OpNode Smart Contracts

To power its decentralized GPU rental marketplace, OpNode employs a modular suite of smart contracts deployed on a high-performance, EVM-compatible blockchain (e.g. Ethereum L2 or sidechain).

These contracts automate every aspect of the ecosystem — from task coordination and payment flows to reputation tracking and governance, ensuring a fully trustless, verifiable, and incentive-aligned marketplace between GPU Providers, Clients, and the OpNode Network.

📜 Key Smart Contracts & Their Roles

1. TaskManager.sol

Purpose: Orchestrates the creation, bidding, assignment, and completion of GPU tasks.

Core Functions:

• submitTask(taskMetadata, budget, duration) → Client submits a job request

• placeBid(taskId, providerId, price) → Providers bid to offer compute services

• assignProvider(taskId, providerId) → Assigns provider based on trust score + pricing

• verifyCompletion(taskId, resultHash) → Oracles or verifiers confirm task output

• finalizePayment(taskId) → Releases payment from escrow upon successful validation

2. StakingVault.sol

Purpose: Manages staking of $OPNODE tokens by both Providers and Clients to enforce commitment, reduce spam, and align incentives.

Key Features:

• Provider Staking: Boosts reputation + increases job visibility

• Client Staking: Locks budget commitment before task creation

• Slashing Mechanism: Penalizes failed jobs or malicious activity

3. PaymentEscrow.sol

Purpose: Handles secure, conditional, and time-locked payments between participants.

Workflow:

1. $OPNODE tokens are locked at task submission

2. Funds are released only after verified completion

3. In case of disputes, funds remain locked pending DAO arbitration

4. ReputationRegistry.sol

Purpose: Maintains on-chain reputation scores for all participants based on performance metrics and feedback.

Mechanics:

• Points for timely, verified task delivery

• Penalties for failed or inaccurate outputs

• DAO Oversight: Disputed scores can be reviewed transparently via governance

5. GovernanceDAO.sol

Purpose: Enables community-led decision-making on protocol upgrades, fee structures, staking rules, and slashing parameters.

Integration:

• Off-chain voting via Snapshot or Tally

• On-chain execution logic for binding proposals

🔐 Security & Design Considerations

• Modular Architecture: Each contract is upgradeable via proxy patterns (e.g. OpenZeppelin UUPS)

• Oracle Integration: Ensures external verification (e.g. hash validation, latency checks)

• ZKP / MPC Layer (Future): For privacy-preserving verification of sensitive AI workloads

• Failsafes: Watchdog contracts + emergency circuit breakers safeguard high-value tasks

🚀 Outcome — A Fully Trustless Compute Market

OpNode’s smart contract infrastructure establishes a self-sustaining, censorship-resistant, and transparent marketplace where:

• Anyone can contribute idle GPU power

• All workflows are automated — no intermediaries

• Payments, rewards, and penalties are enforced on-chain

A truly trustless compute economy, governed by code, verified by the network, and owned by its community.

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