Blockchain Protocol Translating Social and Economic Actions into Reputation

Built to bring distributed, transparent and scalable reputation system to the web.

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Despite the global digitization, the bottleneck of the digital economy is in collecting and processing the information to make a decision that requires trust. People and organizations face the decision trilemma:
Decision Trilemma:

Assessment of entities to deal with can’t simultaneously be effortless, quick and comprehensive

The U°OS reputation system scores digital entities based on the network’s feedback.

It enables people or businesses to make comprehensive one-touch decisions that require trust.


U°OS Reputation System is:

Operates algorithmically and does not belong to any centralized authority, which makes it censorship resistant.
Can be integrated into any other existing application via robust API and OAuth. It is open-source and sufficiently flexible to be adjusted to a specific context.
Transparency of blockchain-recorded data allows tracing causal links, which creates a holistic picture and increases trust to a digital entity (individual or organization).
Although all your activity on a blockchain is traceable, U°OS does not require you to reveal your identity in order to use the reputation system. You can either verify your account through various authorization methods or stay anonymous.

How It Works

U°OS Network Protocol

U°OS protocol is based on EOSIO open source code.

U°OS inherits its key features:
Zero-fee transactions
Account system
WebAssembly support
Smart contracts execution
Currencies and tokens support
and takes it a step further with:
DPoI consensus algorithm
Reputation system
Social transactions
Dynamic emission algorithm
DAC and DAO support
Importance (and thus, influence) of a digital entity for a network is achieved by the value they produce for others along with the amount of their stake in the network. The value implies their social and economic contribution to the network, that is reflected in incoming social or financial transactions from the other network participants. At the application layer, importance can be reflected as reputation, rating, score, etc.
Delegated Proof of Importance
DPoI consensus algorithm integrates the concepts of EOSIO DPoS with the idea that social interactions naturally generate economic activity between individuals or organizations. Consensus is achieved with the help of delegates. Delegates are elected by the network participants based on the Importance of each voter.
Social Transactions
U°OS protocol has a specific transaction type called social. Social transactions allow the exchange of non-monetary value in a blockchain. For example, U°Community dApp uses the social transactions to upvote, downvote, publish content and follow or trust users. Social transactions along with economic ones are used to calculate Importance of digital entities.
Download Yellow Paper


Dynamic Emission
Dynamic emission is introduced to provide additional liquidity during network growth. The indicator called Network Importance (NI) describes the total volume of social and economic transactions among network participants and is used as a trigger for additional emission. The emission takes place every time NI reaches its all-time maximum. Newly issued tokens are distributed among network participants according to their Importance rate.
UOS Token
UOS token is used as a currency and to purchase network resources:
processing power

How To Use

U°OS Can Be Integrated into Any Digital Network, Application or Service.

U°OS provides p2p market participants with a distributed reputation.

It is not confined to a single platform or context and reflects activity on all the platforms connected to U°OS reputation system. The algorithm itself is controlled not by a single entity, but by the members of the network.

The reputation is based on other members’ feedback, enabling each member to make comprehensive one-touch decisions on whom to deal with.

U°OS reputation system introduces the competitive gameplay elements to user experience of social media platforms by revealing the reputation of its members:

User’s reputation on the platform constantly changes depending on the feedback of other members.

User’s reputation determines the weight of his actions and his influence on the platform. Competition for influence between users increases user retention, engagement and LTV.

U°OS provides a toolset for governing communities and organizations. The power of vote can be set up in a community or organization smart contract and can be based on reputation rate. The governance is carried out by means of electing delegates and direct voting for any proposals: transactions on behalf of community, initiatives, changes or improvements.


Andrew Perepelitsa
Co-Founder, CEO
Alexander Petrov
Vladimir Sapozhnikov
Uladzimir Piaredneu
COO and Member of Management Board
Alexander Spirin
Product Manager
Kirill Romanov
Head of Design
Evgeny Ovsyankin
Head Of Legal
Ilya Shkurenko
Head of Marketing
Anzor Daurov
Head of Partnerships
Peter Yakimchuk
DevOps Engineer
Pavel Ivanov
Lead Front-End Developer
Peter Kotegov
Lead Blockchain Developer
Alexey Prokopov
Chief Scientist


Q3 2017 – Q2 2018
DPoI Research Phase
Transaction Activity Index Algorithm Research
Dynamic Emission/Inflation Algorithm Research
Social Layer Representation on the Blockchain Research
Q3 2018
Social Transaction Type Implementation
Importance° Algorithm Research
Importance°-Based Dynamic Emission Algorithm v. 2.0
Social Activity Index Algorithm Research
Activity Calculator Nodes
Q4 2018
Public Code Release
Importance° Algorithm Implementation
Public Testnet Launch
Dynamic Emission Algorithm Implementation
Importance° Voting for Block Producers
Q1 2019
Improvement Proposal System
Activity Calculator Node Candidates
Q2 2019
Distributed Trust/ID System
EOSIO Storage
U°OS Wallet
Block Explorer
Q3 2019
Account Profile Storage on Blockchain
Content Storage on Blockchain
Account Detailed Importance API
Q4 2019
Mainnet Launch
Security Audit
Q1 2020
Core Token Economic Model Update
External Widgets
Q2 2020
UAuth dApp Authorization System
DAC/DAO Management Interface
Q3 2020
Q4 2020
Native Desktop Apps


What is U°OS global mission?
Enable people to interact in the digital environment as sovereign individuals.
What is U°OS vision?
Be the basis of the global economic space in which parties from different economic systems interact without intermediaries at minimal cost.
How can I try U°OS out?
You can join U°Community, the U°OS-built social platform, where you can create content, govern communities, interact with others, earn reputation and get the testnet UOS tokens’ emission.
Can DPoI algorithm be used by other applications?
Yes, U°OS is open-source and free to use. As a developer, you can either join U°OS network or even deploy your own.
When is mainnet launch?
No earlier than Q2 2019.
When is UOS tokens airdrop?
No later than mainnet launch. The details will be announced later.
Where can I follow U°OS news and updates?