Who Killed It?

Recording by Nas.

Recording identifiers

ISRC
USUM70620795
CopyrightID (CopyrightChains transaction hash)
0x15254f5eff51a5d86260308c51165e4a001a4b5164462e410292523ec54a80ea
Copyright registration time
2026-06-08T20:34:37+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T13:32:09Z
Bitcoin block
953520
Canonical record hash
sha256:5d60d74a0cc70620242518b7326318e30e19b0daeb4d4d77ab0db067bf7759a0

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.