ISRC DEF056507173
Verified recording
DEF056507173 is “Nocturne No. 1 in B-Flat Minor, Op. 9 No. 1 - Pt. 3” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x10781d2db4aea3f9b2de75b3df50005d48a59f7f7e09c7a9ac8ae5efd8d80612 and independently timestamped
in Bitcoin block 960340 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056507173.
Recording identifiers
- ISRC
- DEF056507173
- Title
- Nocturne No. 1 in B-Flat Minor, Op. 9 No. 1 - Pt. 3
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x10781d2db4aea3f9b2de75b3df50005d48a59f7f7e09c7a9ac8ae5efd8d80612
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T03:15:04+00:00
- Bitcoin block
- 960340
- Canonical record hash
sha256:d992ddc80472b5cf4fc31919dfd55c47a7ac0265cdb253e918a1b03121a89ec1- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056507173
- Bitcoin block existence check
- https://blockstream.info/api/block/960340
Full record
Track page: Nocturne No. 1 in B-Flat Minor, Op. 9 No. 1 - Pt. 3 · Machine-readable JSON-LD