{
  "schemaVersion": "1.0",
  "project": "ZKProofport on Arc",
  "mode": "design-simulation",
  "reviewedAt": "2026-09-07",
  "event": {
    "name": "ETHOnline 2026",
    "url": "https://ethglobal.com/events/ethonline2026/prizes/arc",
    "userRegistrationConfirmed": false,
    "aiJudgesConfirmed": false,
    "continuityEligibilityRequiresConfirmation": true
  },
  "network": {
    "name": "Arc Testnet",
    "chainId": 5042002,
    "caip2": "eip155:5042002",
    "circleWallet": "ARC-TESTNET",
    "appKit": "Arc_Testnet",
    "gatewayDomain": 26,
    "usdc": "0x3600000000000000000000000000000000000000",
    "erc20Decimals": 6,
    "nativeDecimals": 18
  },
  "officialContracts": {
    "identityRegistry": "0x8004A818BFB912233c491871b3d84c89A494BD9e",
    "gatewayWallet": "0x0077777d7EBA4688BDeF3E311b846F25870A19B9",
    "source": "https://docs.arc.io/arc/references/contract-addresses",
    "identitySource": "https://docs.arc.io/arc/tutorials/register-your-first-ai-agent"
  },
  "projectEvidence": {
    "arcAgentId": null,
    "arcRegistrationTransaction": null,
    "arcVerifierAddress": null,
    "arcGateAddress": null,
    "arcDepositTransaction": null,
    "gatewayPaymentAuthorization": null,
    "gatewayBatchTransaction": null,
    "liveProof": null,
    "teeAttestation": null
  },
  "integrations": [
    {
      "name": "Circle Agent Stack + Agent Wallets",
      "status": "proposed",
      "role": "User-authorized EOA wallet B on Arc; decisions from policy, quote and balances",
      "source": "https://github.com/circlefin/agent-stack-starter-kits"
    },
    {
      "name": "ERC-8004",
      "status": "proposed",
      "role": "Arc prover identity; offchain capability resolution",
      "source": "https://docs.arc.io/arc/tutorials/register-your-first-ai-agent"
    },
    {
      "name": "App Kit Unified Balance",
      "status": "proposed",
      "role": "Public prefunded source balance to Wallet B on Arc; compatible funding-wallet signer",
      "source": "https://docs.arc.io/app-kit/quickstarts/unified-balance-deposit-and-spend"
    },
    {
      "name": "Gateway Nanopayments",
      "status": "proposed",
      "role": "EOA x402 proof purchase; accepted then later batched settlement",
      "source": "https://developers.circle.com/gateway/nanopayments/quickstarts/buyer"
    },
    {
      "name": "ZKProofport Noir proof",
      "status": "existing-code-needs-adaptation",
      "role": "Action-bound authorization and private-entropy nullifier required"
    },
    {
      "name": "Atomic Arc gate + vault",
      "status": "not-implemented",
      "role": "Verify proof and challenge, check caller/chain/audience/amount/expiry, consume nonce, transfer USDC"
    }
  ],
  "limitations": [
    "All browser outcomes are simulated; no APIs or transactions are executed.",
    "Current payment/identity/verifier configurations use Ethereum/Base.",
    "TEE implemented but current ordinary-server deployment does not provide host witness confidentiality.",
    "Current public nullifier permits candidate-wallet testing; unlinkability is not established.",
    "Action-binding profile and custom Arc gate require implementation.",
    "Circle Agent Wallet custom spending policies are mainnet-only; Testnet cap is application-enforced.",
    "Current credential proof does not alone establish fresh non-revocation or canonical inclusion.",
    "The 0.001 USDC proof price is illustrative, not benchmarked economics."
