ISRC CAJ721774305
Verified recording
CAJ721774305 is “Concerto pour cor No. 3 en mi bémol majeur, K. 447: II. Romance : Larghetto” by Wolfgang Amadeus Mozart,
registered on the CopyrightChains blockchain with CopyrightID
0xe0fbc6b3f65f16c4f413f6c973804067cf4443dc427958b8b66cff27d8a60d30 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/CAJ721774305.
Recording identifiers
- ISRC
- CAJ721774305
- Title
- Concerto pour cor No. 3 en mi bémol majeur, K. 447: II. Romance : Larghetto
- Artist
- Wolfgang Amadeus Mozart
- CopyrightID (CopyrightChains transaction hash)
0xe0fbc6b3f65f16c4f413f6c973804067cf4443dc427958b8b66cff27d8a60d30
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:55:08+00:00
- Bitcoin block
- 956304
- Canonical record hash
sha256:f4ca91219c868c0c18a69b7340e4e3d4af33edd839a6cf25cf577591e211660e- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAJ721774305
- Bitcoin block existence check
- https://blockstream.info/api/block/956304
Full record
Track page: Concerto pour cor No. 3 en mi bémol majeur, K. 447: II. Romance : Larghetto · Machine-readable JSON-LD