ISRC CAJ720012620
Verified recording
CAJ720012620 is “Cello Concerto No. 1 in A Major: III. Larghetto A Mezza Voce” by Leonardo Leo,
registered on the CopyrightChains blockchain with CopyrightID
0xf7b90fc00679adcbb4b635ff9b0151491fc66c676b7acc46153abb8b7f01dc48 and independently timestamped
in Bitcoin block 960481 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAJ720012620.
Recording identifiers
- ISRC
- CAJ720012620
- Title
- Cello Concerto No. 1 in A Major: III. Larghetto A Mezza Voce
- Artist
- Leonardo Leo
- CopyrightID (CopyrightChains transaction hash)
0xf7b90fc00679adcbb4b635ff9b0151491fc66c676b7acc46153abb8b7f01dc48
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T23:51:35+00:00
- Bitcoin block
- 960481
- Canonical record hash
sha256:ac663977759d8cf75e2c6d3f492620784db83d18dbf394880cf48b12afac7361- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAJ720012620
- Bitcoin block existence check
- https://blockstream.info/api/block/960481
Full record
Track page: Cello Concerto No. 1 in A Major: III. Larghetto A Mezza Voce · Machine-readable JSON-LD