L'art de la fugue, BWV 1080: Contrapunctus I

Recording identifiers

ISRC

FRZ171100710

Release date of the album this recording appears on

2014-04-07

CopyrightID (CopyrightChains transaction hash)

0xa52a23bcebf897a1562a07396e0b9946ebd2ff5833812aa000de98a2c1fdb8a4

Copyright registration time

2026-07-06T10:13:06+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-07T16:54:37Z

Bitcoin block

957067

Canonical record hash

sha256:e8ab5aaa4192572fb61a8953a4b54b1c83b6571bebea4f654ce33cbadde199ce

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC FRZ171100710

What this proof establishes

This recording was released in 2014, 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.