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FAQs | Frequently asked questions

We've tried to answer the most frequent questions about 4thTech, Technology and Features, Interoperability and Uses. This list will be updated as we go. If you still have some questions, try our Support platform or Contact us.
General Info.
Broad questions about 4thTech
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Tech. & Features
More about our Technology
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Multiple blockchains and how we use them
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What can you do with 4thTech software
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FAQs | General Information

What is 4thTech?
Next-gen multi-chain platform that enables E2EE (i.e. end-to-end encrypted) Web3 communication in the form of dID, dMail, dChat & dNotary.
What is FOURwaL?
To enable multi-chain adoption and bridge the gap between cross-chain deployed protocols, a unique wallet solution had to be developed. With a single purpose, the 4thTech non-custodial wallet framework (i.e. FOURwaL) serves as a multi-blockchain gateway, a unique tool for UI-platform access. It also enables white-label partner projects to adopt the 4thTech multi-chain solutions (i.e. dID, dMail, dChat, dNotary) and bridge a gap between Ethereum, Polkadot and Solana based networks, while still having the option to include their native Ethereum (i.e. ERC20, BEP20, POS) based tokens as an incentive to enable additional feature access or transaction fee discounts.
What is the 4thTech UI-platform?
The 4thTech UI-platform serves as an onboarding hub accessed by the user via Chromium or Firefox browsers with an installed FOURwaL blockchain wallet add-on. It connects and hosts all the 4thTech protocols and services in one ecosystem, giving the user all in one access to; (1) powerful multi-chain wallet; (2) FOURid, on-chain digital identity; (3) FOURdx, E2EE dMail; (4) FOURns, dNotary verification protocol, and; (5) FOURim, wallet-to-wallet E2EE on-chain dChat. 
FOURid Protocol?
4thTech’s Digital Identity Protocol connects entities, organizations, and individuals in a decentralized internet. It connects wallets when data is exchanged and serves as the public key exchange point between users (i.e. sender needs a public key of the receiver). With its native design, the FOURid identified data and its owner while enabling true Web3 dID. It can be used also to assign digital cryptography-based identity certificates, such as X.509 to different entities such as individuals or organizations. To clarify further, the FOURid provides wallet address verification of an individual or an organisation by creating a link between an X.509 user’s online identity and blockchain wallet address.
FOURdx Protocol?
FOURdx is 4thTech open-source Web 3.0 dMail solution. Unlike current centralized emails, FOURdx leverages trust sourced from the blockchain & provides E2EE wallet A to wallet B (i.e., FOURwaL) dMail data exchange.
FOURns Protocol?
The FOURns open-source protocol leverage the power of blockchain to facilitate source and time confirmation for any data files exchanged within the 4thTech ecosystem. It acts as a fraud prevention process that enables data file authenticity and guarantees that the data file has not been changed in the course of a transaction between users.
FOURim Protocol?
The FOURim open-source protocol secures your Web3  W2W E2EE on-chain dChat communication.
Where is blockchain used?
• The FOURid Protocol connects wallets (i.e. Ethereum, Tolar, Edgeware & Solana) when data is exchanged. It serves as the public key exchange point between users. The data sender needs a public key of the receiver.
• FOURdx Protocol is defined as a dMail that supports data exchange between wallet addresses of supported blockchains (i.e. Ethereum, Tolar, Edgeware & Solana). While the exchanged digital data is stored off-chain, the blockchain provides users with a link to encrypted off-chain files. The link to the JSON metadata file is recorded on a blockchain as a part of the FOURdx Protocol smart contract transaction.
• FOURns Protocol enables sensitive data file timestamp and origin verification using blockchain transaction and file checksum, which is stored on the blockchain.
• FOURim Protocol can be defined as a dChat that supports on-chain messages exchange between wallet addresses.
What is stored on-chain and what off-chain?
A database represents an organized collection of data, stored and accessed electronically. There are 4 databases forming in the 4thTech system; 

• MySQL database is used to store; (1) user nicknames; (2) platform settings; (3) user wallets, and; (4) RSA public key for data encryption. dMail Data exchange within the MySQL database is protected with an HTTPS connection and a firewall. In the case of a user request, it is possible to delete any user-related data to comply with GDPR regulation; 

• data file cloud repository is used for the temporary 7-days dMail storage of encrypted data files that are exchanged between wallets in the FOURdx process. The decryption of the data files is possible only with a private key of the user. Data file cloud repository is protected by a firewall. In the case of a user request, it is possible to delete any user-related data to comply with GDPR regulation;

•  local storage is used to store; (1) FOURwaL private keys; (2) dChat short messages, and; (3) user-initiated backup of conversations, data files and reports; 

• blockchain (i.e. Ethereum, Tolar, Edgeware, Solana) is used to store; (1) a link to the encrypted metadata file and timestamp (dMail); (2) encrypted message, timestamp and sender address (dChat). The overall security of the blockchain network depends on its decentralization, while access security depends on the user's private key safety measures.
Did the London hard fork (EIP-1559) have any effect on the 4thTech protocols?
Ethereum’s London hard fork or the Ethereum Improvement Proposal 1559 (EIP-1559) did not affect 4thTech services or protocols. 
Is FOUR utility or security token?
4thTech token (i.e. FOUR) is the ecosystem native utility token planned to be one of the technical components needed for the 4thTech ecosystem tokenization and used as the primary means to enable software licence access and community signalling. According to the legal opinion of YSL Legal LLP, the four-tokens are not “capital markets products” as stipulated or contemplated under the Securities and Futures Act by virtue of the Token Functions. Therefore, FOUR is a utility token.

