ISRC FRU621530204
Verified recording
FRU621530204 is “Sonata for violin and viola” by Johann Heinrich Schmelzer,
registered on the CopyrightChains blockchain with CopyrightID
0x2be9789ba9167551ba76984f6e970105f98c8ca3a1a24e9ec02b014d62e13bc4 and independently timestamped
in Bitcoin block 960145 on 2026-07-29.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRU621530204.
Recording identifiers
- ISRC
- FRU621530204
- Title
- Sonata for violin and viola
- Artist
- Johann Heinrich Schmelzer
- CopyrightID (CopyrightChains transaction hash)
0x2be9789ba9167551ba76984f6e970105f98c8ca3a1a24e9ec02b014d62e13bc4
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-29T21:13:37+00:00
- Bitcoin block
- 960145
- Canonical record hash
sha256:9b99737beb0023cf0d76ffc9dbb4b380b82cdc367be87c9605a7795b8d11b522- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRU621530204
- Bitcoin block existence check
- https://blockstream.info/api/block/960145
Full record
Track page: Sonata for violin and viola · Machine-readable JSON-LD