Organ Sonata No. 2 in C Minor, BWV 526: II. Largo

Recording identifiers

ISRC

FRZ207910402

Release date of the album this recording appears on

2021-01-23

CopyrightID (CopyrightChains transaction hash)

0x9e7e31e3d263da350d1e21667876e928ab6ec58df92d7d1ac89716829a05d92a

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-30T05:15:54Z

Bitcoin block

960209

Canonical record hash

sha256:6c239b383db03e31d5691c054ed4c860b761fefe1166be675dda8bc849aebb57

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC FRZ207910402

What this proof establishes

This recording was released in 2021, before generative AI. ProofProfile's catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and 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.