4thpillar technologies updates

  • February 2020, SI-Chain partnership
    4thpillar technologies joined the Slovenian national blockchain testing infrastructure called SI-Chain. The Si-Chain implementation of 4thpillar technologies electronic data and documents exchange protocol and identity mechanism is underway. Supported by Slovenian Ministry of Economic Development and Technology, powered by HashNET and Telemach, Si-Chain was established in November 2019 with the intent to enable testing of existing and new blockchain applications for the public and private sector. More information
  • April 2020, 4thtech and HashNET consortium
    Supported and approved by Slovenian Ministry of Public Administration, the consortium was formed between 4thpillar technologies and HashNET, to enter the INEA 2020 CEF Telecom Call with the blockchain eDelivery solution and SI-Chain implementation. More information
  • April 2020, blockchain eDelivery cross-platform client technical paper publication
    After two years of blockchain eDelivery protocol (i.e. FOURdx) MVP testing, the technical feasibility and its practical potential have been proven, with that PoC (i.e. proof of concept) was confirmed. As the European Union is embracing the benefits of blockchain technology, now is the time for furthered development of blockchain eDelivery protocol (i.e. FOURdx). The development of blockchain eDelivery (i.e. FOURdx) cross-platform (i.e. Windows, Mac OS, Linux, Android, iOS) desktop and mobile client is specified in the blockchain e-delivery cross-platform client technical paper.
  • May 2020, CEF Telecom Call - eDelivery (CEF-TC-2020-1) application

    We have submitted CEF Telecom eDelivery Call application, with the objective to develop and deploy cross-platform eDelivery client, a DSI with a unique Access Point, that will leverage blockchain for electronic data and documents exchange. 

  • June/July 2020, SI-Chain deployment
    Si-Chain deployment of 4thtech electronic data and documents exchange protocol.
  • July 2020, 4thtech at Virtual Workshop Towards Global Interoperability Blockchain Infrastructure in Geneva

    UN/CEFACT Chain - Guidance for cross border interoperable blockchain infrastructure 4.0 was presented along with selected use cases on the 9th of July in Geneva. 4thtech eDelivery use-case presentation was presented at 12:00 (Geneva time). More information

  • August 2020, the start of SI-Chain partner initiative program 
    Join the SI-Chain initiative and SI-Chain partner testing program. SI-Chain Pilot transactions offer EMV smart contracts and Ethereum compatible dApp environment and as first application electronic data and document exchange and eDelivery .  SI-Chain initiative explores the necessary supporting tools for implementing Blockchain services and outline the technology infrastructures which can support high speed and scalable fourth generation blockchain technology.

Product Family

/**Developed and built by 4thpillar technologies, our products offer future solutions of:

“I see amazing possibilities in the 4THPILLAR TECHNOLOGIES products. The FOURdx, eDelivery serves as a system for sensitive document distribution between organizations and individuals and is based on blockchain technology. A truly innovative and amazing solution.”

Igor Zorko, ZZi


technology pioneers

4thpillar technologies infrastructure currently consists of four finished blockchain-based products; (1) blockchain eDelivery protocol (i.e. FOURdx); (2) digital identification mechanism (i.e. FOURid); (3) 4thtech add-on (i.e. Google Chrome extension with build-in asset management), and; (4) four-token (i.e. TTS, MTO & GAS).


Blockchain eDelivery has significant advantages, comparing to traditional eDelivery. It is based on a distributed model where the electronic data and documents exchange process runs between blockchain wallets, where private and public cryptographic keys are used for transaction authentication.

The current CEF eDelivery solution is based on a model, where the Access Points of eDelivery implement an electronic data and documents exchange protocol, which ensures secure and reliable data exchange. Trust is established between two public administrations’ Access Points and the electronic data and documents exchange is activated.

4thpillar technologies blockchain eDelivery protocol (i.e. FOURdx) leverage trust provided by the blockchain and provides secure, immutable, instant cross-border electronic data and document exchange. The protocol is also capable of; (1) connecting senders and receivers by executing electronic data and documents exchange; (2) performing eDelivery based on the current EU guidelines; (3) archiving securely encrypted data, and (4) following the GDPR guidelines.

The protocol was built in Solidity, tested on Kovan network and implemented on Ethereum main net in Q3 2018. In 2020 the protocol was deployed on SI-Chain which is based on HashNET.


For easier blockchain eDelivery protocol (i.e. FOURdx) understanding operational segments were created; (1) the electronic data and documents are uploaded to the FOURdx API (i.e. currently limited to 20MB file size); (2) the electronic data and documents are stored in the repository; (3) the user is provided with the “link” of the saved location; (4) the link is sent to the blockchain, and; (5) the recipient can download the electronic data or documents and decrypt it with his private key saved in the browser’s 4thtech add-on.


