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the fathom whitepaper:

Status & Roadmap

This section will describe the current state of the different components the fathom-team is developing, how one can contribute and what we plan to build in the future. It also describes our plans to instantiate and initially support the network.


Smart Contracts

The assessment process of the fathom protocol as described in this document is fully implemented in solidity. The code, a testsuite and some supplementary simulations are in our gitlab repository.


We are also working on various user-facing applications to interact with the fathom protocol. The first of these is an arbitrary chat room application aloowing the creation of social environments based on on-chain data. We plan to use this as a platform for concept communities in fathom, as well as a space to conduct assessments. The code for this project is in this repository

How to Contribute

It’s our philosophy to work out in the open as much as possible, so this section will lay out the documents we are using to structure our work and the process by which we invite volunteers to contribute.

All parts of our project (smart contracts, frontend, chatroom, website, blog and this whitepaper) are in our GitLab repository. We keep the list of issues updated with tags to flag issues that are particularly suited for people wanting to contribute. We publish a weekly progress report on our blog to keep you updated about the development and about ways to engage with us and to help us prepare fathom for a successfull launch.

We appreciate any interest in fathom and seek input from individuals with all kinds of education- or cryptoeconomic-related backgrounds. Feel free to reach out to us at INSERTMAILHERE or to create issues in our repo.

Instantiating the network

Given that our desired incentivization of participants depends on their inability to make any assumption about each other, the network is vulnerable to malicious acting during its conception. Especially, the first assessors will be in positions of power, as they can be confident that they will be called for almost all assessments on existing and newly created concepts. Moreover, the chances of concepts to become established and attract a large number of users depends on their location in the concept-tree (see incentives). To avoid a situation where an otherwise well designed new concept can not unambigously be placed in the tree, we will instantiate the network with an initial set of concepts that cover a wide range of possible topics and assessors that have been deemed trustworthy to behave with integrity when assessing new candidates and concepts.

Seeding the network

While creating concepts is a single function call, adding a large number of assessors requires a fair amount of interaction from the involved parties. Therefore, we decided to write a special contract that is priviliged to shortcut the assessment process by directly calling the function of a concept that adds users as members.

The main functions of this contract, called the ‘distributor’ are addNextConcept() and addInitialMember(), which create a new concept and add addressess as their members. The number of calls to both functions are kept track of and can not exceed a previously-specified number, so that the distributor will become useless after having fulfilled its purpose.

All added concepts, addresses and their respective weights are also stored on the distributor, allowing everyone to see what was the initial state of the concept-tree, who were the initial assessors, what were their original weights and, most importantly, whether the distributor is capable of making further changes or not.


We believe that a participatory protocol tied directly to the communities practicing skills and defining ideas will diminish the gap between credentials that can be credibly assessed and issued and the wide variety of skills and abilities that people are capable of.

Tying economic incentives to this social process and ontology, such that they are both visible to everybody and aligned amongst all those participating, allows for fathom-credentials to be trustworthy and transparent.

By distributing the work required to communities, allows the system to scale and be accessible to anyone, no matter their previous records, achievements or socio-economic circumstances.

We believe that through these traits fathom enables a world where people are free to shape their own experiences, communicate them to others, and organize to achive shared ambitions.