Piano Concerto No. 3 in C Minor, Op. 37: II. Largo

Recording identifiers

ISRC

CZH401107776

Release date of the album this recording appears on

2021-09-17

CopyrightID (CopyrightChains transaction hash)

0xc30717a654dcbfe15c6ae7ef9d13edd68acb877f1fd67b3da7811dc28d9d66b0

Copyright registration time

2026-07-31T11:03:01+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T12:24:41Z

Bitcoin block

960397

Canonical record hash

sha256:e270ad6e7ec65f17fbddf53cf98f2687c30c1c180bb80630145d225c2d09476f

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• Recording evidence summary for ISRC CZH401107776

What this proof establishes

This recording was released in 2021, 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.