Kurzwellen, Work No. 25, System 1 (Realization by Ensemble C.L.S.I.): Introduction Shortwave Radio Quartet

Recording identifiers

ISRC

US4BP1830201

CopyrightID (CopyrightChains transaction hash)

0x8f3e162a460245a7887e90495b1be41dd6a54cf65ee0e7e2262c4cae990dd315

Copyright registration time

2026-07-31T12:19:43+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T13:04:34Z

Bitcoin block

960403

Canonical record hash

sha256:e1ed4a17ca45f8879d422f077800bc2d7a4ba56c2423ee6d1fefa212fb731f0c

• Verify the CopyrightID on CopyrightChains
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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.