Piano Concerto No. 21, K. 467: II. Andante

Recording by Wolfgang Amadeus Mozart.

Recording identifiers

ISRC
USSJ10904008
Release date of the album this recording appears on
2009-01-01
CopyrightID (CopyrightChains transaction hash)
0x1423dd86e8b47915f902967d6b27d56aa9e9f29d50f66bc9379b53ef4ef0be40
Copyright registration time
2026-07-07T03:03:37+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:a070d296a99c53c31fb9831e33b702fd28edcd3072591081287dcc4ba2ec4fb9

What this proof establishes

This recording was released in 2009, 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.