Piano Concerto No. 21 in C major, K. 467, "Elvira Madigan": Andante

Recording identifiers

ISRC

DEE477300003

Release date of the album this recording appears on

1991-06-11

CopyrightID (CopyrightChains transaction hash)

0xa78ad2cc1a21b89b0240af814dcea9c1f7cbddf99e8a66a4ca4f0331657894c3

Copyright registration time

2026-07-07T02:58:56+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-08T03:20:19Z

Bitcoin block

957118

Canonical record hash

sha256:a503d74fcdeb72ab926a5c70a613e1d5677d24c4fa2ace39caeda056495a7f52

• Verify the CopyrightID on CopyrightChains
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• Recording evidence summary for ISRC DEE477300003

What this proof establishes

This recording was released in 1991, 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.