Koko

Recording by Sander van Doorn.

Recording identifiers

ISRC
NLC281111609
CopyrightID (CopyrightChains transaction hash)
0xe9f3159f52085008d23f47bfca6a933a60e08197e8c28dae05bfee82723cdff3
Copyright registration time
2026-07-03T16:29:24+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-22T05:28:08Z
Bitcoin block
957124
Canonical record hash
sha256:d79ed30e00ca7ad58cf50100cdbe7463a53c26e997d2d1eafef4892d045c3d6b

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.