ISRC CAY620911312
Verified recording
CAY620911312 is “Tosca, Act I: "Recondita armonia" (Cavaradossi)” by Giacomo Puccini,
registered on the CopyrightChains blockchain with CopyrightID
0x86421a27ed24e84f98520178098ba103fa34c8f3bdfcea86a546e788153faeb3 and independently timestamped
in Bitcoin block 960410 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAY620911312.
Recording identifiers
- ISRC
- CAY620911312
- Title
- Tosca, Act I: "Recondita armonia" (Cavaradossi)
- Artist
- Giacomo Puccini
- CopyrightID (CopyrightChains transaction hash)
0x86421a27ed24e84f98520178098ba103fa34c8f3bdfcea86a546e788153faeb3
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T13:50:38+00:00
- Bitcoin block
- 960410
- Canonical record hash
sha256:5a209dc7018a2ca66a372048a404e73c2a4bdf8872c80234e61cda5f426e65ad- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAY620911312
- Bitcoin block existence check
- https://blockstream.info/api/block/960410
Full record
Track page: Tosca, Act I: "Recondita armonia" (Cavaradossi) · Machine-readable JSON-LD