Pennyroyal Tea
Recording by Nirvana.
Recording identifiers
- ISRC
- USGF19960709
- CopyrightID (CopyrightChains transaction hash)
- 0x126f07b92a919ce70f330c1f46708062c53c95ee72bd803f2653314aa7227e2c
- Copyright registration time
- 2026-06-02T21:01:27+00:00
OpenTimestamps proof evidence
- Bitcoin-attested timestamp
- 2026-06-13T12:47:07Z
- Bitcoin block
- 953513
- Canonical record hash
- sha256:d7d2d3ea0b8fbcedd4aeaa4c8e2588fe5c3cffc1ee1808a7a94e56fcad616cc6
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.