ISRC CALC40900091
Verified recording
CALC40900091 is “Concertino No. 2, Op. 13 - II. Andante” by André Mathieu,
registered on the CopyrightChains blockchain with CopyrightID
0xbf321d1b8ab25f3744e6810cbd8abaf7d3faae9a2175e2b48300d7bf79f17ba2 and independently timestamped
in Bitcoin block 956889 on 2026-07-06.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CALC40900091.
Recording identifiers
- ISRC
- CALC40900091
- Title
- Concertino No. 2, Op. 13 - II. Andante
- Artist
- André Mathieu
- CopyrightID (CopyrightChains transaction hash)
0xbf321d1b8ab25f3744e6810cbd8abaf7d3faae9a2175e2b48300d7bf79f17ba2
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-06T06:56:49+00:00
- Bitcoin block
- 956889
- Canonical record hash
sha256:a34c39921fa756eb078e46ed4134b6108817090788af6a8373bf17eb3fc0b798- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CALC40900091
- Bitcoin block existence check
- https://blockstream.info/api/block/956889
Full record
Track page: Concertino No. 2, Op. 13 - II. Andante · Machine-readable JSON-LD