ISRC USZGD9500418
Verified recording
USZGD9500418 is “Nocturne in E Minor, Op. 72 No. 1” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0xf4432a2c14f80a4d03b955f649de6f69e4c38f94b50a0377b61ac043b48a4697 and independently timestamped
in Bitcoin block 960203 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USZGD9500418.
Recording identifiers
- ISRC
- USZGD9500418
- Title
- Nocturne in E Minor, Op. 72 No. 1
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0xf4432a2c14f80a4d03b955f649de6f69e4c38f94b50a0377b61ac043b48a4697
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T03:35:13+00:00
- Bitcoin block
- 960203
- Canonical record hash
sha256:aaf2b7f2d53f982b15d5fe36e05a999e4666b1c82c5b57c46b9efccb8fe353c8- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USZGD9500418
- Bitcoin block existence check
- https://blockstream.info/api/block/960203
Full record
Track page: Nocturne in E Minor, Op. 72 No. 1 · Machine-readable JSON-LD