Chopin: 12 Études, Op. 25: No. 7 in C-Sharp Minor

Recording identifiers

ISRC

FRZ209908219

Release date of the album this recording appears on

2022-05-27

CopyrightID (CopyrightChains transaction hash)

0x48a852f2db03c88c79d98e0d5e191e32ec980f602dedf9cc60aa2c1809c33667

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T15:59:18Z

Bitcoin block

960427

Canonical record hash

sha256:9cb06b5f050634e741b7d4154f8381a52ad02e1bbd7b5ae2791c4a9ee7aa94ec

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC FRZ209908219

What this proof establishes

This recording was released in 2022. ProofProfile's artist catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and this recording entered the record through cc-db-prod's ISRC-linked registration. Its provenance rests on the dates stated above rather than on the era of that source corpus.

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.