Horn Concerto No. 3 in E Flat Major, K. 447: I. Allegro - Cadenza: William Purvis

Recording identifiers

ISRC

DEF058703151

Release date of the album this recording appears on

1988-01-01

CopyrightID (CopyrightChains transaction hash)

0x1e7e1b728b9850ca16572c11b5607cc9e74ef7ffae0af5c4077cb04dd4d49c55

Copyright registration time

2026-06-22T20:13:26+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-02T03:55:08Z

Bitcoin block

956304

Canonical record hash

sha256:b2cd39813b8cb2d438055f1fd10f3656e8526c978ff4a89ed808a2b7a4b28db0

• Verify the CopyrightID on CopyrightChains
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• Recording evidence summary for ISRC DEF058703151

What this proof establishes

This recording was released in 1988, 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.