Piano Concerto No. 21 in C Major, K. 467: II. Andante

Recording identifiers

ISRC

DEF058603392

Release date of the album this recording appears on

1999-01-01

CopyrightID (CopyrightChains transaction hash)

0xa9a8411987e127f4096cbf4d765d0143b39d0dd5e2c80c3e158a97e71a81eccd

Copyright registration time

2026-07-06T19:20:48+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-08T03:20:19Z

Bitcoin block

957118

Canonical record hash

sha256:4f900a94accd13fbda6a0df4070de43df9a93fa266a3921720dec66d8b84de5d

• Verify the CopyrightID on CopyrightChains
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• Recording evidence summary for ISRC DEF058603392

What this proof establishes

This recording was released in 1999, 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.