
1. Project Overview
OISY wallet is an innovative decentralized digital asset wallet incubated by the DFINITY Foundation, aimed at reshaping the DeFi user experience through a fully on-chain architecture.
As the world's first on-chain wallet supporting multi-chain assets (e.g., BTC, ETH, SOL, ICP, etc.), OISY utilizes the Chain Fusion technology of the Internet Computer (ICP) to deeply integrate security, transparency, and multi-chain compatibility, addressing issues such as fragmentation, security vulnerabilities, and operational complexity of traditional wallets.
Its core vision is to become the unified terminal for users entering the multi-chain DeFi world, promoting the paradigm shift of 'Onchain is the New Online.'

2. Core Technology Architecture
2.1 Fully On-Chain Design
Decentralization and Tamper-Proofing: Both front-end and back-end code of OISY are fully deployed on the ICP blockchain, allowing users to access on-chain smart contracts directly through their browsers without downloading clients or browser plugins, thereby avoiding the risks of centralized app store reviews and malware.
Transparent and Verifiable: All code is open-source and its operating state can be publicly audited, ensuring transparency in user asset logic.
2.2 Chain Key Technology and Security Mechanisms
Threshold ECDSA Signature: User private keys are dispersed across ICP nodes through encrypted sharding technology, requiring multi-node collaboration for signing, with private keys never existing in complete form, completely eliminating the risk of single-point leakage.
Web Custody: Abandoning traditional private key management models, utilizing ICP's Chain Key technology to achieve asset custody, allowing users to operate assets through biometric or hardware device (e.g., YubiKey) authentication, reducing the burden of user management.
2.3 Multi-Chain Compatibility
Chain Fusion Technology Support: Through ICP's cross-chain interaction capabilities, OISY natively supports mainstream chain assets like BTC, ETH, SOL, ICP, and plans to expand to more ecosystems without relying on centralized bridging.
WalletConnect Integration: Supports interaction with Web3 services like Uniswap, and will be compatible with the ICP signer standard in the future, further connecting the dApp ecosystem.
2.4 Identity Authentication: Internet Identity
Passwordless and Privacy Protection: Users authenticate anonymously via internet identity, with each dApp assigned a unique pseudonym to avoid cross-application tracking.
Multi-Device Compatibility: Supports login via biometrics, hardware security modules, etc., and allows cross-device synchronized access.
3. Core Functions and User Experience
3.1 Functional Matrix

3.2 User Experience Optimization
Seamless Operation: Smart contracts automatically handle transaction signatures, allowing users to operate without manually constructing transactions, lowering operational thresholds.
Full Platform Coverage: Supports any browser and operating system, achieving seamless switching across devices (mobile, tablet, PC).
4. Competitive Advantage Analysis
4.1 Comparison with Traditional Wallets

4.2 Comparison with Competitors
MetaMask: Relies on browser plugins, local private key storage, requires network configuration for multi-chain, while OISY provides superior security and a unified entry point.
Trust Wallet: Mobile-centric, relies on bridging for cross-chain, whereas OISY covers all platforms and is natively multi-chain.
5. Market Positioning and Ecological Empowerment
Target Users: High-frequency DeFi users, multi-chain asset holders, and tech geeks emphasizing security and privacy.
Ecological Synergy: As a core entry point of the DFINITY ecosystem, OISY deeply integrates with ICP's dApp, DEX (e.g., Sonic), and infrastructure, promoting liquidity growth in the ICP ecosystem.
Industry Trends: Aligning with the trend of multi-chain interconnectivity and integrated on-chain services, filling the market demand gap for decentralized, frictionless wallets.
6. Risks and Challenges
Technical Risks: The complexity of Chain Key technology may conceal undiscovered vulnerabilities, requiring continuous security audits.
Market Acceptance: Users are accustomed to traditional wallet operation modes, resulting in high education costs.
Competitive Pressure: Must contend with rapid feature iterations of existing wallets (e.g., Rainbow, Coinbase Wallet).
7. Development Prospects and Recommendations
Short-Term: Accelerate support for more public chains (e.g., BNB Chain, Avalanche), expand DEX and lending protocol integration.
Mid-Term: Launch institutional-level custody services, explore the combination of on-chain identity and credit systems.
Long-Term: Become a super entry point for Web3, integrating social, DAO governance, and other scenarios to build an on-chain ecological closed loop.

8. Conclusion
OISY wallet redefines the security, convenience, and multi-chain interoperability of digital asset management through a fully on-chain architecture and Chain Fusion technology.
Despite facing challenges of user habit migration and technical maturity, its innovative model and deep synergy with the DFINITY ecosystem position it as a potential core component of the next-generation DeFi infrastructure, suggesting investors pay attention to its user growth, ecological collaboration progress, and technological iteration dynamics.
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