Blandest - Demo

Recording by Nirvana.

Recording identifiers

ISRC
USSUB0400274
Release date of the album this recording appears on
2005-01-01
CopyrightID (CopyrightChains transaction hash)
0x17238c03553153d9da5e3181afc528f0b269d34322fe84d1b26c2d777a114bb9
Copyright registration time
2026-06-05T15:44:28+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T15:41:10Z
Bitcoin block
953528
Canonical record hash
sha256:1920df0e8d76d349293e9fcbbd72e3f69163ef3f379a87b15ceff2259e86d7bf

What this proof establishes

This recording was released in 2005, 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.