3 Waltzes, Op. 34, "Grandes valses brillantes": Waltz No. 1 in A-Flat Major

Recording by Frédéric Chopin.

Recording identifiers

ISRC
FRZ140530160
Release date of the album this recording appears on
2007-07-31
CopyrightID (CopyrightChains transaction hash)
0x81dc991ce3484e7dcb5dc18bd927a4912b19b905625f4b85dbbec01317614c71
Copyright registration time
2026-07-06T09:15:57+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-07T16:07:00Z
Bitcoin block
957061
Canonical record hash
sha256:8139e5fce5fbc4491cb291c66b28189cc46bf108534ad4d046d2d6f09de7b4f7

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.