County Building Blues

Recording by Kendrick Lamar.

Recording identifiers

ISRC
USUM71211186
CopyrightID (CopyrightChains transaction hash)
0x479bc54a1574ebb9b2eb465b1ecab59f4bc4a7c5030eef7178fc7d076a4c90b8
Copyright registration time
2026-06-04T09:23:54+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:47:07Z
Bitcoin block
953513
Canonical record hash
sha256:db34a49ff81b36254bad0c2b68303fc62e8bf3d62805cfb69b3a5f81d64e17f1

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.