Piano Concerto No. 2 in C Minor, Op. 18: I. Moderato

Recording identifiers

ISRC

NLE421100101

Release date of the album this recording appears on

2020-04-24

CopyrightID (CopyrightChains transaction hash)

0x34745ace6797f7def8a926c091196168bc3a55029176ead5cc87e738583def27

Copyright registration time

2026-07-07T16:39:27+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-08T03:20:19Z

Bitcoin block

957118

Canonical record hash

sha256:2f64e305e7267f15bdff18812c4f9692222252a648a82a6c5983cdfdf899931f

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• Recording evidence summary for ISRC NLE421100101

What this proof establishes

This recording was released in 2020, 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.