Been A Son - Live In Amsterdam, Netherlands/1991

Recording by Nirvana.

Recording identifiers

ISRC
USGF19610506
CopyrightID (CopyrightChains transaction hash)
0xfd6acee46339e28a71ff494c1e48951c6fdfb0577d9fd4a26de0c53afa3a6897
Copyright registration time
2026-06-07T12:05:16+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:53:06Z
Bitcoin block
953515
Canonical record hash
sha256:f42ca6ec9e22ebe8d86f212c2fd3149e0c74129c86a89c9c3e9ea0523efb0d35

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.