--- a/doc/hackusama_walk_through.md
+++ b/doc/hackusama_walk_through.md
@@ -149,6 +149,13 @@
 6. Now select your "ZERO BALANCE" address in the drop-down list and repeat searching and adding the collection for this address.
 7. Transfer token back to your main address. Observe that despite the zero balance, the transfer is successful.
 
+### White Lists and Public Mint Permission
+
+We did not complete these features in time by Hackusama deadline, but because they are important for security of the network, we completed them after the deadline ahyway. They can be seen in branch [feature/white_list](https://github.com/usetech-llc/nft_parachain/tree/feature/white_list). Here are the permalinks to essential functions:
+
+[white_lists](https://github.com/usetech-llc/nft_parachain/blob/b7c59f0085ed2bc1922e937adf68ef4174a8ba36/pallets/nft/src/lib.rs#L659)
+[mint_permission](https://github.com/usetech-llc/nft_parachain/blob/b7c59f0085ed2bc1922e937adf68ef4174a8ba36/pallets/nft/src/lib.rs#L373)
+
 ## NFT Wallet
 
 [Project Description](https://github.com/usetech-llc/apps/blob/master/README.md)