Security model

A production SmartLC should minimize trusted authority. The Robinhood Chain smart contract should control escrow assets according to explicit state transitions and should reject unauthorized changes to beneficiary, contract, amount, expiry, or settlement rules after funding unless the agreement defines an amendment process.

Smart-contract controls

• Explicit applicant, beneficiary, asset-contract, amount, and resolver checks.
• Checks-effects-interactions ordering and reentrancy protection around asset release.
• Safe ERC-20 transfer and allowance handling.
• Replay-safe lifecycle state transitions.
• Expiry and refund rules that cannot bypass active disputes.
• Separate verifier permissions from settlement authority where possible.
• Events for creation, funding, verification, dispute, settlement, and refund.
• Clear ownership, pause, multisig, or immutability policy if administrative controls are introduced.

Wallet security

Users are responsible for private-key security. The web application should never request seed phrases or private keys. Production deployments should support hardware wallets and multisig controls for treasury-scale applicants and resolvers.

External verification

Offchain conditions introduce trust that a blockchain cannot remove. Shipping, inspection, legal documents, and service delivery may require approved verifiers. SmartLC should make that trust visible and define what a verifier can attest to.

Incident response

Before mainnet launch, publish a security contact, disclosure policy, emergency authority design, communication procedure, and decision criteria for pausing or upgrading the smart contract if the architecture permits it.