Piano Sonata No. 21 in B Flat Major, D. 960: I. Molto moderato

Recording identifiers

ISRC

DEF058702211

Release date of the album this recording appears on

2013-01-01

CopyrightID (CopyrightChains transaction hash)

0x4f11a1074daf7ec2ee0333d2cb1947e6348b95c3c91e4c9d9f314c981202a139

Copyright registration time

2026-07-30T21:14:00+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-30T21:35:24Z

Bitcoin block

960317

Canonical record hash

sha256:6aa02470f92a35ee724217d25dbafcc49eda1c5d936f9bba92ce8a0f74055c79

• Verify the CopyrightID on CopyrightChains
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• Recording evidence summary for ISRC DEF058702211

What this proof establishes

This recording was released in 2013, 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.