Twelve Preludes For Piano (1953): I

Recording by Galina Ustvolskaya.

Recording identifiers

ISRC
QM6N21539487
Release date of the album this recording appears on
2015-01-28
CopyrightID (CopyrightChains transaction hash)
0xf9f66ba43599ed00f85f1dab8fafc2c7563e661c9b877b0cb6da2d8d4907aaf2
Copyright registration time
2026-07-22T10:25:22+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-22T11:35:32Z
Bitcoin block
959123
Canonical record hash
sha256:d8845916b6edd91f4c1acf07a4b5ae936df6ef675527f44afadf9e5b917fc5de

What this proof establishes

This recording was released in 2015, 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.