3 Nouvelles Etudes, B 130: II. Allegretto

Recording by Frédéric Chopin.

Recording identifiers

ISRC
FRZ140717270
Release date of the album this recording appears on
2008-02-08
CopyrightID (CopyrightChains transaction hash)
0x53595e023ee0babd6de179866a2e4dddff56f78d4357348f30a0797d381f368b
Copyright registration time
2026-06-25T17:26:40+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:acd9bc133b7fe5fac50ebb454ab7e03b74e7c45f8e94eea6ea58734dc457b511

What this proof establishes

This recording was released in 2008, 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.