ISRC NLA509012270
Verified recording
NLA509012270 is “Clarinet Quintet in A, K.581: 2. Larghetto - Edit” by Wolfgang Amadeus Mozart,
registered on the CopyrightChains blockchain with CopyrightID
0x7449f5167b2adae7dda49593f5f9c734179e6f40cd22370baa4401e2163c33b6 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/NLA509012270.
Recording identifiers
- ISRC
- NLA509012270
- Title
- Clarinet Quintet in A, K.581: 2. Larghetto - Edit
- Artist
- Wolfgang Amadeus Mozart
- CopyrightID (CopyrightChains transaction hash)
0x7449f5167b2adae7dda49593f5f9c734179e6f40cd22370baa4401e2163c33b6
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T08:04:30+00:00
- Bitcoin block
- 960225
- Canonical record hash
sha256:4fffa2df91715b8290065b39843d17e4a26e6a9171c5259f5a1c307020bd369d- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA509012270
- Bitcoin block existence check
- https://blockstream.info/api/block/960225
Full record
Track page: Clarinet Quintet in A, K.581: 2. Larghetto - Edit · Machine-readable JSON-LD