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
2026-06-13T12:47:07Z
Bitcoin block
953513
Canonical record hash
sha256:faafffe6da3b2be5a12ca94f7b54bf9463483251706f86a533e11ed85a285431

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.