ISRC USUM72215146
Verified recording
USUM72215146 is “Lonely Little Girl - Live In Zagreb, November 21, 1975” by Frank Zappa,
registered on the CopyrightChains blockchain with CopyrightID
0x6c5f85e13ef7bee063bc89dd65a53ce87b2f817c8bf5c78d4785f53aaea99247 and independently timestamped
in Bitcoin block 960284 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM72215146.
Recording identifiers
- ISRC
- USUM72215146
- Title
- Lonely Little Girl - Live In Zagreb, November 21, 1975
- Artist
- Frank Zappa
- CopyrightID (CopyrightChains transaction hash)
0x6c5f85e13ef7bee063bc89dd65a53ce87b2f817c8bf5c78d4785f53aaea99247
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T17:23:26+00:00
- Bitcoin block
- 960284
- Canonical record hash
sha256:7f0b6487ed6d74da993fa82852188374af2fb57ed593cf398d6bc9a2b254777c- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM72215146
- Bitcoin block existence check
- https://blockstream.info/api/block/960284
Full record
Track page: Lonely Little Girl - Live In Zagreb, November 21, 1975 · Machine-readable JSON-LD