The problem we are solving

The rapid and unpredictable spread of the COVID-19 pandemic is posing an unprecedented challenge to our global health systems, economies and social fabric. Comprehensive testing, education and awareness of potential illness exposure are a cornerstone of effective and preventative pandemic responses.

Contact tracing is a data management and monitoring tool, which enables the identification of individuals that have been infected and/or those who have been exposed to individuals with the illness to take preventative measures and self-isolate.

Countries with strong democratic values require voluntary tracing schemes for socio-political acceptance, but risk to data privacy and civil rights present a hurdle to adoption. For contact tracing systems are to offer an effective pathway to prevention they must be widely adopted.

While 82% respondents of a 60-person survey we conducted during the hackathon agree that contract tracing apps could act as an effective lever of pandemic response, only 63% were likely to use them if available. When asked if they were likely to use a contact tracing applications that effectively safeguard data privacy and user anonymity, respondents were 20% more likely to use them.

Effective solutions will require solutions that enable unprecedented global self-reporting schemes, privacy and anonymity coordination. To close the close the 20% adoption gap privacy-first infrastructure tools are required.

The solution you bring to the table (including technical details, architecture, tools used)

GoTrace is an an open-source, privacy-first developer toolset to equip crisis applications for global adoption

Our solution allows developers to leverage open-source blockchain and decentralized storage components to extend their social tracing applications with enhanced privacy and security features.

The technology needed is immediately available but is new in this application context. We offer an solution architecture overview and a solution framework for developers. This enables secure data sharing, anonymous ID, in-app notifications, and incentive functionalities (ERC721/20 Ethereum Token Standards).

As this solution is open source, existing and new global contract tracing applications can implement this technology to help accelerate adoption and flatten the curve. Attached, you will find a picture of the high level architecture of the solution, followed by a more specific architecture to cater to the Coalition Network use case.

What you have done during the weekend

Discovery: We began the discovery phase by defining our vision and assumptions of the proposed problem sphere. During the requirements gathering process we conducted market and technical research of the solution landscape. We also conducted qualitative (end-user survey) and quantitative (provider interviews) user research to validate our demand assumptions and scope our solution.

Delivery: We began the technical scoping and definition of success criteria as part of our technical delivery phase. We evaluated existing open-source tools and APIs we could leverage to devise the proposed solution architecture including system interactions and technical flows. Finally we evaluated our tech stack proposal against feasibility, delivery estimates and scaling analyses.

Submission: We began the submission phase through the collaborative evaluation of the product narrative and key insights. We devised a proposed strategy and timelines for PoC development through collaboration with one of our interviewed application providers.


  • Video Presentation (2min)
  • Presentation Deck (see attachments)
  • DevPost
  • Figma Prototype (see attachments)
  • GitHub Submission (see attachments)
  • Market Analysis (see attachments)
  • User Interviews (6 application providers - see deck)
  • User Survey (55 respondents - see link to SurveyMonkey)

The solution’s impact to the crisis

Social contact tracing systems can only offer an effective pathway to prevention if they are widely adopted. According to a recent Oxford Study, it may require 56% participation of a population to allow for efficient pandemic response and spread mitigation. In terms of the EU population, this would require voluntary participation by 249.2 million individuals to achieve the Oxford Study benchmark.

Our user research indicates that developing an open-source, privacy-first developer tool can offer a pathway to close the 20% adoption gap. This would represent 89.2 million individuals whose adoption offers a pathway to more effective crisis response tools and saving lives, without sacrificing data-privacy and user anonymity. Moreover, improving contact tracing tools can accelerate and improve large-scale socio-economic mobility management.

The necessities in order to continue the project

As the technology is build using open-source components, a PoC could be implemented in short-term (1-2 weeks).

Our next steps include the formalization of our solutions spec. GoTrace will contribute to the Coalition Network's open source code base and begin developing a PoC to integrate proposed Web3.0 components. Following this pilot implementation we plan to support the EU Governments and entrepreneurs with open-source tooling and developer resources to implement GoTrace into existing tracing applications.

The value of your solution(s) after the crisis

GoTrace can be used for privacy preserving data collection, native certification and incentive structures in a variety of other use cases across the crisis response and medical industry. For example, GoTrace could be implemented by a public health research institute to conduct anonymous user surveys with a privacy-perserving incentive scheme.

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