Pet PassRobinhood Chain testnet

ERC-8426 example

Your NFT, on the card you already carry.

ERC-8426 lets a token contract say “this token has a wallet pass” with one view function, passURI. Any wallet or marketplace can then offer Add to Apple Wallet or Save to Google Wallet for it, and the pass stays in step with the chain.

Hatch a petMy passes

How it works, in three steps

  1. Discover

    The client asks the contract supportsInterface(0xef5f1e71), then reads passURI(tokenId). That URI is the only thing the chain asserts about the pass.

  2. Prove

    This issuer runs the gated configuration: the manifest answers 401 proof_required until you sign a short Sign-In with Ethereum challenge scoped to this token and the acquire action. Then it reads the owner on chain, fresh, before answering.

  3. Carry

    The manifest lists where to get the pass on each platform. Its links (feed, water, play) act for the pet through the issuer, bounded on chain, and rotate when the pet changes hands.

What this instance delivers

Real wallet mode: Apple Wallet and Google Wallet delivery is configured, alongside the in-app preview. This is a test network: the pets have no value, the operator pays the gas, and the code is an unaudited example. No wallet? Use a demo wallet: a throwaway key kept in this browser.

ERC-8426 Pet Pass example