Breed

Recording by Nirvana.

Recording identifiers

ISRC
USGF19942504
Release date of the album this recording appears on
1991-09-26
CopyrightID (CopyrightChains transaction hash)
0xdb0ac4916d5f73ffacb2f5e55d73a322c6b9ed067bec85866bd2c2d70b7ce2c3
Copyright registration time
2026-06-01T08:54:17+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:47:07Z
Bitcoin block
953513
Canonical record hash
sha256:f27637b6d346677c7feeae803c24b83fc927e9729b48e0eec0f0b8a5294aa9a2

What this proof establishes

This recording was released in 1991, before generative AI. ProofProfile's catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and 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.