Piano Concerto No. 24 in C minor, K.491: 2. Larghetto

Recording identifiers

ISRC

GBF078811552

Release date of the album this recording appears on

1990-08-27

CopyrightID (CopyrightChains transaction hash)

0xd6a2a3861268437d380d7aab6280d26400fb5e2f4dce22aad1d7821b71205d83

Copyright registration time

2026-07-31T06:58:22+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T08:38:45Z

Bitcoin block

960370

Canonical record hash

sha256:f3e500f823436d510fc7cdc6f2e8ae30143835741defd01971c5889df6c09991

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
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• Recording evidence summary for ISRC GBF078811552

What this proof establishes

This recording was released in 1990, 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.