I Have to Laugh

Recording by Mudhoney.

Recording identifiers

ISRC
USRE19800376
CopyrightID (CopyrightChains transaction hash)
0x3148e5d5a71da11a5bd3f781a09da77f5fb416388128e90d878a4767213c2c4b
Copyright registration time
2026-06-28T02:14:36+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T16:51:38Z
Bitcoin block
956375
Canonical record hash
sha256:564d401c01eaacd1934898fe50d980b039c5ee2977a94bfb9f45ce3a913d4f6b

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.