blockchain v0.1.7 Blockchain.Chain
Represents the information about a specific chain. This will either be a current chain (such as homestead), or a test chain (such as ropsten). Different chains have different parameters, such as accounts with an initial balance and when EIPs are implemented.
For compatibility, we’ll use the configuration files from Parity: https://github.com/paritytech/parity/tree/master/ethcore/res/ethereum
Link to this section Summary
Functions
Loads a given blockchain, such as Homestead or Ropsten. This chain is used to set the genesis block and tweak parameters of the Blockchain and EVM
Link to this section Types
t() :: %Blockchain.Chain{accounts: %{optional(EVM.address) => %{balance: EVM.Wei.t, nonce: integer, storage: %{optional(binary) => binary}}}, engine: %{optional(String.t) => %{minimum_difficulty: integer, difficulty_bound_divisor: integer, duration_limit: integer, homestead_transition: integer, eip150_transition: integer, eip160_transition: integer, eip161abc_transition: integer, eip161d_transition: integer, max_code_size: integer}}, genesis: %{difficulty: integer, author: EVM.address, timestamp: integer, parent_hash: EVM.hash, extra_data: binary, gas_limit: EVM.Gas.t, mix_hash: binary, nonce: binary}, name: String.t, nodes: [String.t], params: %{gas_limit_bound_divisor: integer, block_reward: integer, account_start_nonce: integer, maximum_extra_data_size: integer, min_gas_limit: integer, eip155_transition: integer, eip98_transition: integer, eip86_transition: integer}}
Link to this section Functions
Loads a given blockchain, such as Homestead or Ropsten. This chain is used to set the genesis block and tweak parameters of the Blockchain and EVM.
See the /chains directory of this repo for supported
block chains.
Examples
iex> Blockchain.Chain.load_chain(:ropsten).name
"Ropsten"
iex> Blockchain.Chain.load_chain(:ropsten).genesis.difficulty
0x100000