Variations on a Theme of Chopin: Variation 6. Meno mosso

Recording identifiers

ISRC

GBBBA1140007

CopyrightID (CopyrightChains transaction hash)

0x92aa0594d7b886e598337b7a20abe46fe36e3f5b0903a4786ce1bc1d1b0a3c24

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-29T19:35:34Z

Bitcoin block

960138

Canonical record hash

sha256:54c4043b7aaa782bb47d672eb74ee72b542885fc36352f21e54f238ad1b463a2

• 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.