Trusted timestamping service for digital files

Proving when a file was created or acquired is crucial in many situations: copyright, intellectual property, rights protection, business projects, relevant communications, dispute prevention, or preparation of formal documents.

ContentProtector.eu provides a trusted timestamping service compliant with European eIDAS Regulation and international standards, allowing you to assign any file a legally recognized certain date.

Unlike informal methods (screenshots, emails, cloud storage), qualified timestamps are:

• independent from device or operating system,
• immutable,
• verifiable even years later,
• admissible as evidence in legal and administrative proceedings.

What is a qualified timestamp

A timestamp is a digital certificate that definitively links a file to a precise date and time.

According to the European eIDAS Regulation (EU No. 910/2014) and equivalent international standards such as RFC 3161, qualified timestamps benefit from legal presumption:

• the date and time are considered accurate,
• the certifier is officially recognized,
• the evidence is valid in European judicial and administrative contexts, and recognized in international jurisdictions following similar standards.

This makes it the most secure and recognized method for assigning a certain date to digital content.

Why certain date is essential for digital files

Qualified timestamps are essential when you need to:

• prove authorship of a work or project,
• demonstrate delivery of a file or document,
• certify creation of code, texts, graphics, photographs, or videos,
• protect yourself before collaboration with agencies, suppliers, or partners,
• document sensitive content (chats, threats, emails, screenshots),
• protect ideas and confidential documents in business or professional contexts.

In case of dispute, the qualified timestamp allows you to assert with confidence: “This file existed in this form at this date”.

How timestamping works on ContentProtector.eu

The process is simple for the user and rigorous from a technical and legal standpoint:

1. Secure file upload
   The file is transmitted through an encrypted channel, maintaining intact metadata and structure.
2. SHA-256 hash calculation
   We generate the digital fingerprint of the file, necessary for timestamping and future verification.
3. Application of qualified timestamp
   The file is timestamped through an officially recognized certifier at European level or equivalent international standard (RFC 3161).
4. Technical documentation
   An automatic page is created including hash, temporal data, verification instructions, procedure information, and FEDIS (Forensic Evidence Declaration & Integrity Statement) for internationally recognized forensic documentation.
5. Immediate delivery to customer
   The user immediately receives the certification and everything necessary to prove the certain date of the file even after many years.

What files can be timestamped

You can apply timestamps to any digital content, including:

• documents (PDF, DOCX, TXT, CSV)
• images and photographs
• videos and recordings
• audio files
• graphic and creative projects
• technical files and source code
• archives (ZIP, RAR, 7Z)
• and many other file types

Qualified timestamp vs “DIY” methods

Many people try to prove a file’s date with:

• screen screenshots,
• emails sent to themselves,
• cloud backups,
• unclear blockchain services.

Unfortunately, these methods are easily contestable and lack certain legal value.

Only qualified timestamps guarantee:

• certified certain date,
• independent verification,
• administrative and judicial validity in Europe and recognition in international jurisdictions,
• usability as technical evidence.

Difference between qualified and non-qualified timestamps

The market offers different types of timestamping services, but not all have the same legal value:

• Qualified timestamp: issued by accredited certifiers according to eIDAS or equivalent standards (RFC 3161), has full evidentiary value in Europe and international recognition;
• Non-qualified timestamp: can be issued by any entity, but does not enjoy legal presumptions provided by regulations;
• Blockchain timestamp: technically valid solution for temporal registration, but does not constitute a qualified timestamp according to current regulations and does not benefit from legal presumptions reserved for official certifications;
• System date: easily modifiable and lacking evidentiary value.

ContentProtector.eu exclusively uses qualified timestamps or RFC 3161-compliant timestamps to ensure maximum legal value for certifications.

Validity and preservation of timestamps

A qualified timestamp maintains its validity over time, provided that:

• the original file remains unchanged (verifiable via hash);
• technical documentation is properly preserved;
• the provider’s certification chain remains valid.

ContentProtector.eu provides all necessary documentation to verify the timestamp even after many years, ensuring persistence of evidentiary value over time.

Use cases for qualified timestamps

Qualified timestamps are successfully used in numerous professional and legal contexts:

• Creative sector: photographers, designers, writers, and artists who want to demonstrate priority of their works;
• Legal field: lawyers who need to document the acquisition date of digital evidence;
• Intellectual property: companies protecting patents, projects, and confidential documentation;
• Corporate compliance: organizations that must preserve documents with certain date for regulatory obligations;
• Contracts: parties wanting to certify the sending or receiving date of contractual documents;
• Software development: developers proving priority in source code creation for copyright or patent purposes.

Start protecting your files with certain date

If you need to prove when a file was created or acquired, timestamping is the most secure and legally recognized solution.

With ContentProtector.eu you can apply a qualified timestamp to any file, quickly, securely, and with a result fully usable in legal proceedings.

Don’t let the lack of a certain date compromise your rights: protect today what could be essential tomorrow.