Piano Sonata No. 8 in B-Flat Major, Op. 84: II. Andante sognando

Recording by Sergei Prokofiev.

Recording identifiers

ISRC
GBAYC0502334
Release date of the album this recording appears on
2019-01-04
CopyrightID (CopyrightChains transaction hash)
0x50218348a329e07cf0306d029409979dafc6389778d563011b2fb5dfc42cb444
Copyright registration time
2026-07-07T02:26:31+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:3463cbd62d9b5c870184c8bf650506ecdad441f78a00fab5ff4e67e2a9f1da87

What this proof establishes

This recording was released in 2019, 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.