Blockchain Partner

Blockchain Partner (the SME Applicant) is the French leader in blockchain development. The startup helps companies (EDF, Aéroports de Paris…) and public institutions (Banque de France, State of Geneva…) to explore and deploy these technologies, drawing on a range of expertise – strategy, technique, legal – unique in France.
Our partner (a Service Provider) is Losinger Marazzi, one of the major players in smart cities and construction in Switzerland. As a company focused on innovation, Losinger Marazzi is building smart and sustainable infrastructure to meet the demands of an ever more complex, interconnected, and mobile society.

In the first quarter of 2020, we develop, with our partner,  a fully functional decentralized voting solution named EKLESIA. This solution will be used to implement local governance in an eco-neighborhood, based on the concepts of direct and liquid democracy. This eco-neighborhood is developed and built by Losinger Marazzi, and they will provide the citizens with a toolbox for governance, including this decentralized voting solution.

This solution has been co-created with the end users – the cityzens and the local governance board. It mobilizes cutting-edge technical tools, such as Zero-Knowledge-Proof encryption for mixers, on-chain key management systems E725/735, and User Experience design and implementations tools.

To enable this solution to scale and reach new markets we decided to submit an application to Blockpool. The grant would allow us to get maximal adoption through further investment on UX, as well as invest in the diffusion to new eco-neighborhoods, and even investigate other governance situation where the tool could perform (eg. corporate governance).


Government & Smart Cities


Blockchain Solution Description

In the context of smart cities, there is a need to offer tools for smart governance : inhabitants must be able to vote for proposals that have an impact on their neighborhood life. Our decentralised voting system Eklesia is specially designed for this use case.

Even if electronic voting is not new, there is still a lot of progress to be made to meet all the criterias of an efficient electronic voting solution that respects privacy by design.

In this sense, an ideal solution would : 

  • guarantee that only users who have the legitimacy to vote can vote
  • guarantee that no one – even the developers of the solution – has access to individual votes
  • guarantee that a third party can audit the voting procedure to ensure the integrity of the results (e.g. no one can vote more than once)

A solution that manages to meet all the criterias could have massive implications for the future of electronic voting. Our solution, promising though early stage, meets these three criterias.

To achieve this, our solution relies on several technologies associated with BDLT, of which the most critical is Zero-knowledge proof (ZKP). By definition, ZKP is a cryptographic tool which allows the processing and exploitation of data, without having to reveal them, by generating and exploiting cryptographic proofs. This is especially useful for, say, sensitive, personal or confidential data, which lawful treatment is critical in most companies, especially since the new GDPR legislation.

Team Members Brief Description

Charles Aubert-Couturier
Head of Project

The referent of the project will be Charles Aubert-Couturier. Charles Aubert-Couturier is Head of Project at Blockchain Partner. He will ensure that the project is delivered on time and without additional cost.

Linkedin Profile:

Philippe Métais
Lead Developer

This project will be mainly developed by Philippe Métais. Philippe is a lead developer at Blockchain Partner, he was the main developer on the RCI project (extensive use of ZKP for data sharing while being GDPR compliant). Along with his development activity, dedicated weekly research & development days allow Philippe to spend time on research topics that he finds the most promising.


Maxime Hagenbourger

Philippe may additionally and occasionally receive support from Maxime Hagenbourger, CTO of Blockchain Partner. Maxime’s accurate knowledge of Ethereum frameworks would be precious to unlock and advantageously extend the project.

Linkedin Profile:

Wassim Hanahem
Development of Interfaces / Front-end developer

Linkedin Profile:

Hugo Moley-Cirot
UX Designer

Linkedin Profile:

Louise Wernert
head of project for the development of sustainable neighborhoods

She will be the main point of contact to collect user feedback.

Linkedin Profile:éronnière-46120330/

The EKLESIA project is sponsored by Thierry Denuault, Western Switzerland Development Director of Losinger Marazzi.

Linkedin Profile: