21 Days

Recording by Mike Posner.

Recording identifiers

ISRC
QZ9Y21797578
CopyrightID (CopyrightChains transaction hash)
0x059f7e1cc5cc1f98c14e5389d0558faadd9c62455fbcbba84a8e77e876506be5
Copyright registration time
2026-06-22T23:22:36+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:3269a7fbf02ad652e1ef683a5592bef6f7ccce726ec6799c68a073aee1f9f3f1

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.