Durable medium platform

Durable Medium ProService Finteco platform – safe access to documents with a guarantee of integrity and immutability of records, also after the end of the client’s cooperation with a given institution.

What is access to documents on a durable medium

A durable medium is a legal concept introduced by the European Union in 2017, requiring financial institutions to provide their clients with documents using a durable information medium, which guarantees the invariability of records and access to them also after the end of the client’s cooperation with a given institution.

Durable Medium ProService Finteco platform – see how it works

Access to documents on a durable medium is available on the Durable Medium ProService Finteco platform. It guarantees the integrity, security and non-repudiation of the information stored in the stored documents.

The document published on the Durable Medium ProService Finteco platform is divided into encrypted fragments, of a fixed size, and then these fragments are separately recorded in transactions on distributed registers. Submitting the original document as a whole requires downloading information and relevant fragments from the Platform, which can only be done by the institution and the client of this institution.

Publishing a document on the platform

Sending a notification to the client (e-mail, text, push notification in the mobile application) with decoding keys)

The client collecting the decoding keys

Downloading a document by the Platform client using the link and codes)

  • If the client loses the links to documents, s/he can log in through the Portal
  • If a contract with the client is terminated, the user will be able to use the portal of historical data, which will always be working, regardless of whether the source system that powers the Platform with documents is working

What do you gain with the Durable Medium ProService Finteco platform

  • Cryptographically guaranteed durable medium features.
  • Service of private (e.g. a contract) and public documents (e.g. regulations, fee charts).
  • Lack of possibility to modify the documents introduced into the system.
  • Lack of possibility to remove documents.
  • Life access to documents.
  • Ability to share a “link” to the document.
  • Access to documents through the portal and mobile application.
  • Ability to add documents by clients of financial institutions.
  • A unique access code to the document (UAK/CID/”content address”).
  • Storing content of any type (PDF, audio/video, accounting documents, transaction logs, CDR).
  • Coding “in transit” and “at rest” data according to KNF recommendations.
  • Compatibility with GDPR.
  • Access to documents 24/7.
  • Electronic signature consistent with eIDAS).

Why is it worth using the Durable Medium ProService Finteco platform

  • Full compliance with regulations on the durable medium (confirmed with the audit of the Institute of Systemic Research PAN and a positive opinion of KNF from December 2020).
  • Low cost of implementation and maintenance (TCO).
  • Easy implementation. – Ability to integrate with the existing systems through API and micro-services.
  • Ability to adapt to client’s needs.
  • Elimination of paper.
  • Benefits for the environment and reducing the CO2 emission.

See how to implement our solution

The Durable Medium platform has all features of a durable medium such as WORM matrices, but it guarantees much lower costs of implementation and maintenace. In addition, contrary to the WORM matrix – it ensures: the lack of possibility to remove documents, multi-node clusers of efficiency and reliability, as well as the high level of re-duplication of the document content.

The platform is implemented in two models:


ProService Fintence ensures access to the Platform in the Managed Services model, using own data processing centre. ProService Finteco ensures the Platform clients with access to documents also after ending the client’s relation with the financial institution. The institution only has to ensure the proper interfaces for transferring docuemnts to/from the Platform. It is also possible to share client’s documents to the institution through the platform of this institution (e.g. online banking) via API to the Durable Medium platform.


ProService Finteco implements the Platform on the IT environemnt, provided by the financial institution which – after the implementation – independently manages the Platform, with the support of ProService Finteco. The institution should also provide the correct interfaces for transferring documents to/from the Platform.

How can we help your company?

The functionality allows replacing the traditional mass mailing to investment fund clients by providing access to the content of transferred information using the so-called durable medium meeting the requirements specified in art. 2 clause 2 point 41 of the Act on investment funds and management of alternative investment funds. The customer gains access to the information stored in the file through the distribution system (e.g. STI 24) or a link transmitted by SMS or e-mail.

The file is placed on a specially prepared platform that provides:

  • permanent saving of information intended for the client without the possibility of modification, deletion or concealment,


  • no possibility of invisible deletion/withdrawal of access to information intended for the client by both the fund and the client – for the period required by law,
  • access to information intended for this client also after his participation in the fund has ceased.

Let’s talk about durable media platform

Order a telephone conversation using the form or contact our expert directly – we will advise you and help you!

Tomasz Kowalik

Sales Director of the ProService Finteco Group

+48 668 837 348

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