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Using Proof of Humanity off-chain

Off-chain applications like Discord bots, quest platform backends, and many others can benefit from Proof of Humanity(PoH) integration.

To integrate it, redirect your users to the PoH DApp to verify their humanity. Then, you can check their verification status using one of the following methods.

Option #1: GraphQL endpoint(recommended)​

Rarimo indexes the verified users using a subgraph. You can query its GraphQL endpoint to check the verification status like this:

  1. Run the following GraphQL query:

    Endpoint: https://api.thegraph.com/subgraphs/name/volodymyrzolotukhin/sbtidentityverifier-polygon

    Query:

    query info($address: String!) {
      users(where: { senderAddr: $address }) {
        id
      }
    }

    Use this verified address for tests: 0x62019b7b8f7d5b58006c5001eb1ffa95ab191474

  2. Verify that the response looks like this:

    {
        "users": [
            {
                "id": ": "19643409028078272448762374992644569744201332795590556384983511405206634497"
            }
        ]
    }

    Assume the user is verified if the users array is non-empty.

Option #2: NFT indexer​

If you operate an NFT indexer already, you can also use it to check the user verification. Just check that the user owns a PoH soulbound token.

Proof of Humanity SBT​

Network: Polygon Mainnet

Contract Address: 0xaD7De01cb7eaAFf3a419A0a0a3133a964cD90373