Piano Concerto No. 21 in C Major, K. 467: II. Andante

Recording by Wolfgang Amadeus Mozart.

Recording identifiers

ISRC
SEWDL0553204
Release date of the album this recording appears on
2020-03-14
CopyrightID (CopyrightChains transaction hash)
0xcf6f03df8320d22c3deefaaac85fe05fc720dd69392e85a86fd3d4606a582390
Copyright registration time
2026-07-29T16:42:10+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-29T21:09:47Z
Bitcoin block
960144
Canonical record hash
sha256:1e71c059e8db26b09569fc99cf0cb66fd8ee5fb7e4b8ca78a16fe2b1af84abf0

What this proof establishes

This recording was released in 2020, 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.