Marie, témoin d'une espérance

Recording by Laurent Grzybowski.

Recording identifiers

ISRC
FRZ099800131
Release date of the album this recording appears on
2020-05-15
CopyrightID (CopyrightChains transaction hash)
0x8ffe9e3bfcd23bba8c9748bcda053868539f7fbe78add9a77166449f11248e20

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T12:24:41Z
Bitcoin block
960397
Canonical record hash
sha256:c1d0d61447e9dbc0bb8c95fe0d18f1ae72f5a24323948e70a25932dc1b194049

What this proof establishes

This recording was released in 2020, 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.