Cassation in G for Orchestra and Toys: 1. Marche

Recording by Leopold Mozart.

Recording identifiers

ISRC
GBF078430504
Release date of the album this recording appears on
2001-05-31
CopyrightID (CopyrightChains transaction hash)
0x133d87518a9217225a33fd489ab32a24ea635ce48c226cb5c247ffeadfa557f1
Copyright registration time
2026-07-07T12:20:59+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:4020510f30d12ddd3b19b60fa469822b477fa4d95a03e85e6bae5037e4c7ed23

What this proof establishes

This recording was released in 2001, 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.