Floyd The Barber - Live In Amsterdam, Netherlands/1991

Recording by Nirvana.

Recording identifiers

ISRC
USUG12104001
CopyrightID (CopyrightChains transaction hash)
0xd37277c3479247dcbe73a97e8df2b0e8b375f3c7d591f801a3f4d2c64b050fc3
Copyright registration time
2026-06-09T23:17:23+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T13:32:09Z
Bitcoin block
953520
Canonical record hash
sha256:3c3cdf5272d8f43950fbeb1b6f1f3cbb4b0c4f631981336de04534ca9c3ce530

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.