Piano Concerto No. 1, Op. 28: IV. Toccata concertata

Recording identifiers

ISRC

HKI190045404

Release date of the album this recording appears on

2001-04-13

CopyrightID (CopyrightChains transaction hash)

0x92a020aec9f444be0cce772c6521470bdfdea940738a9ac1cd87dd6c49b16c84

Copyright registration time

2026-07-29T18:22:40+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-29T19:35:34Z

Bitcoin block

960138

Canonical record hash

sha256:97aceaf2559334135c42addc212204122f69ae3d0b0826025711c7bacff2009d

• Verify the CopyrightID on CopyrightChains
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• Recording evidence summary for ISRC HKI190045404

What this proof establishes

This recording was released in 2001, 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.