verifyOnChain

Description

The verifyOnChain static method verifies an on-chain ZPass proof by checking the transaction on the blockchain.

Parameters

• options (VerifyOnChainOptions): An object containing:

  • transactionId (string): The ID of the transaction to verify

  • url (string, optional): Custom API endpoint URL (defaults to "https://api.explorer.provable.com/v1")

Returns

Returns a Promise that resolves to an object containing:

• hasExecution (boolean): Whether the transaction contains an execution, only true if the transaction has a valid execution finalized on-chain (meaning the transaction proof is valid).

• outputs (Output[]): Array of transaction outputs

Example

const result = await ZPass.verifyOnChain({
    transactionId: "at1xyz...",
    url: "http://localhost:3030"
});