ISRC GBAYC9701908
Verified recording
GBAYC9701908 is “Mozart: 12 Clarinet Duets, K. 487: No. 4, Polonaise” by Wolfgang Amadeus Mozart,
registered on the CopyrightChains blockchain with CopyrightID
0xa1259de10d788f3b47095e635705c9e373506f7b351d38b9e0d524839d140e1c and independently timestamped
in Bitcoin block 960468 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9701908.
Recording identifiers
- ISRC
- GBAYC9701908
- Title
- Mozart: 12 Clarinet Duets, K. 487: No. 4, Polonaise
- Artist
- Wolfgang Amadeus Mozart
- CopyrightID (CopyrightChains transaction hash)
0xa1259de10d788f3b47095e635705c9e373506f7b351d38b9e0d524839d140e1c
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T21:25:57+00:00
- Bitcoin block
- 960468
- Canonical record hash
sha256:dafe5ac200758607ff92743d1ce118562e74b3f11073bf46dc3be613ffc51972- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9701908
- Bitcoin block existence check
- https://blockstream.info/api/block/960468
Full record
Track page: Mozart: 12 Clarinet Duets, K. 487: No. 4, Polonaise · Machine-readable JSON-LD