Blockchain technology proposes the ideal foundation to simplify digital sensitive documents or file exchange. To address this issue in 2017, 4thpillar technologies (i.e. 4THTECH), proposed and later develop a safe, fast and inexpensive blockchain-based solution, a future way of sensitive document exchange and eDelivery (i.e. FOURdx). To provide an option for blockchain address ownership verification, the identification mechanism (i.e.FOURid) was constructed in 2018, which could eventually lead to some form of individual digital identity and authenticate verified connection between a blockchain wallet and a person. After two years of FOURdx MVP testing, the concept has been validated, tested on early adopters and recognised as blockchain development suited for eDelivery needs. Follow the link below for full roadmap recap.


  • September 2017

    4thpillar technologies whitepaper 1.0 publication

  • November 2017

    4thpillar technologies formalisation

  • November 2017

    Start of the initial research and development

  • December 2017

    4thpillar technologies (i.e. 4thtech) online brand development


  • February 2018

    4thtech Google Chrome add-on deployment

  • April 2018

    Blockchain eDelivery protocol beta Ethereum deployment

  • April 2018

    four-token (embedded TTS, MTO and transaction gas) TGE

  • September 2018

    digital identity mechanism (i.e. FOURid) deployment

  • October 2018

    4thpillar technologies whitepaper 2.0 publication


  • January 2019

    Early Adopters beta testing program

  • May 2019

    eDelivery use-case formulation

  • November 2019

    HI-WISE partnership


  • February 2020

    HashNET (i.e. scalable, decentralised blockchain project) partnership

  • February 2020

    SI-Chain (i.e. Slovenian national blockchain test infrastructure) partnership

  • April 2020

    2 year Early Adopters beta testing phase completed

  • April 2020

    4thtech and HashNET consortium formulation

  • April 2020

    blockchain eDelivery cross-platform client technical paper publication

  • May 2020

    4thpillar technologies whitepaper 3.0 publication

  • May 2020

    INEA 2020 CEF Telecom Call - eDelivery (CEF-TC-2020-1) application

  • June/July 2020

    Deployment of blockchain eDelivery protocol (i.e. FOURdx) on SI-Chain

  • July 2020

    4thtech at Virtual Workshop Towards Global Interoperability Blockchain Infrastructure in Geneva

  • July/August 2020

    The launch of Si-Chain blockchain eDelivery protocol (i.e. FOURdx) testing program

  • December 2020

    The start of initial research and development for blockchain eDelivery cross-platform client