  ],
  "flow": [
    {
      "phase": "mandate",
      "title": "This vault requires proof of Coinbase KYC.",
      "location": "OFFCHAIN · AGENT STACK",
      "durationMs": 6000,
      "mode": "simulated",
      "requiredLiveEvidence": null
    },
    {
      "phase": "identity",
      "title": "Find the prover. Verify its Arc identity.",
      "location": "ARC + OFFCHAIN METADATA",
      "durationMs": 5000,
      "mode": "simulated",
      "requiredLiveEvidence": null
    },
    {
      "phase": "fund",
      "title": "Bring USDC to the agent on Arc.",
      "location": "APP KIT → ARC TESTNET",
      "durationMs": 5000,
      "mode": "simulated",
      "requiredLiveEvidence": null
    },
    {
      "phase": "pay",
      "title": "Authorize a nanopayment. Start proving.",
      "location": "OFFCHAIN → LATER ARC BATCH",
      "durationMs": 6000,
      "mode": "simulated",
      "requiredLiveEvidence": null
    },
    {
      "phase": "prove",
      "title": "A private credential. A scoped proof.",
      "location": "OFFCHAIN · PROVER",
      "durationMs": 7000,
      "mode": "simulated",
      "requiredLiveEvidence": null
    },
    {
      "phase": "execute",
      "title": "Verify and deposit in one Arc transaction.",
      "location": "ARC ONCHAIN · USDC GAS",
      "durationMs": 8000,
      "mode": "simulated",
      "requiredLiveEvidence": null
    },
    {
      "phase": "receipt",
      "title": "KYC verified. Deposit complete. Wallet A omitted.",
      "location": "ARC OUTCOME · SIMULATED",
      "durationMs": 5000,
      "mode": "simulated",
      "requiredLiveEvidence": null
    }
  ],
  "scenarios": [
    {
      "id": "valid",
      "name": "Valid authorization",
      "expectedResult": "SIMULATED_DEPOSIT",
      "cryptographicVerification": false
    },
    {
      "id": "budget",
      "name": "Proof fee over budget",
      "expectedResult": "PRICE_CAP_EXCEEDED",
      "cryptographicVerification": false
    },
    {
      "id": "wallet",
      "name": "Wrong execution wallet",
      "expectedResult": "WALLET_MISMATCH",
      "cryptographicVerification": false
    },
    {
      "id": "replay",
      "name": "Replayed authorization",
      "expectedResult": "AUTHORIZATION_USED",
      "cryptographicVerification": false
    },
    {
      "id": "expired",
      "name": "Expired authorization",
      "expectedResult": "AUTHORIZATION_EXPIRED",
      "cryptographicVerification": false
    }
  ],
  "validation": {
    "command": "node test.cjs",
    "scope": "simulation-engine-and-authorization-specification",
    "fullRepositoryTestsRun": false,
    "liveArcTestsRun": false
  },
  "sources": {
    "prizes": "https://ethglobal.com/events/ethonline2026/prizes/arc",
    "starter": "https://github.com/circlefin/agent-stack-starter-kits",
    "wallet": "https://developers.circle.com/agent-stack/agent-wallets",
    "walletChains": "https://developers.circle.com/agent-stack/agent-wallets/supported-blockchains",
    "walletExecute": "https://developers.circle.com/agent-stack/agent-wallets/wallet-operations/execute-contract",
    "policies": "https://developers.circle.com/agent-stack/agent-wallets/wallet-operations/custom-policies",
    "identity": "https://docs.arc.io/arc/tutorials/register-your-first-ai-agent",
    "appkit": "https://docs.arc.io/app-kit/quickstarts/unified-balance-deposit-and-spend",
    "nano": "https://developers.circle.com/gateway/nanopayments",
    "buyer": "https://developers.circle.com/gateway/nanopayments/quickstarts/buyer",
    "seller": "https://developers.circle.com/gateway/nanopayments/quickstarts/seller",
    "batch": "https://developers.circle.com/gateway/nanopayments/concepts/batched-settlement",
    "chains": "https://developers.circle.com/gateway/references/supported-blockchains",
    "contracts": "https://docs.arc.io/arc/references/contract-addresses",
    "evm": "https://docs.arc.io/arc/references/evm-differences",
    "cli": "https://developers.circle.com/agent-stack/agent-nanopayments/quickstart"
  }
}