ISRC QM6N21480765
Verified recording
QM6N21480765 is “Clarinet Quintet in A Major, K. 581: II. Larghetto” by Wolfgang Amadeus Mozart,
registered on the CopyrightChains blockchain with CopyrightID
0x96e2b8fba2367d5b162d525aa923084a71ad3455523ad36b05845cbe2599b82a and independently timestamped
in Bitcoin block 957120 on 2026-07-08.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N21480765.
Recording identifiers
- ISRC
- QM6N21480765
- Title
- Clarinet Quintet in A Major, K. 581: II. Larghetto
- Artist
- Wolfgang Amadeus Mozart
- CopyrightID (CopyrightChains transaction hash)
0x96e2b8fba2367d5b162d525aa923084a71ad3455523ad36b05845cbe2599b82a
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:22:41+00:00
- Bitcoin block
- 957120
- Canonical record hash
sha256:3cb941cdba5aa30bebd6b13601cb055c330efb3e1362026188e8f1e935abe8a0- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N21480765
- Bitcoin block existence check
- https://blockstream.info/api/block/957120
Full record
Track page: Clarinet Quintet in A Major, K. 581: II. Larghetto · Machine-readable JSON-LD