Fix foreign chaind detection

apps/block_scout_web/lib/block_scout_web/views/tokens/overview_view.ex

@@ -6,6 +6,8 @@ defmodule BlockScoutWeb.Tokens.OverviewView do
   alias BlockScoutWeb.{CurrencyHelpers, LayoutView}
 
   @tabs ["token_transfers", "token_holders", "read_contract", "inventory"]
+  @etherscan_token_link "https://etherscan.io/token/"
+  @blockscout_base_link "https://blockscout.com/"
 
   def decimals?(%Token{decimals: nil}), do: false
   def decimals?(%Token{decimals: _}), do: true
@@ -71,16 +73,20 @@ defmodule BlockScoutWeb.Tokens.OverviewView do
     base_token_explorer_link <> foreign_token_contract_address_hash_string
   end
 
+  # credo:disable-for-next-line /Complexity/
   defp get_base_token_explorer_link(chain_id) when not is_nil(chain_id) do
     case Decimal.to_integer(chain_id) do
+      181 ->
+        @blockscout_base_link <> "poa/qdai/tokens/"
+
       100 ->
-        "https://blockscout.com/poa/xdai/tokens/"
+        @blockscout_base_link <> "poa/xdai/tokens/"
 
       99 ->
-        "https://blockscout.com/poa/core/tokens/"
+        @blockscout_base_link <> "poa/core/tokens/"
 
       77 ->
-        "https://blockscout.com/poa/sokol/tokens/"
+        @blockscout_base_link <> "poa/sokol/tokens/"
 
       42 ->
         "https://kovan.etherscan.io/token/"
@@ -95,12 +101,12 @@ defmodule BlockScoutWeb.Tokens.OverviewView do
         "https://goerli.etherscan.io/token/"
 
       1 ->
-        "https://etherscan.io/token/"
+        @etherscan_token_link
 
       _ ->
-        "https://etherscan.io/token/"
+        @etherscan_token_link
     end
   end
 
-  defp get_base_token_explorer_link(_), do: "https://etherscan.io/"
+  defp get_base_token_explorer_link(_), do: @etherscan_token_link
 end

apps/explorer/lib/explorer/chain.ex

@@ -3480,7 +3480,7 @@ defmodule Explorer.Chain do
                 |> json_rpc(json_rpc_named_arguments)
 
               "0x" <> foreign_chain_id_abi_encoded_no_prefix = foreign_chain_id_abi_encoded
-              {foreign_chain_id, _} = Integer.parse(foreign_chain_id_abi_encoded_no_prefix)
+              {foreign_chain_id, _} = Integer.parse(foreign_chain_id_abi_encoded_no_prefix, 16)
 
               set_bridged_token_metadata(token_address_hash, %{
                 foreign_chain_id: foreign_chain_id,