24 Préludes, Op. 28, C. 166-189: 21 in B Flat Major

Recording by Frédéric Chopin.

Recording identifiers

ISRC
GBF077441621
Release date of the album this recording appears on
2025-01-20
CopyrightID (CopyrightChains transaction hash)
0x131ea1387e340240d5f56a649577eb3bb87122b428f92c3058279c01665bf1ad
Copyright registration time
2026-07-07T18:13:02+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:22:41Z
Bitcoin block
957120
Canonical record hash
sha256:6b6edcce6717be05346291c07f203808999641bd5c1be416f02aaf2d0ba73d2e

What this proof establishes

This recording was released in 2025. 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.