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Seeker Genesis Token

Overview​

The Seeker Genesis Token is a unique NFT that represents a verified owner of a Seeker device. It can only be minted once per device and is minted into the primary account in a user's Seed Vault Wallet.

NFT Details​

The Seeker Genesis Token implements Token Extensions (formerly Token-2022).

Transferability​

The Seeker Genesis Token can only be transferred between a user's wallet accounts on a permissioned basis within the Seed Vault Wallet. A transfer occurs when a user changes their primary account in the Seed Vault Wallet.

The mint address of the SGT remains the same when it is transferred.

Anti-Sybil Example: In-App Rewards Claim​

Even with transferability, the Seeker Genesis Token is still useful as an anti-sybil measure.

As an example, imagine an in-app rewards claim that wants to use the Seeker Genesis Token to limit the claim to once per Seeker device.

To implement this, the app should check for 3 properties:

  1. The connected wallet owns a Seeker Genesis Token.
  2. The user proves ownership of the wallet via signing a message.
  3. The Seeker Genesis Token has not been previously used to claim a reward (i.e check that its mint address has not been seen before).

Step 3 is crucial to exclude wallets that have previously claimed the reward on another wallet (and then transferred the SGT to a new wallet).

Token Extensions​

Seeker Genesis Token implements several extensions, notably:

  • Metadata Pointer
  • Token Group Member and Pointer

Key Addresses​

  • Mint Authority: GT2zuHVaZQYZSyQMgJPLzvkmyztfyXg2NJunqFp4p3A4
  • Metadata Address: GT22s89nU4iWFkNXj1Bw6uYhJJWDRPpShHt4Bk8f99Te

View on an Explorer​

Verifying Seeker Genesis Token Ownership​

To verify a wallet owns a Seeker Genesis Token ownership, you can use the searchAssets API.

Here's an example script using Helius RPC with pagination:

async function checkSgtOwnership(walletAddress: string): Promise<boolean> {
  const SGT_METADATA_AUTHORITY = 'GT2zuHVaZQYZSyQMgJPLzvkmyztfyXg2NJunqFp4p3A4';
  const SGT_METADATA_ADDRESS = 'GT22s89nU4iWFkNXj1Bw6uYhJJWDRPpShHt4Bk8f99Te';
  
  let page = 1;
  
  while (true) {
    const response = await fetch(`https://mainnet.helius-rpc.com/?api-key=YOUR_API_KEY`, {
      method: 'POST',
      headers: { 'Content-Type': 'application/json' },
      body: JSON.stringify({
        jsonrpc: '2.0',
        id: 'my-id',
        method: 'searchAssets',
        params: {
          ownerAddress: walletAddress,
          tokenType: 'all',
          limit: 1000,
          page: page
        }
      })
    });

    const data = await response.json();
    const assets = data.result?.items || [];
    
    if (assets.length === 0) break;
    
    for (const asset of assets) {
      const metadataPointer = asset.mint_extensions?.metadata_pointer;
      
      if (metadataPointer && 
          metadataPointer.authority === SGT_METADATA_AUTHORITY &&
          metadataPointer.metadata_address === SGT_METADATA_ADDRESS) {
        return true; // SGT found
      }
    }
    
    page++;
  }
  
  return false; // No SGT found
}