ISRC USA371452326
Verified recording
USA371452326 is “Nocturne, No. 1 In B-flat Minor” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0xa9ad3d3c8628a5b9a5b611827a5db7a6ba72d2dd301c7d565b22ed555cdfa989 and independently timestamped
in Bitcoin block 960403 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA371452326.
Recording identifiers
- ISRC
- USA371452326
- Title
- Nocturne, No. 1 In B-flat Minor
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0xa9ad3d3c8628a5b9a5b611827a5db7a6ba72d2dd301c7d565b22ed555cdfa989
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T13:04:34+00:00
- Bitcoin block
- 960403
- Canonical record hash
sha256:327b49e215d1f76d99881621d286ed7b2b881e3c48cb73c5d83fcff90e16b3c5- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA371452326
- Bitcoin block existence check
- https://blockstream.info/api/block/960403
Full record
Track page: Nocturne, No. 1 In B-flat Minor · Machine-readable JSON-LD