(Used To Be A) Cha Cha

Recording by Jaco Pastorius.

Recording identifiers

ISRC
USHU20407810
CopyrightID (CopyrightChains transaction hash)
0xabcca16980a07533c0aa93f506c3216426fa00623761dabd95967c3cf792c04e
Copyright registration time
2026-06-21T01:00:55+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:3fd843132856753ab32eb5d7e0aeef474712b7f69c1f74bd84031699228f0c6a

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.