Piano Sonata No. 13 in B flat, K.333: 2. Andante cantabile

Recording identifiers

ISRC

ITUM71801261

Release date of the album this recording appears on

2019-02-01

CopyrightID (CopyrightChains transaction hash)

0x6115832a1ba61685a0c1a9c8677e8f0e73323f2f4a13e6f539c4a7947751139c

Copyright registration time

2026-07-31T14:53:11+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T15:20:15Z

Bitcoin block

960418

Canonical record hash

sha256:4cf1d9ecaa446b40b68684dfb4eeded1a0a983abe72e151a27d765c3507717e0

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC ITUM71801261

What this proof establishes

This recording was released in 2019, 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.