Piano Sonata No. 2 in B-Flat Minor, Op. 35: III. Marche funèbre

Recording identifiers

ISRC

FRZ119506370

Release date of the album this recording appears on

2025-03-01

CopyrightID (CopyrightChains transaction hash)

0xa8f586dc37252859d33cb80ba2d2a1125e8f7bee4ce41e92660f3d2465596f53

Copyright registration time

2026-06-21T17:39:01+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-08T03:20:19Z

Bitcoin block

957118

Canonical record hash

sha256:083066f84a2b0e922a5f44623545d885265a5c802ba05982c07c443abbb292f1

• Verify the CopyrightID on CopyrightChains
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• Recording evidence summary for ISRC FRZ119506370

What this proof establishes

This recording was released in 2025. ProofProfile's artist catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and this recording entered the record through cc-db-prod's ISRC-linked registration. Its provenance rests on the dates stated above rather than on the era of that source corpus.

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.