ISRC GBF077311906
Verified recording
GBF077311906 is “Piano Sonata No. 11 in A Major, K. 331: 1e. Variation 5” by Wolfgang Amadeus Mozart,
registered on the CopyrightChains blockchain with CopyrightID
0x601f270c99bb3c2d5e1a17d6075729fb8cb25b04bd424195c06edfa70a3a48ba and independently timestamped
in Bitcoin block 960187 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077311906.
Recording identifiers
- ISRC
- GBF077311906
- Title
- Piano Sonata No. 11 in A Major, K. 331: 1e. Variation 5
- Artist
- Wolfgang Amadeus Mozart
- CopyrightID (CopyrightChains transaction hash)
0x601f270c99bb3c2d5e1a17d6075729fb8cb25b04bd424195c06edfa70a3a48ba
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T01:34:28+00:00
- Bitcoin block
- 960187
- Canonical record hash
sha256:3c45fa94d377878bd04da31c97e17a56cf8fa022ee0164f6f6f53e9cf5565fce- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077311906
- Bitcoin block existence check
- https://blockstream.info/api/block/960187
Full record
Track page: Piano Sonata No. 11 in A Major, K. 331: 1e. Variation 5 · Machine-readable JSON-LD