A person setting his seal to a document


Hyperledger-Based Solution for Multi-Signature Document Flow Management

  • Web
  • Smart Contracts
  • Permissioned blockchain
  • Document management
  • Hyperledger Fabric

Permissioned blockchain document management platform that enables executives and shareholders to vote and pass resolutions within one web application


Project goals

Create a private blockchain-based document management solution that will allow the board of directors to sign proposed documented decisions, vote on resolutions, and put forward alternatives in case of disagreement.

Work done

Permissioned blockchain built on Hyperledger Fabric Web UI for all stakeholders and co-signatories (principals, their representatives, and company clients) Full automation of decision making


We have created Flact – a fully functioning MVP web application powered by Hyperledger Fabric. The app uses smart contract technology, which also speeds up the decision-making process. This MVP’s architecture is built in such a way that Flact can be easily modified and updated in a timely manner.

Technologies used:



The client, Rinne Technologies, aimed to build software that would automate the entire document management cycle and provide companies’ decision-makers with a highly secure platform for running multi-signature document flow. The client put safety and reliability at the top of all requirements.

  • Provide a seamless approval/voting process
  • Saving the history of voting and messages
  • Ensure uncompromised security to prevent document fraud


Typically, the process of considering, discussing, and making an important decision requires all board members, shareholders, and clients to physically attend the meeting and vote on a resolution. PixelPlex has developed a solution with the main goal of automating these procedures and transferring all stages of resolution approval or rejection to one web application.

Our engineering team has applied a multi-tier access restriction system to our blockchain-based application to ensure data security and source reliability.

One of Flact’s main features is the ability to invite co-signatories to the application and notify them about changes, activities completed.

Blockchain features such as transparency, immutability, and enhanced security make it an ideal basis for building a document management platform. Once the document is uploaded and recorded to Flact, it becomes immutable and cannot be tampered with.

Flact’s infrastructure

  • Web UI for all stakeholders
  • DLT network for documents storage
  • Secure API gateway for data access

Main capabilities

  • Start-to-end management of the approvals and voting
  • Data encryption and hashing
  • Preventing document falsification
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Project features

Blockchain-based network and voting process Account creation and login for all stakeholders Detailed logging and viewing of co-signatories' actions Voting verification by third-party providers (if necessary) Transparent process history Intuitive UX/UI design Short links plugin System instance setup for each organization Authentication via email and password Receiving notifications via e-mail and SMS

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