Piano Sonata No. 11 in A Major, K. 331: I. Theme and Variations: Andante grazioso

Recording identifiers

ISRC

DES380014846

Release date of the album this recording appears on

2017-02-01

CopyrightID (CopyrightChains transaction hash)

0x1b519879791f36b04680452b615323c4d8355a1fbc91561528ad0d42c392ff1a

Copyright registration time

2026-07-07T11:38:03+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-08T03:20:19Z

Bitcoin block

957118

Canonical record hash

sha256:dd27a25d0e629a70c6059f7ec6c7b6e0680db12c8f434daeaa6e37bbca55fce1

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• Recording evidence summary for ISRC DES380014846

What this proof establishes

This recording was released in 2017, 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.