12 Etudes, L.136: 6. Pour les huit doigts

Recording identifiers

ISRC

DEF059231506

Release date of the album this recording appears on

2018-02-16

CopyrightID (CopyrightChains transaction hash)

0xd9d9e3105aa69ff8c455b023d0c768a71b768de758b6388e5d1122dc7b85e76c

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T02:19:15Z

Bitcoin block

960334

Canonical record hash

sha256:e7b3ca3ed571f9d61736c96423b75725aabf943adfb3db5995870a2cf8631d1a

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC DEF059231506

What this proof establishes

This recording was released in 2018, 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.