Klavierstück IV

Recording by Karlheinz Stockhausen.

Recording identifiers

ISRC
SE5DH2300305
CopyrightID (CopyrightChains transaction hash)
0x4c401a4156e30805feae558b50ee154cc2d14c5f7b24d16cfb05f056f863444b
Copyright registration time
2026-07-07T08:32:05+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:797b2b041d7bb8a2dc5a5202326f19cefb986e9e2e0eba28b9c6fe4a33f48e40

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.