Yesterday

Recording by Chief Keef.

Recording identifiers

ISRC
TCABR1331925
CopyrightID (CopyrightChains transaction hash)
0x45c7536843a7d4b978dc804c98007f46b092f5a6391dbaf94773dd967e5e4d7e
Copyright registration time
2026-06-05T06:29:35+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:47:07Z
Bitcoin block
953513
Canonical record hash
sha256:7ddfb920ccc520f1bb3e2b819f93271f598c1b0c27fdd564363c5840cb676b18

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.