Sei (SEI) is a sector-specific Layer 1 blockchain, specifically designed to optimize trading. It strives to provide an edge to exchanges by aiming to offer speed, scalability, and reliability. Sei is a Layer 1 blockchain that aims to handle a high number of orders per second, with a transaction finality of 380ms. It seeks to be secured by large institutions and is built with a deep commitment to security. Sei is fully open-source and offers native frontrunning protection, seamless interoperability, and multiple levels of transaction bundling. It is designed to evolve alongside the industry, with modularity enabling the Sei technology stack to leverage new innovations as governed by the community.

Sei operates using a Twin-Turbo Consensus mechanism, which allows it to aim to be a high-speed blockchain, all while maintaining low transaction costs and industry-leading throughput. It is secured by Proof of Stake, which is a consensus mechanism that allows for high scalability and security. Sei's infrastructure is designed to prioritize security above all else, with the aim to have the backing of large institutions. It also offers user-centric features such as native frontrunning protection, seamless interoperability, and multiple levels of transaction bundling. Sei's design allows it to scale with the industry, aiming to support a variety of apps.

Sei is primarily designed to enhance the trading experience on decentralized exchanges (DEXes). It aims to address the unique requirements of DEXes for reliability, scalability, and speed. Sei can also be used in the NFT marketplace and in crypto games that have built-in exchanges for users to trade in-game NFTs and tokens. Furthermore, Sei's high scalability and speed make it suitable for modern applications that require high performance. Its security-first approach and user-centric features also make it a suitable platform for building and deploying decentralized applications.

Sei was developed in response to the need for a more reliable, scalable, and fast blockchain for trading. It was built from the ground up to prioritize security, with the aim to have the backing of large institutions. Sei is a Layer 1 blockchain that aims to handle a high volume of transactions with quick finality. It seeks to be trusted by operators, investors, and institutions. Over time, Sei has evolved to offer features such as native frontrunning protection, seamless interoperability, and multiple levels of transaction bundling. It has also committed to being carbon neutral, leveraging proof of stake and other innovations to maintain minimal environmental impact.

Sei (SEI) seeks to facilitate a trading experience by implementing a Twin Turbo consensus mechanism and a transaction parallel processing system. The Twin Turbo consensus mechanism combines two methods: Intelligent Block Propagation and Optimistic Block Processing. Intelligent Block Propagation seeks to expedite the process of disseminating proposed blocks throughout the network, and Optimistic Block Processing is used for faster validation and commitment of proposed blocks. Sei supports parallel transaction execution, which allows multiple transactions to be processed simultaneously, resulting in a user experience with reduced latency. This combination of technologies is used by Sei for parallel transaction processing, with the intention of exploring on-chain financial innovation.

Sei (SEI) strives to mitigate the risk of malicious frontrunning in trading through its unique Frequent Batch Auctions (FBA) system. FBA aggregates all market orders at the end of a block and executes them at the same uniform clearing price. This means that irrespective of the order in which trades occur, during the time of that block (about 500ms), everyone posting trades may receive the same price. This approach seeks to reduce potential gains for MEV bots and intends to provide a platform for users to execute trades with reduced price fluctuations. For instance, if two different buyers appear in the order book, without FBA, the first buyer selects Order A and the next buyer follows Order B. However, in a scenario where FBA is functioning, orders may be executed at an average price since a uniform clearing price is shared within a single block. This system is intended to mitigate the risk of frontrunning by establishing batches that can potentially provide the same price within a single block through its own order matching engine.

Sei's native order-matching engine is a component that seeks to improve the performance of trading applications. This engine is integrated into the Sei blockchain, which is tailored specifically for trading, aiming to provide high throughput and low latency. The engine is part of a centralized or decentralized limit order book (CLOB/DLOB) module that intends to optimize order placement and matching. This implies that Sei-based decentralized applications (dApps) can be built on top of the DLOB, and other Cosmos-based blockchains can utilize DLOB Sei as a shared liquidity hub. The engine's primary advantage is its potential to provide deep liquidity and price-time-priority matching for traders and applications. This feature is designed to facilitate user selection of trade parameters, while aiming to mitigate potential maximum extractable value (MEV) risks. Therefore, Sei's native order-matching engine is designed with the intention of providing an efficient and reliable trading experience.

Sei's native price oracle plays a role in providing consistent and precise asset pricing within the network. It is a part of Sei's Oracle module, which supports asset exchange rate pricing for use by other modules and contracts. Validators within the network are expected and required to participate as an oracle, contributing to consistent and precise pricing for assets. During each voting window, validators provide asset pricing for whitelisted assets. At the end of these windows, the votes are aggregated, and the chain computes a weighted median based on validator voting power to determine the effective exchange rate on a per-asset basis. This process aims to maintain the integrity and freshness of oracle asset pricing, which is treated as a core chain service. Validators who do not participate in the upkeep of oracle asset pricing may face penalties. The native price oracle is a component in maintaining the stability and consistency of the Sei network.

SeiSEI aims to address the scalability challenges faced by exchanges by utilizing its distinct technical features and consensus mechanism. It is constructed as a general-purpose, open-source Layer 1 blockchain, with a design focus on facilitating the seamless transfer of digital assets across various domains. SeiSEI's chain-level optimizations strive to enable decentralized exchanges and trading apps to facilitate a user experience with modern performance and scalability. It seeks to address the Exchange Trilemma, which involves a trade-off between decentralization, scalability, and capital efficiency. SeiSEI's approach includes a fast consensus mechanism, a native order matching engine, and front-running protection. It also employs market-based parallelization, a technique that allows multiple transactions to be processed simultaneously, with the intention of enhancing the platform's scalability. This combination of features is part of SeiSEI's strategy to address the scalability challenges faced by exchanges.

SeiSEI has been primarily bootstrapped by its founder. This means that the company has been built and grown using the founder's personal resources and revenue from the business, rather than relying on external sources. This approach has allowed Sei (SEI) to maintain control over its vision and operations, focusing on addressing specific problems in the market rather than meeting external expectations. The resources have been used to develop Sei's proprietary technology and expand its offerings. The impact of this approach on Sei's development is noticeable. It enables the company to prioritize its mission and values, and to make strategic decisions based on the needs of its customers and the market, rather than external pressures. This approach aims to foster a culture of self-reliance and innovation, as the company strives to find ways to improve and sustain its operations with limited resources.

Sei's is built on the Cosmos SDK and includes an order book as the base layer of the blockchain and Tendermint Core as its consensus mechanism. Sei's blockchain is designed with the intention of providing users with timely information on trades through their decentralized app. It seeks to address the substantial challenge of infrastructure support for rapidly scaling DeFi applications in the blockchain industry. Sei's blockchain uses on-chain order books to match transaction requests at given prices, facilitating the development of DeFi applications that can utilize SeiSEI's built-in central limit order book (CLOB) for transaction processing. SeiSEI's blockchain is built on the Cosmos SDK, which could result in more stability since each blockchain operates independently. Sei's blockchain also implements Intelligent Block Propagation and Optimistic Block Processing to optimize its performance and speed. Sei's blockchain is intended to mitigate the risk of front-running and employs Frequent Batch Auctioning to prevent front-running while facilitating users' participation in transaction processing. SeiSEI's blockchain is a permissioned blockchain, indicating that projects undergo a review process. Sei's blockchain is compatible with CosmWasm smart contracts and can interact with other IBC networks.