Marche Funèbre Wn 9 Reconstruction by Jan Ekier

Recording identifiers

ISRC

DEPI82503000

CopyrightID (CopyrightChains transaction hash)

0xce2db8fab9f0fdbfecfa2a3631a7619a2e235884dfb6faf1291bde9bc9a4f493

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-29T14:28:24Z

Bitcoin block

960117

Canonical record hash

sha256:4bfef0d22a94e8497c262306c4b97ec49f0c76f54fee5db2b5ad12a165803df1

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result

What this proof establishes

This recording belongs to ProofProfile's historical evidence base derived from the pre-2022 AcousticBrainz and MusicBrainz corpus. 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.