In Vortex we created fully non-custodial architecture, where only you have access to assets. To achieve this we created deterministic scheme to create proxy wallets.
To generate wallets you can use #calculate-address on Curra API, and verify that this address belongs to your Ownership ID with #how-to-calculate-address-to-verify, so assets from these wallets can be transferred only to your Ombibus wallets, whitelisted in Rules smart contract, ensuring security of your assets.
Every address is generated from unique salt (can be considered an unique identifier) and addresses remain the same across different EVM chains if their salts are equal. This means you can create the same addresses across multiple EVM blockchains.
How to calculate and verify address? (Advanced)
Addresses are fully deterministic and non-custodial. Gas Pump address is used as seed. After Ownership NFT is minted, addresses become immutable (this happens when first deposit is forwarded to Omnibus wallet) and only the NFT holder can change the Rule smart contract
Address calculation can defer on different platform / programming languages, but general algorithm is the following:
// abi is predictProxyAddress(uint256), proxy address is upgradable proxy of the Rule smart contractproxyAddress = curraContract.predictProxyAddress(ownershipId)
Calculate forwarder implementation address which is going to be used to generate clones, aka proxy wallets
forwarderImplInitcode = "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"
constforwarderImplementationAddress=getCreate2Address( ownershipNFTAddress,// deployer ownershipId,// salt forwarderImplInitcode,// initcode);
import { Blockchain } from"@curra/sdk";// just new addresses// NOTICE: returns two identical addresses created in two different EVM blockchainsconstaddresses=awaitcurra.createAddresses({ blockchains: [Blockchain.ETHEREUM,Blockchain.SMART_CHAIN],});// new address with additional fieldsconst [address] =awaitcurra.createAddresses({ blockchains: [Blockchain.ETHEREUM], uniqueId:"I'm unique",// optional unique id meta:"my user id?",// custom data can be linked to the address, will be included in incomes webhooks});