Marimba Concerto (2015 Version): I. Avec force

Recording identifiers

ISRC

DEU921809004

CopyrightID (CopyrightChains transaction hash)

0x02f5707afb6cfbd320d6e1d82d4d6e0e0c6e7c464cba0ff128c8c4b9cf101904

Copyright registration time

2026-07-06T09:00:36+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-07T18:39:05Z

Bitcoin block

957073

Canonical record hash

sha256:c206d76ad10b7ccddcec29fbdefdd0987f0669b50cf2f2a39380249cc16e5815

• 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.