ISRC USUM72303660
Verified recording
USUM72303660 is “Polly - Live In Los Angeles, Great Western Forum - December 30, 1993” by Nirvana,
registered on the CopyrightChains blockchain with CopyrightID
0xf9e9d741a9f53adc96409bddf3046fdace10799ebdf9d67554542dc2fdbcd305 and independently timestamped
in Bitcoin block 953520 on 2026-06-13.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM72303660.
Recording identifiers
- ISRC
- USUM72303660
- Title
- Polly - Live In Los Angeles, Great Western Forum - December 30, 1993
- Artist
- Nirvana
- CopyrightID (CopyrightChains transaction hash)
0xf9e9d741a9f53adc96409bddf3046fdace10799ebdf9d67554542dc2fdbcd305
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-06-13T13:32:09+00:00
- Bitcoin block
- 953520
- Canonical record hash
sha256:58a4749969141b4875da8a8c2be2bd30ca9e66c80a134ce4a7e7f41be7b1ac6c- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM72303660
- Bitcoin block existence check
- https://blockstream.info/api/block/953520
Full record
Track page: Polly - Live In Los Angeles, Great Western Forum - December 30, 1993 · Machine-readable JSON-LD