ISRC USUM72303699
Verified recording
USUM72303699 is “Heart-Shaped Box - Live In Los Angeles, Great Western Forum - December 30, 1993” by Nirvana,
registered on the CopyrightChains blockchain with CopyrightID
0x25c4b483e5600bcaf8e898f500caa1f9fee9ec5b0821419bf5e4d3d0768b4bcb 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/USUM72303699.
Recording identifiers
- ISRC
- USUM72303699
- Title
- Heart-Shaped Box - Live In Los Angeles, Great Western Forum - December 30, 1993
- Artist
- Nirvana
- CopyrightID (CopyrightChains transaction hash)
0x25c4b483e5600bcaf8e898f500caa1f9fee9ec5b0821419bf5e4d3d0768b4bcb
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-06-13T13:32:09+00:00
- Bitcoin block
- 953520
- Canonical record hash
sha256:8ef6d37d101c7244c49152d203a02df7ff4205df8e8fbef465c76db5b0ba106a- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM72303699
- Bitcoin block existence check
- https://blockstream.info/api/block/953520
Full record
Track page: Heart-Shaped Box - Live In Los Angeles, Great Western Forum - December 30, 1993 · Machine-readable JSON-LD