ISRC DEF059503620
Verified recording
DEF059503620 is “Nocturne No. 9 in B Major, Op. 32, No. 1” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0xafa067e06a6c152772545e9e3fe4519c33486aed8b17bf0817c6fa83022a4aef and independently timestamped
in Bitcoin block 960441 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059503620.
Recording identifiers
- ISRC
- DEF059503620
- Title
- Nocturne No. 9 in B Major, Op. 32, No. 1
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0xafa067e06a6c152772545e9e3fe4519c33486aed8b17bf0817c6fa83022a4aef
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T17:29:52+00:00
- Bitcoin block
- 960441
- Canonical record hash
sha256:d14660c657c0e63815d2049cca17e2bd5beb8aa8f5e144dd5bea80f87ce7b8ce- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059503620
- Bitcoin block existence check
- https://blockstream.info/api/block/960441
Full record
Track page: Nocturne No. 9 in B Major, Op. 32, No. 1 · Machine-readable JSON-LD