Prelude, Choral & Fugue, CFF 24: III. Fugue. Tempo I

Recording identifiers

ISRC

GBF078810473

Release date of the album this recording appears on

1989-04-13

CopyrightID (CopyrightChains transaction hash)

0x423e10f52ebbb72d487c7b0b531fb919ea67f28ecebc7b8f6eb9b807117d9089

Copyright registration time

2026-07-31T07:12:16+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T08:26:41Z

Bitcoin block

960368

Canonical record hash

sha256:52a4e76d19e0efd9e14d5c8589f2f57d4366e4f6ef0bd25428b361f676765bf1

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC GBF078810473

What this proof establishes

This recording was released in 1989, 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.