Setra Core

Canonical settlement layer for tokenized equities on Robinhood Chain

---

Overview

Setra is the canonical settlement infrastructure for tokenized equities. It sits beneath trading venues. DEXs, lending protocols, and brokerages integrate through ISettlement and settle through a single core.

What ERC-4337 is to accounts, EigenLayer to restaking, USDC to dollar settlement — Setra is to equity settlement.

Architecture

  DEX          Lending       Brokerage
   |              |              |
   +--------------+--------------+
                  |
          ISettlement Interface
                  |
    +-------------+-------------+
    |             |             |
 DVP Engine  Netting Engine  Corporate Actions
    |             |             |
    +-------------+-------------+
                  |
          Asset Registry + sEquity Tokens + Proof of Reserves

Contracts

Contract	Description
DVPEngine	Atomic delivery-versus-payment settlement
NettingEngine	Epoch-based net settlement
SEquity	ERC-20 + transfer restrictions (ERC-3643 lite)
SEquityFactory	Deploy new sEquity tokens
AssetRegistry	Canonical registry of tokenized securities
ProofOfReserves	Merkle-based reserve attestations
CorporateActions	Dividends, splits, mergers
SetraRoles	Role-based access control

Quick Start

git clone https://github.com/puntertrade/setra-core.git
cd setra-core
forge install
forge build
forge test

Integration

import {ISettlement} from "@setra/core/interfaces/ISettlement.sol";
import {Intent} from "@setra/core/libraries/Intent.sol";

contract MyDEX {
    ISettlement public immutable setra;

    function executeTrade(
        Intent.DVPIntent calldata intent,
        bytes calldata buyerSig,
        bytes calldata sellerSig
    ) external returns (bytes32) {
        return setra.settle(intent, buyerSig, sellerSig);
    }
}

License

BUSL-1.1