Lalo: Le Roi d'Ys, Act 1: "Margared, ô ma soeur" (Margared, Rozenn)

Recording identifiers

ISRC

FRZ111800085

Release date of the album this recording appears on

1957-09-08

CopyrightID (CopyrightChains transaction hash)

0xeb04d4fcb72b11446b6cf22d19e65c67fa1807d2187c717b8e2c3d4100741519

Copyright registration time

2026-07-31T14:19:45+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T15:20:15Z

Bitcoin block

960418

Canonical record hash

sha256:0c474eab9f3b0fd256a4dc330e5ab2816cab3332986bdf9f340a87ba6ae1778c

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC FRZ111800085

What this proof establishes

This recording was released in 1957, 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.