📄Security Statement & Contract Address

NovaSwap shares the same security features as Uniswap V3. By incorporating Uniswap V3's robust and thoroughly tested secure core code at the smart contract layer, NovaSwap ensures the mitigation of smart contract vulnerabilities and the protection of user funds.

As zkLink Nova utilizes the zkEVM of ZK Stack, we have adopted the successful Uniswap DAO proposal into deploying Uniswap V3. This contract has been audited by ABDK and has been successfully adapted into the zkEVM without affecting the core code and security.

NovaSwap's changes on the basis of the proposal：

NovaSwap has only modified the chain information and some token addresses to make it compatible with the zkLink Nova network:

• https://github.com/NovaSwapFinance/era-uniswap-v3-periphery/commit/da36ee111f08aa49ece6847db3515ac224478edb

• https://github.com/NovaSwapFinance/era-uniswap-v3-periphery/commit/f1e12560525185fe62b4e83ed6ebc08306eb6949

• https://github.com/NovaSwapFinance/era-uniswap-v3-periphery/commit/97c9e1417eb3b49b80fb22bc35df2f9ab3997847

• https://github.com/NovaSwapFinance/era-uniswap-v3-periphery/commit/82325780bdaf7013a8f2d93eef6d6f038f0bdd8d

• https://github.com/NovaSwapFinance/era-uniswap-v3-periphery/commit/11777ab897138f415e7bafe19e9412ac9f6abf56#diff-79c1f71708d98a7d9a1a0c6f978cab8cbd40cdddf14b76da1dec2ed4be7d0567、

zkSync Era's changes on the basis of UniSwap V3:

Uniswap V3 zkSync Era contracts changes

1. v3-periphery/contracts/libraries/PoolAddress.sol:POOL_INIT_CODE_HASH 32. Hardcoded constant POOL_INIT_CODE_HASH was changed due to the different bytecode of compiled contracts on zkSync Era. It was also adapted for the 1.1.1 and 1.3.0 versions

2. v3-periphery/contracts/libraries/PoolAddress.sol:computeAddress 13. The function was changed from the calculation of EVM address derivation to the zkEVM address derivation. It was also adapted for the 1.1.1 and 1.3.0 versions

3. swap-router-contracts/contracts/libraries/UniswapV2Library.sol:pairFor 5. The function was changed from the calculation of EVM address derivation to the zkEVM address derivation. It should not affect anything, as V2 is unsupported on zksync.

4. universal-router/contracts/modules/uniswap/v2/UniswapV2Library.sol:pairForPreSorted 6. The function was changed from the calculation of EVM address derivation to the zkEVM address derivation. It should not affect anything, as V2 is unsupported on zksync.

5. universal-router/contracts/modules/uniswap/v3/V3SwapRouter.sol:computePoolAddress 9. The function was changed from the calculation of EVM address derivation to the zkEVM address derivation.

6. Some import paths in permit2 contracts 10 were changed due to the transition from Foundry to Hardhat. It will not affect the bytecode.

Uniswap V3 zkSync Era deploy script changes

1. All the contracts repositories were forked, the build process was changed for zkSync Era, and some contracts were changed due to different address derivation.

2. zkSync Era doesn’t support runtime library linkage yet, so the script was migrated to the hardhat. To the DEPLOY_NFT_POSITION_DESCRIPTOR_V1_3_0 step was added compilation to link NFTDescriptor library.

3. Added factory dependencies to the deployment process. The script checks that for contracts any factory dependencies were not missed, for libraries, factory dependencies should always be empty.

4. index.ts file logic was wrapped in the function, because now hardhat is the entry point and it calls this function.

5. Types from the ethers were replaced with the types from the zksync-web3.

The contract address of NovaSwap

Contract	UniSwap V3 on Ethereum	NovaSwap on zkLink Nova
UniswapV3Factory	0x1F98431c8aD98523631AE4a59f267346ea31F984	0x9f94c91b178F5bc9fCcA3e5428b09A3d01CE5AC6
Multicall2	0x5BA1e12693Dc8F9c48aAD8770482f4739bEeD696	0x8d050CB63e28a3B72bD9b367C10b9BB217b5514b
ProxyAdmin	0xB753548F6E010e7e680BA186F9Ca1BdAB2E90cf2	0x2427f385288aaA0569d36043Bbe23e022559490c
TickLens	0xbfd8137f7d1516D3ea5cA83523914859ec47F573	0xC0cc61e2B02CAE026Ee413Fd999012Cd29f32Bc9
NFTDescriptor	0x42B24A95702b9986e82d421cC3568932790A48Ec	0xA260ACc7B77190CD1D84B11dAcE8d1592C5748ee
NonfungibleTokenPositionDescriptor	0x91ae842A5Ffd8d12023116943e72A606179294f3	0x1697701BC8200EC2bc6C0b2fBBBf424Ff700dB8D
TransparentUpgradeableProxy	0xEe6A57eC80ea46401049E92587E52f5Ec1c24785	0xCbe7fa7D3f8014B071a114FC8938960667225654
NonfungiblePositionManager	0xC36442b4a4522E871399CD717aBDD847Ab11FE88	0xcd81E4B6D1Ac4C2C3647eA3F91AAd22Af86A4E26
V3Migrator	0xA5644E29708357803b5A882D272c41cC0dF92B34	0xb4650C6d31A88CBd075d50A0f7A96fb7b0e703Ff
QuoterV2	0x61fFE014bA17989E743c5F6cB21bF9697530B21e	0x86Fc6ab84CFc6a506d51FC722D3aDe959599A98A
SwapRouter02	0x68b3465833fb72A70ecDF485E0e4C7bD8665Fc45	0x8777d9Dd3d0Be6cc2A52dBF9dd84485d7Fe48786
Permit2	0x000000000022D473030F116dDEE9F6B43aC78BA3	0xBdA9aAB7a28A3d8515247E205f12E52e9a6d9811
UniversalRouter	0x3fC91A3afd70395Cd496C647d5a6CC9D4B2b7FAD	0x2cF9e0df0aD37Da3E5B658DBCfB56c5f9265024D