What is Deep Vault good for?
Good for keeping the authenticity of a file..
example use case: you send an important document
take a look this story: Alice sent a document to Bob that contains text "Alice owes 25BTC to Bob" using deepvault.
it has cryptographic signature for authenticity..
After several years Bob(is a Photoshop master) changed the text to "Alice owes 250BTC to Bob" and shows it to Alice - who is now have amnesia and forgot how much she owes Bob, but she keep the cryptographic signature of the original file.
then she check the original file with the file that was shown to her by Bob. She now discovered that Bob has photoshoped the file.
She killed Bob for forging the document and now Alice is in jail.
case solve
never mind the last part.