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.