ISRC DEF059503560
Verified recording
DEF059503560 is “Nocturne No. 3 in B Major, Op. 9, No. 3” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0xa7e79f0f998ea1d77c75f450f023a2e824adee40853aaf54421e8fec7b920f4e and independently timestamped
in Bitcoin block 960503 on 2026-08-01.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059503560.
Recording identifiers
- ISRC
- DEF059503560
- Title
- Nocturne No. 3 in B Major, Op. 9, No. 3
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0xa7e79f0f998ea1d77c75f450f023a2e824adee40853aaf54421e8fec7b920f4e
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-08-01T03:41:24+00:00
- Bitcoin block
- 960503
- Canonical record hash
sha256:504d7e0c0af6a181742dd2d691b7dea93c74f4240cfa8ec6216ed149cc19366f- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059503560
- Bitcoin block existence check
- https://blockstream.info/api/block/960503
Full record
Track page: Nocturne No. 3 in B Major, Op. 9, No. 3 · Machine-readable JSON-LD