This document is a quite demonstration of how Aegis Multisig Vault supports Harmony (ONE) tokens. The process was completed on testnet for demo purposes only.

<aside> 💡 Overview of Aegis Multisig Vault

</aside>

We, Aegis Custody, are a blockchain-based fintech company with offices in the US, Kong Kong and Taiwan. We can provide custodial services through our TCSP license in Hong Kong and soon with our South Dakota charter in the US. Other than custody and staking services, we also provide various blockchain-based and decentralized services. We support blockchain-based tokens from Ethereum, Tron, EOS, BSC, XLM and SLP. Besides, we also provide custody service of a very wide range of cryptocurrencies other than the recently supported Harmony (ONE).

Our custody solution is performed via our wallet management system - AegisPen, a hardware solution for BTC/ETH; and Aegis Multisig Vault, a warm wallet solution for a wider range of token coverage listed above. The solution we'll be providing to you is Aegis Multisig Vault, the warm wallet solution with high security, MPC private key management, and multi-sig approval chain.

Our wallet management system supports WalletConnect protocol to interact with Dapps. Once that is officially implemented via the Bounty Program, the ONE tokens under our custody could be interacted with Harmony's platform for staking services. We'd like to discuss an in-depth partnership to support the Harmony community by becoming your custodian. We can hold ONE tokens for individuals with large amounts of ONE tokens or for institutional clients within the Harmony community, and perform staking services on behalf of these clients under a custodial structure.

Our wallet management system contains 3 types of wallets, and it's up to the client to decide how they'd like to integrate with our wallets:

• Deposit：This wallet type could generate up to 300,000 virtual addresses per wallet for receiving deposits from different addresses. All collected deposits will be pooled together and sent to designated wallets - could be Vault and/or Withdrawal. When integrated with the client's platform (ex. crypto exchange), each user on the client's platform could be assigned with a permanent deposit virtual address in order for the admin to identify the source of deposits.
• Vault：This wallet type is mostly used for standard crypto custody, but could also be set as the designated wallet for Deposit and treated as a "cold" wallet for storing the majority of funds. This is the most secure wallet type we have, and always requires multi-sig approval for moving funds. However, automatic requests could be set up - for example, if the balance of a certain Withdrawal wallet is lower than a certain amount it could trigger a request of funds from its linked Vault. The request would still need to pass multisig approval to be executed.
• Withdrawal：This wallet type could be seen as a "hot" wallet since it could be controlled directly by API calls. Each withdrawal wallet has its own API secret & token, and the client who has this information would be able to make withdrawal requests via API to withdraw funds. Withdrawal wallets could be set as designated wallets for Deposit if the client wishes to have the collected deposits pooled together for frequent withdrawals.

Our wallet management system contains 2 parts: web-based interface & mobile auth app:

• Web-based interface：This is used for setting and operation. The user needs to log in with email and password to see permission-based interface and make instruction/operation via the interface.
• Mobile auth app：Every operation made via interface (including login) requires verification using the mobile auth app. The app requires either a 4-digit PIN code or biometric authentication to access, and an additional 8-digit PIN code for transaction verification.

User accounts can only be created by Aegis Custody. The created user will receive activation link with instructions via email to complete the setup. Each user account can only be paired with 1 device for the mobile auth app to ensure authenticity.