ISRC NOFZS2377050
Verified recording
NOFZS2377050 is “Sonata for Cello and Piano in A Major: I. Allegretto ben moderato” by César Franck,
registered on the CopyrightChains blockchain with CopyrightID
0x4649d16db58f20a4c7d8161d3255e96e95c11c43f2b1f08289d005026e4499b1 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/NOFZS2377050.
Recording identifiers
- ISRC
- NOFZS2377050
- Title
- Sonata for Cello and Piano in A Major: I. Allegretto ben moderato
- Artist
- César Franck
- CopyrightID (CopyrightChains transaction hash)
0x4649d16db58f20a4c7d8161d3255e96e95c11c43f2b1f08289d005026e4499b1
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:f70a862656d9a8e37a317256618f029d4d45b9e0ad8e5d38ef6b08b990143c99- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NOFZS2377050
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: Sonata for Cello and Piano in A Major: I. Allegretto ben moderato · Machine-readable JSON-LD