Organ Symphony No. 4 in F Minor, Op. 13 No. 4: I. Toccata

Recording by Charles-Marie Widor.

Recording identifiers

ISRC
GBLWD0709509
Release date of the album this recording appears on
2007-01-01
CopyrightID (CopyrightChains transaction hash)
0x610d1b6e898c04bba2e28b960a41e063ec1fc6e903a080045bf5fdc113ad74e3
Copyright registration time
2026-07-06T23:07:02+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:91aad3c3a607fbcf7a7d87f5ebca15b8dd55d57f396d476465455ed9e1b89561

What this proof establishes

This recording was released in 2007, 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.