Sonata in C Minor: I. Andante

Recording by Bernhard Joachim Hagen.

Recording identifiers

ISRC
USSM19904189
CopyrightID (CopyrightChains transaction hash)
0xce0a51b9ab0c6cefc2a099223079ba97756ec3dc8379246353fc9edb1afed38e
Copyright registration time
2026-07-29T16:32:29+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-29T21:09:47Z
Bitcoin block
960144
Canonical record hash
sha256:7d161657acb00441b911e1f44a212f64fef9c111dcb43b39eda1a685eb549c47

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.