xrpvanity.js

const ripple = require('ripple-keypairs')

const elitistPart = 'chp'

while (true) {
  const seed = ripple.generateSeed()
  const keypair = ripple.deriveKeypair(seed)
  const address = ripple.deriveAddress(keypair.publicKey)

  if (address.startsWith('r' + elitistPart)) {
    console.log(seed, keypair, address)
    break
  }
}