Klavierstück XI

Recording by Karlheinz Stockhausen.

Recording identifiers

ISRC
SE5DH2300310
CopyrightID (CopyrightChains transaction hash)
0xcf935f83565c01a8702dd668debc0987cd55057ad8ed5087bae699ce1d9edf4a
Copyright registration time
2026-07-31T08:03:31+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T08:26:41Z
Bitcoin block
960368
Canonical record hash
sha256:09034b23a47c48d6ff0bcde90732370687372ddef1dfb0e85022cd757820bdf2

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.