DappSheriff x Verax

DappSheriff issues NFT attestations on Verax. Once user mints their ERC721 review, DappSheriff attestates the user on Verax.

Contracts:

• Goerli Testnet
  • DAPPSHERIFF NFT: 0xcc8C45bD9b1E1569c139D5511d8f66031f788D30
  • ECDSA_MODULE: 0x96d6750e92028f514D44a63A77A2f09E6Aba1398
  • DappSheriff PORTAL: 0xe2bb4e0f8d3f57dc02485d85e6be529b5c69541f

ECDSA Module

DappSheriff allows all users to mint their reviews, but they need to be attested by DappSheriff. DappSheriff uses ECDSA module to attest the users permit.

To get the signature for the permit, users simply need to get calldata from DappSheriff's client, which will already contain data for the NFT mint and Verax attestation.

Attestation Schema

Verax's SchemaRegistry accepts this parameters:

function createSchema(
    string memory name,
    string memory description,
    string memory context,
    string memory schemaString
)

DappSheriff sends this parameters:

• name - "DappSheriff Review Attestation"
• description - "Proof of user's review on DappSheriff"
• context - "review"
• schemaString - "string dappSheriffTokenId"

Portal

DappSheriff has decided to use the default portal created by Portal Registry

function deployDefaultPortal(
  address[] calldata modules,
  string memory name,
  string memory description,
  bool isRevocable,
  string memory ownerName
)

DappSheriff sends this parameters:

• modules - []
• name - "DappSheriff Portal"
• description - "Portal to issue review attestations"
• isRevocable - false
• ownerName - "dappsheriff.com"