Kurt Cobain

Recording identifiers

ISRC

QMDA72225883

CopyrightID (CopyrightChains transaction hash)

0x10fe088451c218ba10b2bb4916d464915c96cda1b7b3d1cb3aa3e86c430e9501

Copyright registration time

2026-06-05T12:54:04+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-06-13T12:47:07Z

Bitcoin block

953513

Canonical record hash

sha256:248e4048c618ce5ea6089bc93497a07cc58a5b684b7a3bf1e75690eeca6dba5c

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result

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.