Variations on "La ci darem la mano", Op. 2: Var. 4. Con bravura

Recording by Frédéric Chopin.

Recording identifiers

ISRC
DEN961700506
Release date of the album this recording appears on
2017-10-06
CopyrightID (CopyrightChains transaction hash)
0x97471ba148c8c284b4782867d147ba1900146279b292eecc51b9070e036a76e3
Copyright registration time
2026-06-25T17:24:53+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:bb8f1d5050c1fdaaeb13c08cba3ae2bd9c5a05cd0cec9e9d0abce0434a09929a

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.