ISRC USUM72215138
Verified recording
USUM72215138 is “How Could I Be Such A Fool - Live In Ljubljana, November 22, 1975” by Frank Zappa,
registered on the CopyrightChains blockchain with CopyrightID
0xcb498672d237d0b69fec03d7f8e51b6eb60a1546002efe1eca90d9bb5055f7ac and independently timestamped
in Bitcoin block 957032 on 2026-07-07.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM72215138.
Recording identifiers
- ISRC
- USUM72215138
- Title
- How Could I Be Such A Fool - Live In Ljubljana, November 22, 1975
- Artist
- Frank Zappa
- CopyrightID (CopyrightChains transaction hash)
0xcb498672d237d0b69fec03d7f8e51b6eb60a1546002efe1eca90d9bb5055f7ac
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-07T11:43:09+00:00
- Bitcoin block
- 957032
- Canonical record hash
sha256:85254e821679476276d3d45a0e235c66c3619b734e816c61da68b3c644b1fdc0- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM72215138
- Bitcoin block existence check
- https://blockstream.info/api/block/957032
Full record
Track page: How Could I Be Such A Fool - Live In Ljubljana, November 22, 1975 · Machine-readable JSON-LD