Introduction et Rondo - Live

Recording by Charles-Marie Widor.

Recording identifiers

ISRC
QMZ622001004
CopyrightID (CopyrightChains transaction hash)
0xfffc98034fbe42434c09c5613710deef7b2788e3a91653a14ee4cf203e7957d1
Copyright registration time
2026-07-07T06:24:56+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:af60a4837a16374a2dc8f717102e6f6366b2ab611f6a29c34f44966cb69f0916

What this proof establishes

This recording belongs to ProofProfile's historical evidence base derived from the pre-2022 AcousticBrainz and MusicBrainz corpus. 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.