ISRC DEF059503580
Verified recording
DEF059503580 is “Nocturne No. 5 in F-Sharp Major, Op. 15 No. 2” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0xb29d229752726c78ea864cbf7b8ad372ef6e5c3f31e479424fd034b426062072 and independently timestamped
in Bitcoin block 960427 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059503580.
Recording identifiers
- ISRC
- DEF059503580
- Title
- Nocturne No. 5 in F-Sharp Major, Op. 15 No. 2
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0xb29d229752726c78ea864cbf7b8ad372ef6e5c3f31e479424fd034b426062072
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T15:59:18+00:00
- Bitcoin block
- 960427
- Canonical record hash
sha256:0b25bb05aaf1bda177fd34767428c28091eb1cb028f4010ee275baed6d50a3f5- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059503580
- Bitcoin block existence check
- https://blockstream.info/api/block/960427
Full record
Track page: Nocturne No. 5 in F-Sharp Major, Op. 15 No. 2 · Machine-readable JSON-LD