Due pupille amabili, K. 439: Due pupille amabile, K. 439

Recording identifiers

ISRC

CACA30880790

Release date of the album this recording appears on

2000-01-01

CopyrightID (CopyrightChains transaction hash)

0xf365335c84cb52763c5802c73c7ea3fa84490e260ee06eced0552cc7c4c37ccf

Copyright registration time

2026-07-31T20:07:35+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T20:22:46Z

Bitcoin block

960459

Canonical record hash

sha256:ea9efd353ade30b974f4f391f20bfcf494e4c801e849f376a2f8cb351956d733

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC CACA30880790

What this proof establishes

This recording was released in 2000, 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.