Sonata II en Sol Bemol: Mayor: Vivace

Recording by Willem de Fesch.

Recording identifiers

ISRC
MX2831301992
CopyrightID (CopyrightChains transaction hash)
0xc29b70ae22bb811bddd6439b96ada51a6c934fc09c92e2f165e19cc3ac48dbfa
Copyright registration time
2026-07-07T19:55:06+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:22:41Z
Bitcoin block
957120
Canonical record hash
sha256:fd3e01a5d68492fbb25e71b7f3e5c67ce42005cb41f3fd4db4ed6460deaf00da

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.