ISRC DEF056507172
Verified recording
DEF056507172 is “Nocturne No. 1 in B-Flat Minor, Op. 9 No. 1 - Pt. 2” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x12e4c11c66016722c3a03053601cfb8999a47d17deb641cef750c24347c0dcc5 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/DEF056507172.
Recording identifiers
- ISRC
- DEF056507172
- Title
- Nocturne No. 1 in B-Flat Minor, Op. 9 No. 1 - Pt. 2
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x12e4c11c66016722c3a03053601cfb8999a47d17deb641cef750c24347c0dcc5
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:04d3ea6a0c3200954406343503b449ceabf4cd01f5974dd0c6be295688603935- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056507172
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: Nocturne No. 1 in B-Flat Minor, Op. 9 No. 1 - Pt. 2 · Machine-readable JSON-LD