@type hash() :: String.t()

@type pub_key() :: String.t() | nil

@type sig() :: String.t()

@type sig_type() :: :unsigned_signature | :signed_signature

@type t() :: %Kadena.Types.SignatureWithHash{
  hash: hash(),
  pub_key: pub_key(),
  sig: sig(),
  type: sig_type()
}

@type validation() :: {:ok, String.t()} | {:error, Keyword.t()}