Sonata No. 4, Op. 29: II. Andante assai

Recording by Sergei Prokofiev.

Recording identifiers

ISRC
GBLWD9806508
CopyrightID (CopyrightChains transaction hash)
0x6ce4c7ea4b554df323dc05d5856e7ff87d79016fc5213c643f2f5dfe40cbe848
Copyright registration time
2026-07-30T11:28:19+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-30T12:06:10Z
Bitcoin block
960254
Canonical record hash
sha256:77914f59a208d284223ee3241ca0145d058ff08c3f5d4181fc53c4516dfaabd2

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.