bd15e676b97bdb0cd5266afbf33c9 and independently timestamped
in Bitcoin block 956304 on 2026-07-02.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA371479393.
Recording identifiers
- ISRC
- USA371479393
- Title
- Polonaise in A Minor (Farewell to the Fatherland)
- Artist
- Michał Kleofas Ogiński
- CopyrightID (CopyrightChains transaction hash)
0xfd57783774dfc3bc123fcec569540a72f79bd15e676b97bdb0cd5266afbf33c9
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:55:08+00:00
- Bitcoin block
- 956304
- Canonical record hash
sha256:d09154b8bad71ba5ab9c728c7db09d86b12f25096def97143978a375ad16d13e- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA371479393
- Bitcoin block existence check
- https://blockstream.info/api/block/956304
Full record
Track page: Polonaise in A Minor (Farewell to the Fatherland) · Machine-readable JSON-LD