ISRC NLA507300491
Verified recording
NLA507300491 is “24 Preludes, Op. 28: No. 20 in C Minor. Largo” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0xfa66c34037f77197bff29dcd737b8e6717ba72b4035a45d1f5823a285fc13970 and independently timestamped
in Bitcoin block 957118 on 2026-07-08.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507300491.
Recording identifiers
- ISRC
- NLA507300491
- Title
- 24 Preludes, Op. 28: No. 20 in C Minor. Largo
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0xfa66c34037f77197bff29dcd737b8e6717ba72b4035a45d1f5823a285fc13970
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:81a51bdb7fc6ca008eeecd819f7fb86c44bb644e06757084f018f88f1754963f- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507300491
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: 24 Preludes, Op. 28: No. 20 in C Minor. Largo · Machine-readable JSON-LD