The RIF Multisig - Gnosis Summary

Gnosis Safe solution consists of four main modules. It currently supports Ethereum and other EVM networks (Rinkeby, xDai, EWC, Volta), including Rootstock (RSK).

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A) The smart contracts
- The suite of the smart contracts has the following structure:
  - A Gnosis Safe implementation. It implements functionality for:
    - Managing owners⁽¹⁾ and threshold⁽²⁾
    - Submitting signatures or transactions pre-signed off-chain
    - Rejecting transactions
    - Allowing gas payments with tokens (relayed transactions)
    - Enhanced for adding modules ⁽³⁾
  - A proxy factory contract that deploys proxies using Gnosis Safe implementation in two transactions
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  - Repo: https://github.com/gnosis/safe-contracts
  - Deployments: https://github.com/gnosis/safe-deployments/tree/main/src/assets/v1.2.0
  - ⁽¹⁾Owners: accounts enabled to sign and approve/reject multisig transactions
  - ⁽²⁾Threshold: the number of owners that need to sign to approve and send a transaction
  - ⁽³⁾Those functionalities are not included in this project
B) Transaction service
- The transaction service exposes a REST API for multisig (and other features used in the UI). It collects all the multisig information using trace_transaction and trace_blocks. Furthermore, it allows collecting off-chain signatures and retrieving multisig pending transactions.
  
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  - Repo: https://github.com/gnosis/safe-transaction-service

C) The Core SDK

A Javascript SDK that currently implements most of the functionalities required.

interface Safe {
  connect({ providerOrSigner, safeAddress, contractNetworks }: ConnectEthersSafeConfig): void
  getProvider(): Provider
  getSigner(): Signer | undefined
  getAddress(): string
  getMultiSendAddress(): string
  getContractVersion(): Promise<string>
  getNonce(): Promise<number>
  getOwners(): Promise<string[]>
  getThreshold(): Promise<number>
  getChainId(): Promise<number>
  getBalance(): Promise<BigNumber>
  getModules(): Promise<string[]>
  isModuleEnabled(moduleAddress: string): Promise<boolean>
  isOwner(ownerAddress: string): Promise<boolean>
  createTransaction(...safeTransactions: SafeTransactionDataPartial[]): Promise<SafeTransaction>
  createRejectionTransaction(nonce: number): Promise<SafeTransaction>
  getTransactionHash(safeTransaction: SafeTransaction): Promise<string>
  signTransactionHash(hash: string): Promise<SafeSignature>
  signTransaction(safeTransaction: SafeTransaction): Promise<void>
  approveTransactionHash(hash: string): Promise<ContractTransaction>
  getOwnersWhoApprovedTx(txHash: string): Promise<string[]>
  getEnableModuleTx(moduleAddress: string): Promise<SafeTransaction>
  getDisableModuleTx(moduleAddress: string): Promise<SafeTransaction>
  getAddOwnerTx(ownerAddress: string, threshold?: number): Promise<SafeTransaction>
  getRemoveOwnerTx(ownerAddress: string, threshold?: number): Promise<SafeTransaction>
  getSwapOwnerTx(oldOwnerAddress: string, newOwnerAddress: string): Promise<SafeTransaction>
  getChangeThresholdTx(threshold: number): Promise<SafeTransaction>
  executeTransaction(safeTransaction: SafeTransaction): Promise<ContractTransaction>
  }

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Repo: https://github.com/gnosis/safe-core-sdk/tree/main/packages/safe-core-sdk

D) The UI
- Users can log in with an existent Gnosis Safe, or they can create a new one. It allows to view and to send assets, to show the transaction list, and to edit the safe settings properties (owners, threshold)
  
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  - Repo: https://github.com/gnosis/safe-react

The RIF Multisig - Gnosis Summary

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