9 Variations on a Minuet by Duport, K. 573: Var. 8

Recording by Wolfgang Amadeus Mozart.

Recording identifiers

ISRC
DEF056332209
CopyrightID (CopyrightChains transaction hash)
0xd6aeaf83daa2a30d8f5eeb7960c8363fcfd210c568e609a4bc345bd7f969a2e3
Copyright registration time
2026-06-19T04:37:43+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:0e5848a9d79afa07507063ae6d2ac211783c4960ea49b8ffb71f9e7894f3da8f

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.