Mad Rapper (Interlude)

Recording by Mase.

Recording identifiers

ISRC
USBB40580526
CopyrightID (CopyrightChains transaction hash)
0xafa4eab1f7439ee0202d63e2bcb33c907061cecb87878a876f981f5626098db8
Copyright registration time
2026-07-07T14:04:04+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:42716f6c7011f05c33a480c383ab0593d8720ef28cd4af6ab78ebb6267dfd283

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.