Piano Sonata No. 2 in B-Flat Minor, Op. 36: II. Non allegro. Lento

Recording identifiers

ISRC

FRZ131213050

Release date of the album this recording appears on

2012-10-01

CopyrightID (CopyrightChains transaction hash)

0x5c3456f10aa340baddf089f9adf1c639228a920fe78ee7763d28496740c517d2

Copyright registration time

2026-06-06T16:57:51+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-06-13T12:53:06Z

Bitcoin block

953515

Canonical record hash

sha256:8d05ded7ab7d39561eb9e161aab298ccce489044da15ef6fe6a8fce92f66148d

• Verify the CopyrightID on CopyrightChains
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• Recording evidence summary for ISRC FRZ131213050

What this proof establishes

This recording was released in 2012, 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.