Patronum

Ethereum RPC proxy that verifies RPC responses against given trusted block hashes. Currently, most of the DAPPs and Wallets interact with Ethereum over RPC. Patronum can be used as a building block to build light clients that retrofit into the existing Ethereum infrastructure. This library mainly takes advantage of the eth_getProof RPC to perform merkle inclusion proofs for RPC call verification.

Start RPC Provider

import { VerifyingProvider, startServer } from 'patronum';

const provider = await VerifyingProvider.create(
  trustlessRPCURL,
  trustedBlockNumber,
  trustedBlockHash,
);
await startServer(provider, PORT);

Use VerifyingProvider

import { VerifyingProvider } from 'patronum';

const provider = await VerifyingProvider.create(
  trustlessRPCURL,
  trustedBlockNumber,
  trustedBlockHash,
);

console.log(await provider.getBalance(address, blockTag));

console.log(await provider.call(tx));

The RPC URL provided to VerifyingProvider should support eth_getProof and eth_createAccessList. Infura doesn't support eth_createAccessList.