There is a constant need for online identity verification, and despite the move towards digital transactions, there is still the need to use physical identity documents. According to Economic Commission for Europe Executive Committee Centre for Trade Facilitation and Electronic Business Blockchain in Trade Facilitation: Sectoral challenges and examples, 2019, blockchain holds promise in this regard and could be used to create and verify digital identities, for individuals and organizations. These identities could be based on one or more indicators, which could include, for example, employer identity confirmation, past transaction histories, biometric data and more.

Blockchain eDelivery identity mechanism (i.e. FOURid), derives as a direct result of the existing blockchain eDelivery protocol (i.e. FOURdx). The identity mechanism is capable of individual wallet address verification from the authorized third party (i.e. employer, state, motor vehicle licencing department, etc.). A link is created between an individual (or organization) and their wallet, which holds the content and digital assets.

Designed and developed from the ground-up as a web application with web API, the current solution is fully operational and offers; (1) user on-boarding authorization through a KYC identification process; (2) receiver public RSA key storage; (3) verified connection between the user and his or hers blockchain wallet.

We propose the upgrade the existing identity mechanism, focusing at identity verification between organization and individual (e.g. the state and the citizens, schools and students, etc.), to enable the following identity verification mechanism; (1) fulfilment of the digital identity request form by the individual results in wallet creation by the eDelivery client; (2) the individual identification (i.e. KYC) is conducted using either personal identification, video call or some other already established method; (3) unique KYC verification code is issued by the organization; (4) digital identity encrypted verification data package is sent by the organization, through the smart contract to the receiver; (5) the verification data package is received and decrypted by the individual/receiver inside the eDelivery client; (6) the identity data package is confirmed by the individual by imputing the unique KYC verification code in the system; (7) upon the system data verification, the individual identity is confirmed. (Rezun & Jazbec, n.d.)


According to (Cryptocurrency wallet – Wikipedia, n.d.), a cryptocurrency wallet is a device, program or service which stores the public and/or private keys and can be used to track ownership, receive or spend cryptocurrencies. As all cryptocurrencies run on blockchains, cryptocurrency wallet can be referred also as blockchain wallets. Up to now, blockchain wallet was mostly used for cryptocurrency asset holding and exchange.

The 4thtech add-on is a Google Chrome Extension wallet, that allows you to visit the distributed web of tomorrow in your browser today. It is one of our main innovations, a first system on the market capable of handling not only digital assets but also other assets such as links to encrypted electronic data and documents.

Designed and build from the ground-up, the 4thtech add-on is fully operational and, also offers a secure identity vault, providing a user interface to manage digital identities and sign blockchain eDelivery transactions. 4thtech add-on can be comparable to a bank account, as it contains a pair of public and private cryptographic keys. A public key allows for other wallets to execute eDelivery to the desired wallet’s address, whereas a private key enables the decryption of electronic data and documents from that address.

Steps for installation; (1) follow on the link bellow; (2) add extension to chrome browser; (3) now you have installed extension, you can see icon on the right side; (3) click on that icon and setup your wallet; (4) refresh page and login.

4thpillar technologies does not hold your keys for you. We cannot access accounts, recover keys, reset passwords, nor reverse transactions. Protect your keys & always check that you are on correct URL. You are responsible for your security.


The FOUR has been created as a 100% utility-token, an atomic unit and technical component, combining three unique main features; (1) embedded TTS interface (i.e. token teleportation-service), that enables Ethereum accounts with the ability to transfer the ERC-20 tokens without having to pay for the Ethereum network transaction fees in ETH. Instead, the account pays for token transfer fees in the native FOUR; (2) MTO (i.e. multiple-transfer option) is a settlement service that conserves blockchain network transactions and bundles signed multiple transactions together and settles them on the blockchain (i.e. as one transaction). Once the transaction has been settled, the transaction is concluded. The bundling of transactions enables 4thtech platform to scale as the overall number of transactions generated on the designated blockchain network is kept at a minimum, and; (3) FOUR is used as main value and transaction “gas” in a decentralized, token-based 4thtech ecosystem. 

Token name: 4THPILLAR UTILITY TOKEN • Token symbol: FOUR • Blockchain: Ethereum • Maximum number of FOUR tokens issued: 400,000,000 (100%) • Decimals: 18 • Smart contact: 0x4730fb1463a6f1f44aeb45f6c5c422427f37f4d0 • Unique features: teleportation service, multiple-transfer option, transaction gas • Listing: IDEX, Hotbit, Bilaxy, Uniswap, Cointiger • Token standard: ERC-20 (latest Open Zeppelin implementation)

5.HI-WIZE hardware wallet

HI-WISE is an advanced PLUG&PLAY hardware wallet with futuristic uni-body design. Unique to the market, the HI-WISE has no openings and buttons, just a HI definition LCD and it is powered by Qi charging technology. 

Accompanied by unique mobile multi-wallet with unparalleled safety features and integrated anti-spying algorithms. The HI-WISE hardware and mobile solution bridges the gap between the FOURdx – eDelivery platform and final user experience. The HI-WISE can be used as an alternative to 4THTECH add-on, providing platform login, identification and transaction conformation features.