Robinhood Chain
Noren's settlement chain is Robinhood Chain (chain id 4663). The settlement asset is USDG and the native gas token is ETH. Nothing is deployed on-chain yet: every contract, token, and endpoint on this page is coming soon, and no addresses are published until they exist.
Design: signed data, verified with ecrecover
Noren's trust records (identity, audit-derived reputation, and bond receipts) are produced off-chain by the daemon and signed. The signing scheme is chosen so that an EVM contract can check them cheaply: a secp256k1 issuer key signs an EIP-712 typed-data digest, and the contract recovers the signer with a single ecrecover and compares it against a trusted-signer set. There is no bridge and no relayer that has to be trusted for correctness; the signature is the proof.
The Rust crates noren-attestation and noren-evm-signer in the repository build and sign these artifacts. The Solidity verifiers live in agent-os/evm/contracts.
What is in the repository
| Contract | Purpose | Status |
|---|---|---|
BondReceiptVerifier | Verifies a Noren-signed EIP-712 bond receipt (token, bond, window, slash split) with ecrecover. Rejects expired receipts, untrusted signers, and malleable signatures. | Source and tests; coming soon on-chain |
NorenReputationRegistry | Accepts a signed reputation update for a subject and stores it; stale updates and out-of-range scores revert. | Source and tests; coming soon on-chain |
SpendGrantEscrow | Bounded agent spend in USDG: per-call ceiling, funded cap, expiry, provider allowlist, and release gated on an attestor's quality verdict. See Settlement. | Source and tests; coming soon on-chain |
RwaTradeGuard, GuardedTradeExecutor | Price-band, notional-cap, and rolling-window guards for agent trades of tokenized assets through an allowlisted router. | Source and tests; coming soon on-chain |
Payments: USDG over x402
Per-call payments use the x402 exact scheme on network eip155:4663. The payer signs an EIP-3009 transferWithAuthorization over USDG; a facilitator submits it and pays gas, so a paying agent needs no ETH and no RPC to sign. See Noren x402. The public facilitator and sellers are coming soon.
The Noren token
The Noren token is deployed on Robinhood Chain at 0xd7ccebb9a014a713879093979c7016db72486e62. Verify it on the explorer and on the official token page. There is no price or market data here, and no address other than this one is ours.
Planned integrations with other EVM ecosystems
Because trust data is signed with standard EVM primitives, it can later be projected into other EVM ecosystems without moving any asset. These are planned, with no deployments today:
- Registering the agent in an ERC-8004 identity registry, if and where one is deployed (the repository contains staging tooling that builds calldata and never signs or submits).
- Projecting reputation as off-chain EAS attestations signed by the same secp256k1 issuer key.
- Name resolution through an ENS-style offchain (CCIP-Read) resolver; an
OffchainResolvercontract and gateway exist as source.
What comes next
Deploy the contracts above to Robinhood Chain, publish addresses and verification instructions, then turn on the daemon-driven receipt flush. Track progress on the roadmap.