ISRC GBQRF1343073
Verified recording
GBQRF1343073 is “Clarinet Quintet in A Major, K. 581 "Stadler": II. Larghetto” by Wolfgang Amadeus Mozart,
registered on the CopyrightChains blockchain with CopyrightID
0x2f751868469f6dfb6ff0105c459d16d7d161d46a9c7ad6d81f6cd1de3f9ceb36 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/GBQRF1343073.
Recording identifiers
- ISRC
- GBQRF1343073
- Title
- Clarinet Quintet in A Major, K. 581 "Stadler": II. Larghetto
- Artist
- Wolfgang Amadeus Mozart
- CopyrightID (CopyrightChains transaction hash)
0x2f751868469f6dfb6ff0105c459d16d7d161d46a9c7ad6d81f6cd1de3f9ceb36
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:4ebeb9ff79afa99e23c5af6208e6a229704cde56d571ca5becd5b99f579203a6- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBQRF1343073
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: Clarinet Quintet in A Major, K. 581 "Stadler": II. Larghetto · Machine-readable JSON-LD