BACK2BACK

Recording by Kairo Keyz.

Recording identifiers

ISRC
QZFYZ1919308
CopyrightID (CopyrightChains transaction hash)
0x1e5ca86befa747bac9edec9f32d91e04e91d793ef527293239f09d96a7a9ef59
Copyright registration time
2026-06-04T12:44:07+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T15:41:10Z
Bitcoin block
953528
Canonical record hash
sha256:e3f7bd932f0927da5fb0a19bca0c792bd30bda17f2200ba31e8f0010dc125a53

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.