The Well-Tempered Clavier, Book II: Prelude and Fugue No. 1 in C Major, BWV 870: I. Prelude

Recording identifiers

ISRC

FR50X2303401

Release date of the album this recording appears on

2025-04-04

CopyrightID (CopyrightChains transaction hash)

0xcb050c73d03d0879be97cb6166c2a6d99ddf89d3bacd7b51b380c4f61255c92f

Copyright registration time

2026-07-31T00:57:19+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T02:19:15Z

Bitcoin block

960334

Canonical record hash

sha256:90eed4b07a15e05cb65a36b3b16973721f71aa34f9fbfa5bc067f233f266632e

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
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• Recording evidence summary for ISRC FR50X2303401

What this proof establishes

This recording was released in 2025. ProofProfile's artist catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and this recording entered the record through cc-db-prod's ISRC-linked registration. Its provenance rests on the dates stated above rather than on the era of that source corpus.

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.