Do You Know? - Radio Version

Recording by 2 Brothers On The 4th Floor.

Recording identifiers

ISRC
NLA249800070
CopyrightID (CopyrightChains transaction hash)
0xcfff308e6307dd527418299b06614feef8a74865d2b28e4f0e184a82bcebba0e
Copyright registration time
2026-06-21T08:17:51+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:429ad6f563fe93e9494aab6027e6f09add7909f65447f3d0230a047c0c34099d

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.