Unbelievable

Recording by The Notorious B.I.G..

Recording identifiers

ISRC
USBB40580820
CopyrightID (CopyrightChains transaction hash)
0x52b0b6dc174670b9b12a56a5b98078bae5f97b56168a70358855aacc2c3cb0de
Copyright registration time
2026-06-04T03:45:14+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T16:51:38Z
Bitcoin block
956375
Canonical record hash
sha256:cf92460400da913913fe0e5b6d34af0ab98d4c72506851eee7b5cc57dd99373a

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.