Etudes-tableaux, Op. 39: No. 4 in B Minor. Allegro assai

Recording identifiers

ISRC

DEN961101730

Release date of the album this recording appears on

2012-03-01

CopyrightID (CopyrightChains transaction hash)

0x9735f7ddc8c1cb3f0466b25b86e12438f48e67aa4ce1620bf688b15f31af463c

Copyright registration time

2026-06-20T22:46:05+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-02T03:30:09Z

Bitcoin block

956302

Canonical record hash

sha256:a2cbebe6ad5e37e13c9818682d6c4f525f30a5153fb9047a5d16f52d0c27961c

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC DEN961101730

What this proof establishes

This recording was released in 2012, 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.