One of them is DeepVault that allows Onion members to store file validation credentials (hashes of files) within the blockchain. DeepVault brings file authenticity verification to the blockchain for the first time. Any information stored in the blockchain cannot be changed. The cost of using this feature is 1 onion for each document(hashes) you upload to the blockchain. The fee primarily goes to a fund address for future enhancement and support of this feature.
There is an Infographic of how to use DeepVault made by the moderator DogLover, you can check it here.
https://deeponion.org/community/threads/doglovers-new-infographic-how-to-use-deepvault.5339/#post-79891
Another feature is DeepSend, this feature isnt finished yet but it is about to come soon(this year). We dont know much at the moment, what we know can be found in the official site "DeepSend will allow users to send and receive untraceable payments. DeepSend will use a multi-signature method to hide the transaction trace. What is important here is that we are adopting a tried and tested technology that is trusted by existing users. We will leverage this service and develop an enhanced version of it providing further anonymity, speed, and trust".
