Contracts and networks

Current deployment

Item	Value
Network	Monad Testnet
Chain ID	`10143`
Protocol	`0x1Fa5e94e44DB2101664C0a24dBf1e52912af3eca`
SDUSD token	`0xb6279237003eD710bB4ccE6fbd126e07eD4D8E23`
Token decimals	`6`
Local development chain	Anvil, `31337`

Inspect the protocol on Monadvision and the checked deployment manifest. The sources have exact creation/runtime verification recorded through Sourcify. Source verification is not a security audit.

Core link and purchase signatures

function createNode(
    uint256 campaignId,
    uint256 parentNodeId,
    bytes32 metadataHash
) external returns (uint256 nodeId);

function purchase(
    uint256 campaignId,
    uint256 nodeId,
    bytes32 orderKey
) external returns (uint256 saleId);

The client generates orderKey for a logical purchase. Direct purchases use nodeId = 0. Use the generated ABI for the complete interface, return values, mutability, events, and errors; do not reconstruct calldata from a prose summary. The contract also supports policy registration, campaign funding and lifecycle actions, refunds, finalization, distributor reward claims, merchant proceeds claims, and unused-budget withdrawals.

Settlement invariants

Merchant reward funding and buyer payments are accounted separately.
Pending sales preserve the accepted policy and recipients.
A sale is refunded before unlock or finalized at/after unlock; terminal outcomes cannot overlap.
Beneficiaries pull their own claimable balances.
Unused-budget withdrawal cannot spend pending or claimable obligations.
Future policy versions require at least 24 hours’ notice and at most one upcoming version.
Direct sales do not reserve distributor commission.

Prototype limits

The current deployment bounds storage and claim work with 128 campaigns, 256 nodes per campaign, and 100 sales per campaign. Policies support 1–5 paid levels. A wallet can create one node and make one purchase per campaign in this prototype. Raising these bounds requires gas and capacity review, not just a frontend setting change. The SDUSD token is freely mintable and non-redeemable. Deployment tooling accepts Anvil and Monad Testnet; this is not a mainnet settlement release.

Build and test

From the Spoke repository:

pnpm contracts:build
pnpm contracts:test
pnpm abi

The contract suite includes unit, fuzz, security, and stateful invariant checks. For gas measurements, run forge test --gas-report inside packages/contracts. See source and deployment scripts and recorded testnet proof.

Understand the system

Build an integration

Operate and verify

Contracts and networks

Current deployment

Core link and purchase signatures

Settlement invariants

Prototype limits

Build and test

​Current deployment

​Core link and purchase signatures

​Settlement invariants

​Prototype limits

​Build and test

Current deployment

Core link and purchase signatures

Settlement invariants

Prototype limits

Build and test