Retreat

Recording by Kurt Cobain.

Recording identifiers

ISRC
USUM71514607
CopyrightID (CopyrightChains transaction hash)
0x0c4e3e5e319d43790236e2530293ba2ff0380a531084b77bed1c0f3f95f8989d
Copyright registration time
2026-06-09T09:33:13+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T13:32:09Z
Bitcoin block
953520
Canonical record hash
sha256:d6f53f341ba68e0edae14d86b90af0621702640c9a1356ba553b9733a5ed574c

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.