const ethers = require("ethers")

const pk =
 "0x0471c746523d16e93d4738f882d9b0beebf66c68caa0f895db15686b57b878cfc7b3e09813ba94f1bbfaa91a06566d3d18bbf69d10bcc947325bbcd6fea97ed692"
const ad = "0xcD3edF915387E2555A829567cE0dBbC919834B82"

getPubKey = async () => {
 const infuraProvider = new ethers.providers.JsonRpcProvider(
  "https://ropsten.infura.io/v3/<projectID>"
 )
 const tx = await infuraProvider.getTransaction(
  "0x07035a057bdddc9c0e1c07c32b341f6082f9d6be2dc39452753587c2e69fbf96"
 )
 const expandedSig = {
  r: tx.r,
  s: tx.s,
  v: tx.v
 }
 const signature = ethers.utils.joinSignature(expandedSig)
 const txData = {
  gasPrice: tx.gasPrice,
  gasLimit: tx.gasLimit,
  value: tx.value,
  nonce: tx.nonce,
  data: tx.data,
  chainId: tx.chainId,
  to: tx.to
 }
 const rsTx = await ethers.utils.resolveProperties(txData)
 const raw = ethers.utils.serializeTransaction(rsTx) // returns RLP encoded tx
 const msgHash = ethers.utils.keccak256(raw) // as specified by ECDSA
 const msgBytes = ethers.utils.arrayify(msgHash) // create binary hash
 const recoveredPubKey = ethers.utils.recoverPublicKey(msgBytes, signature)
 const recoveredAddress = ethers.utils.recoverAddress(msgBytes, signature)
 console.log(recoveredAddress)
 console.log(recoveredPubKey)
 console.log("Correct public key:", recoveredPubKey === pk)
 console.log("Correct address:", recoveredAddress === ad)
}

getPubKey()