> ## Documentation Index
> Fetch the complete documentation index at: https://docs.opersa.company/llms.txt
> Use this file to discover all available pages before exploring further.

# Robinhood Chain

> Where OperSa settles, and why that matters.

OperSa is built on Robinhood Chain. Every trade, position, holder, and referral is a real on-chain event, which means the entire market is verifiable by anyone. Nothing important lives in a private database.

## Why on-chain matters here

<CardGroup cols={2}>
  <Card title="Verifiable, not claimed" icon="circle-check">
    Your position and profit and loss are settled on-chain. Holder lists and trade histories are read from the chain, not typed into a table. What the app shows you, the chain confirms.
  </Card>

  <Card title="Public by default" icon="eye">
    Any holder or trade on a spot market links straight to the block explorer, so you can inspect it yourself. The market is open to audit at all times.
  </Card>
</CardGroup>

## Network details

OperSa currently runs on Robinhood Chain testnet.

| Item     | Value                                                                                                        |
| -------- | ------------------------------------------------------------------------------------------------------------ |
| Network  | Robinhood Chain testnet                                                                                      |
| Chain ID | 46630                                                                                                        |
| RPC      | [https://rpc.testnet.chain.robinhood.com](https://rpc.testnet.chain.robinhood.com)                           |
| Explorer | [https://explorer.testnet.chain.robinhood.com](https://explorer.testnet.chain.robinhood.com)                 |
| Faucet   | [https://faucet.testnet.chain.robinhood.com/add-chain](https://faucet.testnet.chain.robinhood.com/add-chain) |

<Note>
  Because this is testnet, balances use test tokens with no monetary value. The \$OPSA token is not live yet.
</Note>

## How settlement works

<Steps>
  <Step title="You place a trade">
    Your order is a transaction signed by your embedded wallet and submitted to Robinhood Chain.
  </Step>

  <Step title="The contract records your position">
    The exchange contract updates your position and your profit and loss in on-chain units, so your numbers are exact and independently checkable.
  </Step>

  <Step title="The market reflects it">
    Holders and trades update from on-chain state. Your entry shows up in the trade history, linkable to the explorer.
  </Step>
</Steps>

<Card title="Contract addresses" icon="file-contract" href="/technical/contracts">
  The deployed OperSa contracts on Robinhood Chain testnet.
</Card>