Sonata for Piano and Violin in B Flat Major, K.454: 3. Allegretto

Recording identifiers

ISRC

TWUM71600083

Release date of the album this recording appears on

2017-01-13

CopyrightID (CopyrightChains transaction hash)

0x4a8a667c33465737de926716503e4868bceb29437e57b418e4d381e24b5e87ad

Copyright registration time

2026-07-30T06:36:23+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-30T06:57:05Z

Bitcoin block

960218

Canonical record hash

sha256:f26ab0cbb2e0477625e724f87f4b6c89bc22b86ef039d17169cb82c58cbb751c

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
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• Recording evidence summary for ISRC TWUM71600083

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.