Sonata in G K79

Recording identifiers

ISRC

FRZ118703084

CopyrightID (CopyrightChains transaction hash)

0x31878b1cf4c48a21aabc65a1a3293cc0d24a0b2cd14059e2ea9a3e76d386667d

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-08-01T03:13:03Z

Bitcoin block

960500

Canonical record hash

sha256:80d4e8043e4e319b3544b1489ce2fc8f7233bab402affdcb7fc76812f9790e92

• 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.