as a non-block producer, how do I know I'm uploading a transaction to the true eos blockchain and not an impersonator? What methods exist to verify that? Example: websites use certificates.

1 Answer 1


There is a chain ID for each chain that is unique. You can retrieve this with the get info API/cleos call.

You also enter this if you're say loading a new network into scatter.

cleos --url <API ENDPOINT HERE> get info

This is the main net:

  "server_version": "2fc5d1cb",
  "chain_id": "aca376f206b8fc25a6ed44dbdc66547c36c6c33e3a119ffbeaef943642f0e906",
  "head_block_num": 35934160,
  "last_irreversible_block_num": 35933831,
  "last_irreversible_block_id": "02244e87d51eefbce234da2f8238e8df20aff331bc9c66081e3d7b702bb7f178",
  "head_block_id": "02244fd02601f1067306775c02c4ec4ae8fb796ad375af66cdaa86cc6dcc048d",
  "head_block_time": "2019-01-06T02:06:51.500",
  "head_block_producer": "cochainworld",
  "virtual_block_cpu_limit": 34468896,
  "virtual_block_net_limit": 1048576000,
  "block_cpu_limit": 176723,
  "block_net_limit": 1045864,
  "server_version_string": "mainnet-1.5.0-dirty"
  • so that's a digital signature? Who has the private key to sign?
    – mar233
    Jan 6, 2019 at 4:34
  • 1
    @mar233 chain_id is just a hash value of eosio::genesis_state.
    – conr2d
    Jan 7, 2019 at 6:22

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.