Sonata No. 6, Op. 82: II. Allegretto

Recording by Sergei Prokofiev.

Recording identifiers

ISRC
GBLWD9806605
CopyrightID (CopyrightChains transaction hash)
0x2cb6317118b9e74ecb69605c6e93802ff8acbfeffa44356c85f15768de867b90
Copyright registration time
2026-07-30T16:22:36+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-30T17:23:26Z
Bitcoin block
960284
Canonical record hash
sha256:3958e2851818c24f9206522a8ba9d821a1d93bf0db4a83f6b695a96e88a2bd41

What this proof establishes

This recording belongs to ProofProfile's historical evidence base derived from the pre-2022 AcousticBrainz and MusicBrainz corpus. 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.