Clarinet Quintet in A Major, K. 581: II. Larghetto

Recording identifiers

ISRC

HKI199505702

Release date of the album this recording appears on

1996-01-31

CopyrightID (CopyrightChains transaction hash)

0xd0a564f083948b6d612d75b38d9982d759054f271443d6020620d66452b35b72

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T22:27:44Z

Bitcoin block

960473

Canonical record hash

sha256:7a960ccb5e9a13118c6f4c0816d8cc48f104ae9e58af8d37657f367a45f36c93

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC HKI199505702

What this proof establishes

This recording was released in 1996, 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.