Model 33

Recording by Karlheinz Stockhausen.

Recording identifiers

ISRC
UKA682100032
CopyrightID (CopyrightChains transaction hash)
0x75fc263681af03b582a734cfdc26a1a412fee2b30d265509424563864e9b2500
Copyright registration time
2026-07-30T22:51:27+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T00:26:26Z
Bitcoin block
960327
Canonical record hash
sha256:139c5b4ddf4502de2010c02f01d1c9c807e5307bdf2b5f0a43ddb21a5677d743

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.