ISRC GBKTX1002887
Verified recording
GBKTX1002887 is “Quintet in A Major for Clarinet, 2 Violins, Viola and Violincello, K. 581: II. Larghetto” by Wolfgang Amadeus Mozart,
registered on the CopyrightChains blockchain with CopyrightID
0x1ef0aede7cd831de5fdd716cd57456f8dac67b02a354b8be917699f684f5400e and independently timestamped
in Bitcoin block 957118 on 2026-07-08.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBKTX1002887.
Recording identifiers
- ISRC
- GBKTX1002887
- Title
- Quintet in A Major for Clarinet, 2 Violins, Viola and Violincello, K. 581: II. Larghetto
- Artist
- Wolfgang Amadeus Mozart
- CopyrightID (CopyrightChains transaction hash)
0x1ef0aede7cd831de5fdd716cd57456f8dac67b02a354b8be917699f684f5400e
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:f657fe16eacf2c9bb1e35370dd8c41e2cb57affa3b7c0bed914cc41e8b35c2bf- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBKTX1002887
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: Quintet in A Major for Clarinet, 2 Violins, Viola and Violincello, K. 581: II. Larghetto · Machine-readable JSON-LD