Backend

Signed Order Intake

How the Backend verifies deterministic messages, wallet signatures, Market state, and collateral.

Deterministic message

The Backend verifies lime.signed-limit-order.v1 signatures against the exact deterministic JSON message produced by the frontend serializer.

Rebuild the canonical message with ordered fields and compare it to the submitted message.

Use the wallet signature to confirm the owner authorized this exact order scope.

Read on-chain Market state and accept only Active Markets.

Read on-chain collateral and subtract Backend Reserved Collateral before accepting the order.

A valid order becomes an Open Order with Reserved Collateral. It has not become exposure until it matches and Trade Execution records it.