Dumb - 2013 Mix

Recording by Nirvana.

Recording identifiers

ISRC
USUM71309359
CopyrightID (CopyrightChains transaction hash)
0xdb958d593bff564d3e04f30b81fbb7e2051bca7e307b03cf20c44647c1b62b92
Copyright registration time
2026-06-05T20:35:38+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T13:32:09Z
Bitcoin block
953520
Canonical record hash
sha256:788994f2b84e4296e93957762098b9f8ae1b34968e455537e00cfeaf7b5ff3f6

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.