Poetic Justice

Recording by Kendrick Lamar.

Recording identifiers

ISRC
USUM71211004
CopyrightID (CopyrightChains transaction hash)
0xc09c2447f5d4524e9769a80ce895e519936bc4967c37831b3b04182c4c7fc887
Copyright registration time
2026-06-01T07:31:32+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:47:07Z
Bitcoin block
953513
Canonical record hash
sha256:74282cf212f38e04df3fa88e2063a032f51b37a8168dfe2086190c57f8fe9590

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.