The Art of Fugue, BWV 1080: Contrapunctus 3

Recording identifiers

ISRC

NLA507400085

Release date of the album this recording appears on

1994-01-01

CopyrightID (CopyrightChains transaction hash)

0x8e46bc1bbde9a76f0eff4983286b8e49237a43a63f8690c451c0f8103e46cc97

Copyright registration time

2026-07-06T09:21:10+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-07T14:18:56Z

Bitcoin block

957048

Canonical record hash

sha256:7c66f47840e42d8f94e90929251b2bb62c07dd1ccf49ccfb8198b3fd5c2b5708

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC NLA507400085

What this proof establishes

This recording was released in 1994, 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.