Piano Concerto No. 4 Op. 40: Largo

Recording identifiers

ISRC

NLB159600456

Release date of the album this recording appears on

2007-09-13

CopyrightID (CopyrightChains transaction hash)

0x61a89bdf4893405e23e2fffcad26cc2eae906b34caa7feea91adac2089844a0c

Copyright registration time

2026-07-30T13:05:45+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-30T14:36:16Z

Bitcoin block

960264

Canonical record hash

sha256:54f7c4421f853326a69151b71d410a0bc7d340f390b016850a65dfea2d430911

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
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• Recording evidence summary for ISRC NLB159600456

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.