O3 Swap is a cross-chain aggregation trading protocol created by O3 Labs team.

Realizing one-click exchange of digital assets without perception, optimizing users' trading experience.

Since the emergence of Ethereum network and the explosion of various DeFi protocol innovations, the public chain pattern does not seem to move towards the dominant situation of Ethereum. Subsequently, BSC, Solana, Heco, Near and other public chains have also made amazing achievements. Under the background of common prosperity of multiple chains, The demand and scene of cross-chain transaction begin to grow rapidly in the crypto market. How to conveniently and efficiently connect the asset islands of each public chain and break the asset cross-chain barrier between public chains has become an urgent problem to be solved.

O3 Swap is the first cross-chain aggregation protocol to realize the free trade of native assets between heterogeneous chains. By deploying the mode of "aggregator + asset cross-chain pool" on different public chains and Layer2 networks, O3 Swap provides users with the experience of "one-click" cross-chain asset exchange.

1. The main functional modules of O3 Swap include transaction aggregator and cross-chain transaction pool. 2. O3 Swap uses a four-tier structure to ensure the integrity and symmetry of information in the floating market and provide a safe and effective trading environment for consumers. (1) Networks (network Layer) : The network Layer is the basis of O3 Swap, including public chain Networks such as Ethereum, BSC, Neo, Heco and potential Layer 2 Networks. (2) Market Liquidity: O3 Swap invests in different chain agreements, connects and aggregates the Liquidity of multiple high-quality DEX, and provides recommended price and trading path for users. (3) Settlement Layer: Users connect to the trading pool through O3 Swap and complete Settlement transactions through smart contract based on smart signature authorization. Help users to complete cross-chain asset conversion and settlement through cross-chain protocol and cross-chain pool. (4) Application Layer: encapsulate the corresponding service and smart contract into a unified API and provide it to developers, as well as conduct transactions for O3 Swap users

1. Pledge O3 to obtain the interest allocated by O3 Swap and the transaction discount of Swap. 2. Participate in O3 Swap's community governance, open governance channels such as community proposals and voting, and jointly maintain O3 Swap's community ecology with developers. 3. Provide liquidity to generate LP, which can be used to unlock O3 in frozen state or carry out new mining

The core algorithm of O3 Swap is Ethash, which is a hash algorithm of "memory-hard calculation" and "memory-Easy verification". Ethash can resist ASIC mining machine through the bottleneck of memory access speed, and realize the separation of mining and light client verification by using two-level data set.

1, no permission, anti-censorship: in any environment, anyone can use without access, and do not need to pass any KYC review. 2. Liquidity aggregation: through decentralized funds, users can directly access the liquidity of multiple DEX on the network and obtain the best quality and effective trading price. 3. Cross-chain trading: Build cross-chain trading pools based on mature and potential cross-chain solutions in the market, so that users can realize free trading between multi-chain assets. 4. Community-driven: According to the innovative design of O3 Swap Token issuance and economic model, decentralized governance and community-driven development will be finally realized.

1. O3Hub is composed of cross-chain asset pool and cross-chain protocol based on Poly Network. StableSwap invariants of Curve are used to optimize the performance of the algorithm providing liquidity for stablecoins. The advantage is to provide liquidity providers with very low price slippage and greatly reduce no loss. On the implementation side, traders can simply exchange mainstream assets across the chain; The liquidity provider can deposit single or multiple assets in the chain pool and pledge O3. Compared to the traditional Hub mechanism, this design allows the user to do without asset access, reducing the limitation of user operations. 2. O3 cross-chain polymerization system is responsible for aggregating multiple on-chain liquidity sources to find the best price and trading path for users. Interactions and links are made through O3 HUB cross-chain capital pool. When users initiate exchange requests, the cross-chain aggregation system will return the best exchange path and the best price to complete exchange. 3. O3 Swap ingeniously combines the two components of O3 cross-chain aggregation system and O3 HUB capital pool, and is the first one to connect the liquidity of assets in different chains by establishing cross-chain trading pool. In addition, cross-chain + transactions without users' perception do not need to be converted and recharged in the form of assets, greatly reducing the threshold of user operation and transaction, and truly enabling users to realize one-click transaction of assets on different chains.

The total circulation of O3 is 100,000,000. There are two phases of the coin offering: Phase zero will have a total issuance of 10,000,000 units, including genesis Rewards and community rewards; The total circulation of the first phase is 90,000,000.

O3 Swap is the first cross-chain aggregation protocol to realize free exchange of native assets between heterogeneous chains, which lowers the threshold of user operation and transaction and improves efficiency.

1. Get O3 prize by contributing to the community or participating in early product testing 2. Get O3 prize by participating in trading mining of O3swap 3. Provide liquidity for O3 cross-chain liquidity pool to obtain O3 reward

1Inch is a well-known aggregator of transactions on Ethereum. Curve is a decentralized stablecoin exchange protocol based on Ethereum. The core of O3 Swap is cross-chain aggregation, which is committed to linking the liquidity between different networks, rather than aggregating the liquidity between different protocols in a single chain. (Multi-chain 1inch + "Cross-chain Curve")

Risk of security factors and vulnerability of contract code: On August 10, 2021, because O3swap funds were stored in Poly Network, Poly Network was attacked by hackers, resulting in the theft of O3swap capital pool.

O3 Swap has certain practical value. After all, there is indeed a large demand for cross-chain asset conversion and cross-chain transaction at present, but this demand is largely determined by the whole DeFi market. The more popular THE DeFi market is, the more prosperous the ecology is, the greater the demand will be, and vice versa! If DeFi is excluded, the need for cross-chain conversion is minimal.