Introduction and Variations on a German National Air Op. posth. (KK 925-927) - Pt. 3

Recording by Frédéric Chopin.

Recording identifiers

ISRC
DEF056502063
Release date of the album this recording appears on
2024-12-08
CopyrightID (CopyrightChains transaction hash)
0xce102f561d4a7ba48184abc5bbac9e8599eb05981abbe941f0fe16e09d7a8d2f
Copyright registration time
2026-07-05T08:06:31+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:dc8660bdddcc5ea225b6a2d6c7be380d1549f3b93658a0c9985c873b1c658bca

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.