Seeker Genesis Token

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:

The connected wallet owns a Seeker Genesis Token.
The user proves ownership of the wallet via signing a message.
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

Metadata Address: GT22s89nU4iWFkNXj1Bw6uYhJJWDRPpShHt4Bk8f99Te
Group Address: GT22s89nU4iWFkNXj1Bw6uYhJJWDRPpShHt4Bk8f99Te

View on an Explorer

An individual Seeker Genesis Token and its extensions
Seeker Genesis Token Metadata Account

Verifying Seeker Genesis Token Ownership

Use the @solana-mobile/skr-genesis-token package to check whether a wallet holds a Seeker Genesis Token. It verifies each token by its on-chain group membership and works with any mainnet RPC endpoint.

npm install @solana-mobile/skr-genesis-token @solana/kit

The Anti-Sybil Example above requires recording each SGT’s mint address, so use getSeekerGenesisTokens to get the mints rather than a boolean. A wallet can hold more than one SGT, so keep every mint: if one has already claimed, another may not have. It skips token accounts with a zero balance, which a wallet keeps after transferring its SGT out.

import { getSeekerGenesisTokens } from "@solana-mobile/skr-genesis-token";
import { address, createSolanaRpc } from "@solana/kit";

const rpc = createSolanaRpc(process.env.RPC_URL); // any mainnet RPC endpoint

// Returns the mint address of every SGT the wallet currently holds, or [].
async function getWalletSGTMints(walletAddress: string) {
  const tokens = await getSeekerGenesisTokens(rpc, address(walletAddress));
  return tokens.map((token) => token.mint);
}

For a simple yes/no check, use hasSeekerGenesisToken. To verify a single mint, use isSeekerGenesisToken. See the package README for the full API.

Code samples on this page are subject to the Apache 2.0 license.

Solana Mobile Stack

Software

Onchain

Hardware

NFT Details

Transferability

Anti-Sybil Example: In-App Rewards Claim

Token Extensions

Key Addresses

View on an Explorer

Verifying Seeker Genesis Token Ownership

​NFT Details

​Transferability

​Anti-Sybil Example: In-App Rewards Claim

​Token Extensions

​Key Addresses

​View on an Explorer

​Verifying Seeker Genesis Token Ownership

NFT Details

Transferability

Anti-Sybil Example: In-App Rewards Claim

Token Extensions

Key Addresses

View on an Explorer

Verifying Seeker Genesis Token Ownership