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Building blocks · Proof

Order forms to print, sign and scan? A document altered after signature, a disputed date?

Electronic signatures, seals and time stamps, built into your journeys.

Electronic signatures, electronic seals and eIDAS time stamps, built into your journeys: your customers sign online, each document carries its origin and its date, and the slightest change shows.

Your brand SAS

25 rue des Entrepreneurs, 75015 Paris

SIRET 834 109 256 00038 · VAT FR59 834109256

Order form

No. 2026-1042

Date
20/10/2026
Valid for
30 days
Delivery
Within 3 weeks

Customer

Maëlys MARTIN

6 allée des Tilleuls

69100 Villeurbanne

DescriptionQtyUnit priceVATNet amount
7.4 kW charging pointSupply, installation and commissioning11,458.3320%1,458.33

Payment

On commissioning, by bank transfer

Total excl. VAT
€1,458.33
VAT 20%
€291.67
Total incl. VAT
€1,750.00

Approved · signed electronically by Maëlys MARTIN on 20/10/2026 at 14:02

Electronic sealYour brand

General terms of sale accepted on signing.

Right of withdrawal: 14 days (art. L221-18 of the French Consumer Code).

Your brand SAS, share capital €50,000 · RCS Paris 834 109 256Page 1 / 1
Reproduction · example order form

Proof of the document

Signed by Maëlys MARTIN · SMS code

Sealed in the name of Your brand

Time-stamped 20/10/2026 · 14:02:17

SHA-256 · 9f2c41e07a…b83d

At scale

Millions

of order forms, certificates and documents of every kind signed or time-stamped by our processes.

Order form no. 2026-1042

Your brandTotal incl. VAT €1,750.00Signature
Sign the document
Reproduction

Confirm your signature

Enter the code sent by text message to 06 •• •• •• 42

481906

Document signed

Reproduction

01Electronic signature

The problemPrint, sign, scan, send back: at every step, customers drop out.

Your customers sign on their phone.

The document to sign opens in the journey; a code received by text message, and it is signed. The signature goes through youtrust (formerly Yousign), and the signed document joins the file on its own.

  • Online signature, code by text message
  • With youtrust (formerly Yousign)
  • The signed document added to the file

Simple signature

Consent, proven

Code by text message or e-mail

Order forms, certificates

Advanced signature

Linked to the signatory, who is identified

Identity checked on an ID document

Contracts, mandates

Qualified signature

The effect of a handwritten signature

Qualified certificate

High-stakes deeds

Regulation (EU) No 910/2014, known as eIDAS

02Simple, advanced, qualified

The problemSigning everything at the highest level slows you down; signing too low exposes you.

The right signature level for each document.

The European eIDAS regulation defines three levels of signature. Each document in your journeys gets the one it requires: simple for an order form, advanced or qualified when the stakes call for it.

  • Simple signature
  • Advanced signature
  • Qualified signature

Signed and all signatures are valid.Signature Panel

Certificate of completion of worksSealed by Your brand SAS
Reproduction

03Electronic seal

The problemA certificate issued by you, altered by a third party: how do you prove it?

Your organisation’s seal, on every document.

An electronic seal guarantees the origin and integrity of a document issued by an organisation. Opened in a PDF reader, the document itself tells you whether it has changed since.

  • Origin of the document guaranteed
  • Integrity anyone can check
  • In your organisation’s name

Time stamp tokenRFC 3161

Document
Order form no. 2026-1042
SHA-256 hash
9f2c41e07a5d…c19eb83d
Date and time
20/10/2026 · 14:02:17 UTC+2
Service
Qualified time-stamping authority

The document existed, in this form, on this date

Reproduction · example values

04eIDAS time stamp

The problemA file’s date is a computer’s clock: it proves nothing.

The date, proven.

An electronic time stamp within the meaning of the eIDAS regulation attests that a document existed, in this exact form, at a given date and time. It is the document’s hash that is time-stamped.

  • European eIDAS regulation
  • Date and time attested
  • The exact document, not a copy

Live

See what is really sealed.

Drop a file or write a sentence: its SHA-256 hash, the value that signatures, seals and time stamps protect, is computed in your browser. Change a single letter: everything changes.

Write

SHA-256 hash

0000000000000000000000000000000000000000000000000000000000000000

Your file never leaves your device: the hash is computed in your browser.

  1. SHA-256Hash computedWaiting
  2. DemonstrationHash sealedWaiting
  3. ComparisonIntegrity checkedWaiting

How it works

  1. 01The document is producedOrder form, certificate.
  2. 02It is signed or sealedAt the level it requires.
  3. 03It is time-stampedWithin the meaning of eIDAS.
  4. 04It joins the fileVerifiable at any time.

Your questions

What we are asked most.

What is the difference between simple, advanced and qualified signatures?

They are the three levels of the European eIDAS regulation. An advanced signature is uniquely linked to the signatory and capable of identifying them; a qualified signature is also based on a qualified certificate and has the legal effect of a handwritten signature.

Which service do your customers sign with?

With youtrust (formerly Yousign), built into your journeys: your customers sign without leaving the journey, and the signed document joins the file.

What is an electronic seal for?

It is the electronic equivalent of an organisation’s stamp: it guarantees that a document really comes from you and has not changed since, without anyone having to sign it.

How do I check that a document has not been altered?

Open it in a PDF reader: the signatures panel shows whether the document has changed since it was signed or sealed. The demonstration above shows the principle, with the document’s hash.