Negen Tot Vijf

Recording by Sef.

Recording identifiers

ISRC
NLG661100483
CopyrightID (CopyrightChains transaction hash)
0xf58a839aec4605b32f0810b8a591ef620587dfaeacb1110b7d5def5d16297a53
Copyright registration time
2026-06-22T06:56:24+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:5634493188455d0ba2ebe2546cce8cecc4c648d8d13300e426b5075c14f4b272

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.