nimbus-eth1/tools/t8n/testdata/9/env.json

{
  "currentCoinbase": "0x2adc25665018aa1fe0e6bc666dac8fc2697ff9ba",
  "currentDifficulty": "0x20000",
  "currentGasTarget": "0x1000000000",
  "currentBaseFee": "0x3B9ACA00",
  "currentNumber": "0x1000000",
  "currentTimestamp": "0x04"
}