Model 43

Recording by Karlheinz Stockhausen.

Recording identifiers

ISRC
UKA682100042
Release date of the album this recording appears on
2021-03-26
CopyrightID (CopyrightChains transaction hash)
0xbad3ad1557a66d73dfa8fde6f12c39f8e93a13fb963472335ff128da4f2ce945
Copyright registration time
2026-07-07T17:27:44+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:89b63873e930b55cbeb6364122283537b1ceda941407a2e002a4bc070cdffe92

What this proof establishes

This recording was released in 2021, before generative AI. ProofProfile's catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and 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.