Preludes, Op. 28: No. 13, Lento in F-Sharp Major

Recording by Frédéric Chopin.

Recording identifiers

ISRC
GBAYC9101693
Release date of the album this recording appears on
2021-11-27
CopyrightID (CopyrightChains transaction hash)
0x2eec3059ecac5fdffdcd68cbade9c5c27bd882f86d3b097a36e018e9c56498dd

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T08:26:41Z
Bitcoin block
960368
Canonical record hash
sha256:24a564f4c57547459a9535097f8961f032b855e53ae940c9dab2ec24c23be9ec

What this proof establishes

This recording was released in 2021, 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.