Piano Sonata No. 30 in E Major, Op. 109: IIIc. Var. 2. Leggiermente

Recording identifiers

ISRC

DEN961903565

Release date of the album this recording appears on

2020-02-21

CopyrightID (CopyrightChains transaction hash)

0x83e11433a954776a51789e07b1b3ed1a7a458e9c9aa0927c835567c893120a0a

Copyright registration time

2026-07-06T18:20:31+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-07T16:43:08Z

Bitcoin block

957064

Canonical record hash

sha256:45fa3cbeceb365163046a4d68ba29355c877c611d4eb7bfbdb3687b511d1b696

• Verify the CopyrightID on CopyrightChains
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• Recording evidence summary for ISRC DEN961903565

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.