Bach, JS: Well-Tempered Clavier, Book 2, Prelude and Fugue No. 17 in A-Flat Major, BWV 886: I. Prelude

Recording identifiers

ISRC

GBAYC2003000

Release date of the album this recording appears on

2020-11-27

CopyrightID (CopyrightChains transaction hash)

0x8f9dc4062b315e11279ba6e41404b3c579519bbd40aeb3789fa32e4922eb85ea

Copyright registration time

2026-06-10T19:04:21+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-06-13T13:32:09Z

Bitcoin block

953520

Canonical record hash

sha256:bf6e548275736b20017b3a8aaa2a38d102be36126f1f6951b4d629e7c49f83e5

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Download the anchored registration record (its SHA-256 is the canonical record hash above)
• Recording evidence summary for ISRC GBAYC2003000

What this proof establishes

This recording was released in 2020, 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.