Les guitares bien temperees (The Well-Tempered Guitars): Preludes and Fugues, Op. 199: Prelude No. 20 in G-Sharp Minor

Recording identifiers

ISRC

HKI190917415

Release date of the album this recording appears on

2009-06-30

CopyrightID (CopyrightChains transaction hash)

0x8b772eeb839bf4644e92ab007a4452daa61d42da9f62521ed1cc5a2ef13daf09

Copyright registration time

2026-07-31T15:18:43+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T15:27:29Z

Bitcoin block

960422

Canonical record hash

sha256:bb8dd1d5d1425a4a9827a14f4874082332a83d32289656cdb4561b75bb0862e9

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC HKI190917415

What this proof establishes

This recording was released in 2009, 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.