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

Recording identifiers

ISRC

DEN960401013

Release date of the album this recording appears on

2010-01-01

CopyrightID (CopyrightChains transaction hash)

0x1fc55c2878e7d25c2771974ab2c73c0f383297a3a873da05499c88548566303d

Copyright registration time

2026-07-29T23:50:51+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-30T00:11:40Z

Bitcoin block

960173

Canonical record hash

sha256:093ea6d5440d60d5923394538b796c12b429e5d6388c9ade28132caf74a238ca

• Verify the CopyrightID on CopyrightChains
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• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC DEN960401013

What this proof establishes

This recording was released in 2010, 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.