Frequently Asked Questions – Codex

General

What is Codex?
Codex is an independent digital trusted third party that generates publicly verifiable proof of prior existence without ever storing submitted files.

Does Codex use artificial intelligence?
No. No artificial intelligence algorithm is involved in the generation of proof or in file processing. The process is deterministic.

Why create an account?
Creating an account allows identification of the issuer, ensures traceability of proofs and provides access to your Codex history.

How it works

What formats are accepted?
PDF, DOCX, images, spreadsheets and video files up to 80 MB maximum.

Are my files stored?
No. No files are stored on our servers. Only the digital fingerprint calculated from the file is recorded in the registry.

What is a digital fingerprint?
A digital fingerprint is a unique technical representation of a file’s content. Any modification of the file would result in a different fingerprint.

Verification

How can I verify a proof?
Any issued proof can be publicly verified via our verification page. Simply provide the proof identifier.

Does verification require the original document?
No. Verification relies solely on the fingerprint recorded in the public registry. The original document is not required.

Pricing

How much does one proof cost?
The base price is €29 per proof. Volume packs are available to reduce the cost per use.

Is there a subscription?
No. Codex operates on a pay-per-use model, with no mandatory monthly subscription.

What is the validity period of a Codex?
Codex records remain publicly accessible without time limitation. For governance and professional usage reasons, we recommend a validity commitment period of 1 year from the date of issuance.
The applicable terms of use are those in force at the date of issuance.

Support & contact

How can I get help?
You can contact our support via the contact page or through your professional account if you are already logged in.

Legal positioning and role of Codex

The use of a notary or public officer is essential in situations where the law requires it. Codex operates upstream or as a complement, within a logic of prevention and clarification.

Legal professionals remain the primary actors.
Their role is fundamental in analysis, advisory, drafting and securing legal acts.
Codex complements their work. Codex is a new tool.

It constitutes a technical support mechanism intended to formalize the existence of a document within a logic of prevention and clarification.