Hohe Schule des Violoncello-Spiels (High School of Cello Playing), Op. 73: Etude No. 3 in B-Flat Minor

Recording identifiers

ISRC

HKI190834203

Release date of the album this recording appears on

2009-01-27

CopyrightID (CopyrightChains transaction hash)

0x6abecb207d6aae82d6d5f798bfe30cb5539514f162683c5aefd63a6d4ba81e2f

Copyright registration time

2026-06-26T02:44:25+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-02T03:55:08Z

Bitcoin block

956304

Canonical record hash

sha256:ed66faa5a48e0c1499f3f1d6d448a7b02ccf76afe3e0f726d9b846a01409133a

• Verify the CopyrightID on CopyrightChains
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• Recording evidence summary for ISRC HKI190834203

What this proof establishes

This recording was released in 2009, 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.