# Tech Overview & Resources

## Overview

Three systems make up the Arbitrum STIP rewards program: 1. Stats; 2. Points; and 3. Rewards.

***tl;dr: stats => points => rewards***

## Stats Subgraph

Gains Network has published a subgraph to track stats & points from on-chain trading events. Both the data and code are public:

***Arbitrum Subgraph*****:** <https://thegraph.com/hosted-service/subgraph/gainsnetwork-org/gtrade-stats-arbitrum>

***GitHub*****:** <https://github.com/GainsNetwork-org/gtrade-stats-subgraph/tree/main/packages/stats-subgraph>

## Graph Client

Gains Network has published a client library to NPM to both interact with raw stats & points, as well as access all rewards data. Rewards are not tracked on the subgraph and instead are computed in real-time through the use of client-side queries. Both the client library and code are public:

***NPM Library*****:** <https://www.npmjs.com/package/@gainsnetwork/graph-client>

***GitHub*****:** <https://github.com/GainsNetwork-org/gtrade-stats-subgraph/tree/main/packages/graph-client>

## Claims Contract

Gains Network has deployed a contract for claiming $ARB rewards. The contract is verified on Arbiscan.&#x20;

***Contract:*** <https://arbiscan.io/address/0x6ac331B603373D0006D72d3a3159B4C35e1006e8#code>

The contract stores a Merkle root and IPFS CID per epoch. The root is used to distribute rewards, and the CID is for data transparency, allowing the community to verify the rewards data independently.

## Weekly Job

Each week a job runs that:

1\. Computes rewards using the graph-client

2\. Generates a Merkle tree&#x20;

3\. Publishes tree to IPFS&#x20;

4\. Submits root & CID to contract

This job is not open source but its output can be fully verified.

## Verification

Each module of the system can be independently verified.

* Trading stats -- code & index can be compared against blockchain events independently&#x20;
* Trading points -- conversion from stats to points can be compared against blockchain events independently&#x20;
* Trading rewards -- graph-client allows anyone to compute rewards for any epoch at any time. This can be compared against the CID and Merkle root on-chain.


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