ISRC USUM72215488
Verified recording
USUM72215488 is “Chunga’s Revenge - Live In Zagreb, November 21, 1975” by Frank Zappa,
registered on the CopyrightChains blockchain with CopyrightID
0x907d18cefb386f04a6847c652a626d219b03bf7ee09c448d955d63d45481eb07 and independently timestamped
in Bitcoin block 960193 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM72215488.
Recording identifiers
- ISRC
- USUM72215488
- Title
- Chunga’s Revenge - Live In Zagreb, November 21, 1975
- Artist
- Frank Zappa
- CopyrightID (CopyrightChains transaction hash)
0x907d18cefb386f04a6847c652a626d219b03bf7ee09c448d955d63d45481eb07
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T02:05:19+00:00
- Bitcoin block
- 960193
- Canonical record hash
sha256:f822ca37a11021f2bc4a390b8464f114c5173c5e2a08247427784ebf8c933e2b- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM72215488
- Bitcoin block existence check
- https://blockstream.info/api/block/960193
Full record
Track page: Chunga’s Revenge - Live In Zagreb, November 21, 1975 · Machine-readable JSON-LD