ISRC DEF056507171
Verified recording
DEF056507171 is “Nocturne No. 1 in B-Flat Minor, Op. 9 No. 1 - Pt. 1” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x659be700723f00acb1ed2aebad550ae2c4d6788c6d7de4cf13f6c346767ad312 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/DEF056507171.
Recording identifiers
- ISRC
- DEF056507171
- Title
- Nocturne No. 1 in B-Flat Minor, Op. 9 No. 1 - Pt. 1
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x659be700723f00acb1ed2aebad550ae2c4d6788c6d7de4cf13f6c346767ad312
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:ee28c3df46de5e6a841f3f543a55aa4a3e306603602b8ebf58b6dc7ab09e58ce- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056507171
- 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. 1 · Machine-readable JSON-LD