12 Études, Op. 25: No. 11 in A Minor "Winter Wind"

Recording identifiers

ISRC

DEF057230110

Release date of the album this recording appears on

2007-01-01

CopyrightID (CopyrightChains transaction hash)

0x57a900455ca2e0f01110c47deaff808ae52f7215439df6e09307fc58e76fdc95

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-08-01T00:10:46Z

Bitcoin block

960485

Canonical record hash

sha256:549449bceca1d416ded27ea6336b316ff17a02b5b47e06589eeffda423733d13

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC DEF057230110

What this proof establishes

This recording was released in 2007, 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.