ISRC DEF056507174
Verified recording
DEF056507174 is “Nocturne No. 1 in B-Flat Minor, Op. 9 No. 1 - Pt. 4” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0xb7007aca47cc0cf6cbb6d1e576cd43c5873cacbcf5fc52bb376c6319cfc4dba2 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/DEF056507174.
Recording identifiers
- ISRC
- DEF056507174
- Title
- Nocturne No. 1 in B-Flat Minor, Op. 9 No. 1 - Pt. 4
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0xb7007aca47cc0cf6cbb6d1e576cd43c5873cacbcf5fc52bb376c6319cfc4dba2
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:e7525b34d05ebefcde757e2db50000c712171d840acbdfd147cae459c21dfc2f- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056507174
- 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. 4 · Machine-readable JSON-LD