Marie, témoin d'une espérance

Recording by Laurent Grzybowski.

Recording identifiers

ISRC
FRZ099800131
Release date of the album this recording appears on
2016-04-08
CopyrightID (CopyrightChains transaction hash)
0x8ffe9e3bfcd23bba8c9748bcda053868539f7fbe78add9a77166449f11248e20

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-30T00:11:40Z
Bitcoin block
960173
Canonical record hash
sha256:4fdde916c1a4454785b928e12c8695e65cfc232a0a9d2de714d715ac77fb6557

What this proof establishes

This recording was released in 2016, 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.