Biko

Recording by Joan Baez.

Recording identifiers

ISRC
USNVE1600009
CopyrightID (CopyrightChains transaction hash)
0xf1c6a54c7671f6e16509af82fa5a316ed214d763b1a6b5c7d14fb9ba3f0b2a47
Copyright registration time
2026-06-21T19:51:14+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:00fdd7b390a4e27b125e3679630a8c94e2d780dfb88b84dff6107c0441ad051c

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.