tendermint/local-chain.json

{
  "validator_sets": [{
    "id":"local-vals",
    "validators": [{
      "id": "local",
      "chains": ["mychain"]
    }]
  }],
  "blockchains": [{
    "id": "mychain",
    "val_set_id": "local-vals",
    "validators": [{
      "config":{
        "validator": {
          "id": "local"
        },
        "rpc_addr": "localhost:46657",
        "index": 0
      }
    }]
  }]
}