Waltz No. 9 in A-Flat Major, Op. 69 No. 1 "Farewell" - Pt. 1

Recording by Frédéric Chopin.

Recording identifiers

ISRC
DEF059031931
Release date of the album this recording appears on
2024-12-02
CopyrightID (CopyrightChains transaction hash)
0xda6e8d96967e73daeaf754551f5b98c0092e19a797f11accaf447710e69ee167
Copyright registration time
2026-07-29T22:50:51+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-29T23:20:38Z
Bitcoin block
960163
Canonical record hash
sha256:b7ddaaa2b8f9ad8009090c5e3357e9bbffb2fe6fe90d557c6e5a93b1334b52b8

What this proof establishes

This recording was released in 2024. 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.