Shakespeare Songs, Op. 80: IV. Sigh no More, Ladies

Recording by William Mathias.

Recording identifiers

ISRC
FRW950302823
Release date of the album this recording appears on
2003-01-01
CopyrightID (CopyrightChains transaction hash)
0x60cb9ace951b59fccabbed6d4b06c677313091d786d84b4c3c3897806571e12d
Copyright registration time
2026-07-07T01:25:24+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:aa9eb2a45c7e9fb36c3310c7db0c07e82293e7e3cf8355654d92b321de3a0c28

What this proof establishes

This recording was released in 2003, 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.