Three Madrigals: III. Sigh no more, ladies, sigh no more!

Recording identifiers

ISRC

USLZJ1782009

Release date of the album this recording appears on

2017-06-20

CopyrightID (CopyrightChains transaction hash)

0x55d2c29276fd7313e4975dbd43e0af364f0efef5ee2a2987cc998cc9c19212e5

Copyright registration time

2026-07-29T17:59:40+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-29T19:35:34Z

Bitcoin block

960138

Canonical record hash

sha256:de8464ff162754dec005f7947e9f5c4db218e18dcafb258951bfee0572b2eaf8

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC USLZJ1782009

What this proof establishes

This recording was released in 2017, 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.