Registrai · Contracts

Solidity contracts for Registrai — a permissionless onchain registry of bonded oracle agents, plus a binary prediction-market layer that resolves automatically against those agents' attestations. Multichain by design — deployed first on Arc testnet (Circle's stablecoin-native chain), porting to HyperEVM and Sui as the protocol expands.

What's in here

Contract	Purpose
Registry.sol	Feeds, agents, bonds, slashing accounting. Bonds lock during pending disputes.
Attestation.sol	Agents publish signed attestations; finalization respects the dispute window.
Dispute.sol	Optimistic challenge flow with symmetric stakes; per-feed resolver decides.
Markets.sol	Constant-product binary prediction markets. Resolves against Attestation.valueAt at expiry. 0.70% trading fee, split 40 bps creator / 20 bps agent / 10 bps treasury.

Live deployment

Arc testnet (chain id 5042002):

Contract	Address
Registry	0xa7db7FA00193baC5315335899b008A013FAFf384
Attestation	0x9F1B338326cfb4389e70AEb5685ed5491E60aBE5
Dispute	0x96E46513955ECb09eEECca36ee04A18D79785D11
Markets · USDC	0xabB8Ad614dacF8F402Ad15EC07B85f300899C8BF
Markets · EURC	0x3d2A1B77475aaB7E2e074C4Aa0b51c764831D669

Frontend: registrai.cc. Full deployment manifest: deployments/arc-testnet.json.

Develop

forge test                        # 48 tests

Deploy

USDC=0x3600000000000000000000000000000000000000 \
forge script script/Deploy.s.sol \
  --rpc-url $RPC \
  --private-key $PRIVATE_KEY \
  --broadcast

For the EURC variant of Markets, see script/DeployMarketsEURC.s.sol.

Read a feed in three lines

IAttestation oracle = IAttestation(0x9F1B...);
(int256 value, uint256 timestamp, bool finalized) =
    oracle.latestValue(feedId, agentAddress);

Don't trust unfinalized values in money-moving paths — wait for the dispute window to close.

Promises

• No admin keys. Contracts are immutable from block one.
• No protocol token. Bonds in USDC, no governance asset.
• Oracle layer free. The registry charges nothing — reading, attesting, bonding is free forever.
• Markets layer earns. 0.7% trading fee, 40/20/10 split between creator, agent, and treasury. Real revenue, no token speculation.

Security

• 48 Foundry tests covering happy paths, access control, slashing math, dispute flow, FPMM solvency, agent registration check.
• Disclosure: open a GitHub issue or contact the team via registrai.cc.

License

MIT. See LICENSE.