12 Études, Op. 25: No. 12 in C Minor "Ocean"

Recording identifiers

ISRC

DEF057230111

Release date of the album this recording appears on

2009-01-01

CopyrightID (CopyrightChains transaction hash)

0xc6efeb342d01c1fff11ce90c13b8ee23670871638489ac96736b73c230b0f36b

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-29T21:09:47Z

Bitcoin block

960144

Canonical record hash

sha256:39feac00434e6cd31e042e636715fb9125791a5b073cf864d65211b4e95bdff2

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC DEF057230111

What this proof establishes

This recording was released in 2009, 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.