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SKALE blockchain

Skale chain is a unique multichain network capable of running unlimited number of secure, decentralized, high-performance blockchains that are native to Ethereum.

In a sense, Skale is a Layer 2 scaling solution for the Ethereum blockchain with multiple unique features like:

  • EVM compatibility,
  • Fully decentralized,
  • Zero end-user gas fees,
  • High throughput with fast block times,
  • Instant finality,
  • Modular, customizable and fast L2 bridge,
  • On-chain file storage and
  • Pooled security with randomized node selection and rotation.

Skale’s architecture supports an ever-expanding set of dApp-specific chains, which makes it quick and easy to set up cost-effective multichains that run smart contracts compatible with Ethereum.

In essence, Skale provides a separate blockchain for each dApp, but utilizes the same validators that rotate frequently, to provide the processing power needed to run the smart contracts and validate transactions. The whole system is similar to sharding with the difference that in Skale, each sub-chain is a kind of a shard and each sub-chain is only loosely coupled with the rest of the whole multichain network. This can be achieved by having app specific sub-chains (shard). If one of the sub-chains has a malfunction, the other chains will be unaffected by it and the system will continue running. With classical sharding model this is not possible.

Skale utilizes algorithms that have been mathematically and practically proven as secure. Its consensus algorithm is Byzantine Fault Tolerant (BFT) accounting for up to one third of participants possibly acting malicious. It leaderless consensus mitigates the possibility of collusion among network participant by ensuring that each has an equal chance of successfully propose and commit new blocks. The nodes in the network are structured asynchronous, similar to how Internet is structured, meaning that they are only loosely coupled and therefore the system can function normally even if some messages are not delivered on time. Treshold signatures enable efficient interchain communication and support randomness in node allocation.

Skale is designed so, that there is no network healing time needed, meaning that transactions have instant block finality. No more waiting for days to be 100% sure your transactions cannot be changed anymore.

Skale utilizes all the existing Solidity tooling that is the most extensive in the blockchain space to date. This allows easier, faster, and cost-effective development. EVM is by far the most widely used smart contract platform with most best practices, design patterns and online support. This in turn allows for more secure development as many code design patterns have already been tested and proven secure (or otherwise).

This also means that the same wallet, token standards and other tooling form Ethereum can be used freely. This way users and developers can use the tools that they already have installed and know how to use.

Skale is interoperable with Ethereum through a bridge called Interchain Messaging Agent (IMA). IMA allows transferring of any token standard or message between Ethereum and Skale, using BLS (Boneh–Lynn–Shacham) Treshold cryptograph to secure transfers.

There are many excellent and progressive thinking features integrated into Skale. There is improved performance and scalability, security and additional features like native on-chain storage, native oracles, randomness generator and other. The code is open source and regularly audited before each push to the main net.

One such push is imminent with Skale V2 main net that will bring chain interoperability that again will be fast and zero gas-fee. This paves the road for new projects that are already in active development on the test net, the most important being a high level DEX Ruby.

Version 2 also bring native FIAT onboard and offramp that will be incredibly valuable to 3air for easier onboarding of clients that are not yet familiar with blockchain and crypto.

For regular smaller transactions as are used in monthly subscription payments it is important to have low fees for the end user. Skale offers feeless transactions for the end user. There still needs gas to be paid for transactions for security purposes, but the sFuel has no commercial value and can not be bought. sFuel is free to claim but only in reasonable amounts that prevent malicious attacks that have been plaguing low fees blockchains lately.

Another exciting feature is protection from front running from the miners (validators). The concept uses BLS Treshold cryptography that encrypts transactions and encrypts them only once they are in the block. This means that the validators don’t see the actual transactions therefore cannot sort or front run them.

All in all, Skale is currently one of the best scaling solutions for Ethereum right now. The development looks sound, and the team is extremely professional and capable of delivering on an exceptional blockchain. Development roadmap is being held and till now no real issues have come up. The chain is already operational for over one year and it is getting the V2 upgrade in March 2022, that will make it interoperable with other projects, creating a powerful network of dApps that can work together in a safe, fast and feeless environment.

Additionally Skale team is welcoming 3air as a project and ready to help it grow in many aspects parallel to only providing a blockchain layer.