ISRC CALC42210014
Verified recording
CALC42210014 is “Concerto No. 2 in D Major for Cello, Strings, and Continuo, L. 10: IV. Fuga” by Leonardo Leo,
registered on the CopyrightChains blockchain with CopyrightID
0xa4db8e1f4b59527ffcd6693c604038e78d40a3535360c5712a84f76c6fadc185 and independently timestamped
in Bitcoin block 960225 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CALC42210014.
Recording identifiers
- ISRC
- CALC42210014
- Title
- Concerto No. 2 in D Major for Cello, Strings, and Continuo, L. 10: IV. Fuga
- Artist
- Leonardo Leo
- CopyrightID (CopyrightChains transaction hash)
0xa4db8e1f4b59527ffcd6693c604038e78d40a3535360c5712a84f76c6fadc185
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T08:04:30+00:00
- Bitcoin block
- 960225
- Canonical record hash
sha256:c0f3c80bd57cf891f818865e0319dd8bb7bf1881d1a77110f2892cd690882743- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CALC42210014
- Bitcoin block existence check
- https://blockstream.info/api/block/960225
Full record
Track page: Concerto No. 2 in D Major for Cello, Strings, and Continuo, L. 10: IV. Fuga · Machine-readable JSON-LD