Piano Sonata No. 2 in B-Flat Minor, Op. 35 "Funeral March": I. Grave - Doppio movimento

Recording identifiers

ISRC

USSM11203187

Release date of the album this recording appears on

2012-09-14

CopyrightID (CopyrightChains transaction hash)

0x468cab13b0f1748050f61873c880b1f5ed9a93a001aff15c5e4a07efa173c34f

Copyright registration time

2026-06-11T12:24:25+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-06-13T15:41:10Z

Bitcoin block

953528

Canonical record hash

sha256:9efcb7ebe72f6af44b0615f42524c52efcb6444251b6ba7eca400327b689a139

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC USSM11203187

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.