genesis.json

{
    "config": {
      "chainId": 12345,
      "homesteadBlock": 0,
      "eip150Block": 0,
      "eip155Block": 0,
      "eip158Block": 0,
      "byzantiumBlock": 0,
      "constantinopleBlock": 0,
      "petersburgBlock": 0,
      "istanbulBlock": 0,
      "muirGlacierBlock": 0,
      "berlinBlock": 0,
      "londonBlock": 0,
      "arrowGlacierBlock": 0,
      "grayGlacierBlock": 0,
      "clique": {
        "period": 5,
        "epoch": 30000
      }
    },
    "difficulty": "1",
    "gasLimit": "800000000",
    "extradata": "0x00000000000000000000000000000000000000000000000000000000000000007df9a875a174b3bc565e6424a0050ebc1b2d1d820000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
    "alloc": {
      "Aab411fD321f113d9966ecf12D184Ab34d6171c1": { "balance": "500000" },
      "CbbeF9f43d2FC93d7d022580fA690CF680772232": { "balance": "500000" }
    }
  }