How Long

Recording by K-Ci & JoJo.

Recording identifiers

ISRC
USMC10201340
CopyrightID (CopyrightChains transaction hash)
0xb327b1ab572ebcf601e46e44e770ed31acb2eeca9e046a790270178034090757
Copyright registration time
2026-06-28T04:22:25+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T16:51:38Z
Bitcoin block
956375
Canonical record hash
sha256:a364f5f798727cb149db890c7f4bd0a9424f21fb2b437f28434ad8c6255b2577

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.