Trio Sonata in C Minor, HWV 386a: I. Largo

Recording identifiers

ISRC

HKI199323217

Release date of the album this recording appears on

1992-08-07

CopyrightID (CopyrightChains transaction hash)

0x21e3d52890f1285f6d0ae0a3e78a08e882ad70bd6a3e656347c677b31c4a8fc2

Copyright registration time

2026-07-07T20:41:14+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-08T03:22:41Z

Bitcoin block

957120

Canonical record hash

sha256:6fa0698de833f6690b7d80f36dcfe599ca6281e7eb30fd638d704700f5f09857

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC HKI199323217

What this proof establishes

This recording was released in 1992, 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.