L.STAMP is a LutinX application that applies a certified timestamp to any digital document, file, or image.
This timestamp provides verifiable proof of the exact date and time of creation, ensuring data authenticity and integrity through Blockchain registration.
Each file processed by L.STAMP receives a unique cryptographic hash, permanently recorded on the LutinX Blockchain.
This record cannot be modified or deleted, making it legally valid as evidence of existence under international standards.
Registers and certifies the existence of a document at a precise time
Generates a Blockchain record with a unique hash and timestamp
Ensures data integrity — any change to the original file would invalidate the proof
Provides legal reliability under eIDAS, GDPR, ISO standards, and the Berne Convention
Log into your LutinX account, or register for free if you don’t have one.
Private users start with 10 registrations, which can be upgraded to 30 by completing KYC.
If you are a business or professional, you will need to purchase a license suitable for your usage.
(👉 go to licenses page).
👉 Tip: completing KYC unlocks more registrations and speeds up access to advanced features.
From your main dashboard, click the app menu and select L.STAMP.
Timestamp = fast, minimal, proof of existence at a given date.
With this procedure you can generate an immutable certificate about the files you have created.
Drag and drop your document or select it from your computer.
Maximum size: 10 MB per file (up to 2 files per operation).
Accepted formats: jpg, jpeg, png, mp3, mp4, pdf.
Fill in the required fields such as Title, Author, and (if applicable) Co-Author.
Select the email associated with your account and, if desired, choose whether to make your Internet Address public.
You can also select the preferred signature layout (short or long side).
Once the file is uploaded, click Deposit.
L.STAMP will instantly generate a legal timestamp stored on blockchain.
To check your notarized files, go to the Uploads section in your dashboard.
Here you will find:
✅ File name
✅ Private QR code
✅ Public QR code (shareable link)
✅ Explorer link (to verify the blockchain record)
✅ Original file
✅ Date of registration
The Block View:
The List View:
Once the process is completed, you can download the certificate or verify the timestamp through the LutinX Explorer using the file hash.
This allows public confirmation of the document’s existence and timestamp without revealing its content.
L.STAMP offers a reliable and straightforward way to certify the existence and integrity of any digital file.
By applying a Blockchain-based timestamp, users can prove authorship, creation date, and data authenticity with full legal validity.
Whether used by professionals, institutions, or individuals, L.STAMP ensures trusted digital certification across all sectors.
