Lounge Act - Boombox Rehearsals

Recording by Nirvana.

Recording identifiers

ISRC
USUM71113514
CopyrightID (CopyrightChains transaction hash)
0x469870e63001d999b74c1ce4a553033c67514cf26355894a7fcad5f5cfd020e2
Copyright registration time
2026-06-09T11:07:56+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:728016e08315ce14166a82898b852a1e73ce3d9eb710d70e8456e4a6ba56cef3

What this proof establishes

This recording belongs to ProofProfile's historical evidence base derived from the pre-2022 AcousticBrainz and MusicBrainz corpus. ISRC is the stable recording-level bridge from that source corpus to the authoritative cc-db-prod track record.

CopyrightChains and Bitcoin OpenTimestamps make the exact committed record independently verifiable today. The cryptographic proof does not by itself establish authorship or ownership of the underlying recording.

Read the complete pre-generative-AI provenance and verification method.