12 Études dans tous les tons majeurs, Op. 35: XI. Etude No. 11 in B Major

Recording identifiers

ISRC

NLY331703834

Release date of the album this recording appears on

2017-10-27

CopyrightID (CopyrightChains transaction hash)

0x2314d980c8761c5ebed4c824d04e480a3d8c9ec0ff1f9ed9f22008b8bced6fe8

Copyright registration time

2026-07-31T11:01:24+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T12:24:41Z

Bitcoin block

960397

Canonical record hash

sha256:adb08cb741a532cba0c2c1be33fa3e44d199f10a736b8c86da65c6832186b3de

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
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• Recording evidence summary for ISRC NLY331703834

What this proof establishes

This recording was released in 2017, 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.