FAQs | Technology & Features

What is 4thTech 2.0?
4thTech 2.0 refers to a set of UI-platform system upgrades in 2021 that made 4thTech more user-friendly, more interoperable, with the purpose of making the software more adoptable.
What is 4thTech 3.0?
4thTech 3.0 refers to a set of UI-platform system upgrades that are coming in 2022. The 3.0 update brings design unification and a set of new features. As a part of the 3.0 update, the platform front-end and back-end will be separated to achieve the first steps toward platform decentralization. 
What is X.509 standard?
X.509 standard digital certificate can be used for data encryption, notarization of signed data, digital signature, digital identity verification and timestamp. With various European Union certificate publications, the X.509 standard is widely used and as such appropriate for blockchain digital identity integration. The X.509 Public Key Infrastructure is also approved by eIDAS (i.e. electronic IDentification, Authentication and Trust Services).
What will 4thTech SDK be used for?
Multi-chain SDK framework will enable Web3 partner projects to integrate the 4thTech dMail & dChat layers directly into their UIs or wallets.

How can 4thTech be a GDPR-compliant application?
The 4thTech protocol does not store any personal data on the blockchain. The data is stored off-chain. The protocol records links to encrypted files and hashes of the encrypted content on the blockchain. The hashing of exchange data enables the GDPR compliance, for example, if there were a request to delete some data (i.e. documents), the network controller would be able to delete the requested data from off-chain storage, leaving what would then become an empty hash on-chain.
What is 4thTech governance signalling?
4thTech Signalling is designed to give the community insight into the most impactful decisions concerning the development and project multiverse expansion. Snapshot is used to enable FOUR token community holders to signal their preferences on the project proposals.

FAQs | Interoperability

Why is multi-blockchain interoperability such an issue?
It took us more than four years to enable multi-chain interoperability, as a result, 4thTech solutions are now compatible with all Ethereum, Polkadot and Solana based networks. 
What are the main benefits of multi-blockchain interoperability?
The main benefit is to enable the users with more control over the choice of which blockchain to use when exchanging data. It all comes down to the user's preference. If decentralization is the key, then Ethereum with its 10k+ nodes is the obvious choice. The transaction will cost more and it may take up to 30 minutes to execute, but you will get the biggest decentralization factor when exchanging your sensitive data files. If you as a user are not so decentralization sensitive, then Edgeware, a Substrate of Polkadot could be your chosen network. The transaction costs almost nothing and it is executed almost in real-time. 
Why does 4thTech support Polkadot Substrate?
Polkadot is a sharded blockchain, meaning it connects several chains in a single network, allowing them to process transactions in parallel and exchange data between chains with security guarantees. Thanks to Polkadot’s unique heterogeneous sharding model, each chain in the network can be optimized for a specific use case rather than being forced to adapt to a one-size-fits-all model. Due to Polkadot’s ability to bridge blockchains, 4ThTech compatibility with Polkadot Substrates plays a vital role in future cross-chain interoperability. The 4thTech's Polkadot ecosystem deployment enables future interaction like electronic data and documents exchange with external networks like Ethereum, where 4thTech is already deployed.
Why does 4thTech support Solana?
Up to now, on-chain instant messaging deployment would be hard to achieve due to slow blockchain network speed, congestion and transaction cost. With the arrival of the Solana blockchain on-chain, messaging is has the potential to become a reality. To address this issue the 4thTech, developed a unique, safe, Solana-based solution, which leverages blockchain trust and provides private, immutable, wallet-to-wallet E2EE dChat.

FAQs | Uses

What utility can I find in FOUR?
4thTech token (i.e. FOUR) is the ecosystem native utility token planned to be one of the technical components needed for the 4thTech ecosystem tokenization and used as the primary means to enable software licence access and community signalling.
Where can I personally use 4thTech?
Send, receive dMails, verify your data using dNotary or exchange on-chain messages with no ads, no data mining and no tracking. Secure your decentralized communication, connect with 4thTech.
Where can I use 4thTech in my company?
4thTech ecosystem enables enterprises to solve important blockchain challenges within a niche industry of on-chain identity, data file exchange, eDelivery, on-chain data notarisation while providing scalable, compliant, interoperable, multi-blockchain solutions.
The scope of the Company’s services is exclusively limited to providing you access to the technology that enables an exchange of data files and messages with the other the users that are not qualified as crypto-assets, cryptocurrencies, virtual currencies or similar digital representations of values under the Laws of any jurisdiction in the world.

The content of this website is provided for information purposes only and is not to be used or considered to be an investment recommendation or an offer or solicitation to buy or sell any securities or tokens. Read more in the 4thTech Terms of Service and the Disclaimer section.
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