Kaleidoscope. Op. 40, No.4 - Duo-Art 6845

Recording by Josef Hofmann.

Recording identifiers

ISRC
DEPI82454122
CopyrightID (CopyrightChains transaction hash)
0x510ffa0513b898d9157adeb782cf7f102cac6c823d94f554fbed21bc8c7a3d39
Copyright registration time
2026-07-03T23:06:43+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:aea271de345974f5150c2093b125f2e72d106449df28ebf6c66482da213d27fa

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.