Prelude And Fugue In F Minor (WTK, Book II, No. 12), BWV 881: Prelude

Recording identifiers

ISRC

NLA508500471

Release date of the album this recording appears on

2009-01-01

CopyrightID (CopyrightChains transaction hash)

0x8050c40c517df7084b6171db83bafceb6604fe41290cd8da65e7bec1daf7b2af

Copyright registration time

2026-06-24T15:06:29+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-07T09:18:01Z

Bitcoin block

957020

Canonical record hash

sha256:92133e9d752fecba491c4c0aa3052eedfa8584768517ebfd90b179692aef167c

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC NLA508500471

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.