ISRC FRZ119505950
Verified recording
FRZ119505950 is “Chopin: Nocturne No. 4 in F Major, Op. 15 No. 1” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0xddeffea890a1f3b5e9ec5fe30fd0e869782a4f8d79830190c90c80a1f58202cd and independently timestamped
in Bitcoin block 960273 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ119505950.
Recording identifiers
- ISRC
- FRZ119505950
- Title
- Chopin: Nocturne No. 4 in F Major, Op. 15 No. 1
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0xddeffea890a1f3b5e9ec5fe30fd0e869782a4f8d79830190c90c80a1f58202cd
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T15:42:38+00:00
- Bitcoin block
- 960273
- Canonical record hash
sha256:4b0443933a9887b97ab10fc6092de356b891d30d72f7300662aada2886db3e55- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ119505950
- Bitcoin block existence check
- https://blockstream.info/api/block/960273
Full record
Track page: Chopin: Nocturne No. 4 in F Major, Op. 15 No. 1 · Machine-readable JSON-LD