Piano Concerto No. 24 in C Minor, K. 491: II. Larghetto

Recording identifiers

ISRC

NLE420700402

Release date of the album this recording appears on

2007-09-01

CopyrightID (CopyrightChains transaction hash)

0xa49a5f77f4e5ff4e98bcac0fe08441c2cb3708e40f34b5b2dd619effe505b17f

Copyright registration time

2026-07-07T22:42:53+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-08T03:22:41Z

Bitcoin block

957120

Canonical record hash

sha256:eb71ed1f51b7206e046ffbcb5dd5ba17ba7476fe36e34b26d7f4f29adef7ccdf

• Verify the CopyrightID on CopyrightChains
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• Recording evidence summary for ISRC NLE420700402

What this proof establishes

This recording was released in 2007, 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.