ISRC CALC42200501
Verified recording
CALC42200501 is “Violin Sonata No. 1 in A Minor, Op. 105: I. Mit leidenschaftlichem ausdruck” by Robert Schumann,
registered on the CopyrightChains blockchain with CopyrightID
0xb414b0e9e6bc9878ae0afaf1c7d3272bc9f477774c6a8c73a86ebba8dcd9cd23 and independently timestamped
in Bitcoin block 956304 on 2026-07-02.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CALC42200501.
Recording identifiers
- ISRC
- CALC42200501
- Title
- Violin Sonata No. 1 in A Minor, Op. 105: I. Mit leidenschaftlichem ausdruck
- Artist
- Robert Schumann
- CopyrightID (CopyrightChains transaction hash)
0xb414b0e9e6bc9878ae0afaf1c7d3272bc9f477774c6a8c73a86ebba8dcd9cd23
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:55:08+00:00
- Bitcoin block
- 956304
- Canonical record hash
sha256:17b0682140b607efc209ff98962c8d18b475993eefaf366caffbeeb7e31bb13f- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CALC42200501
- Bitcoin block existence check
- https://blockstream.info/api/block/956304
Full record
Track page: Violin Sonata No. 1 in A Minor, Op. 105: I. Mit leidenschaftlichem ausdruck · Machine-readable JSON-LD