Sonata in A K39

Recording identifiers

ISRC

FRZ118703080

CopyrightID (CopyrightChains transaction hash)

0x517f4594e096e122ecb8bb747891794384e587f8c0be676a9a5cc1141e6b1cbe

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-08-01T01:44:32Z

Bitcoin block

960494

Canonical record hash

sha256:f0b307b69deb3374d10d9c7fe8cd8e3babc108e577d948bbe05c7733d091619c

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result

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.