What makes DOC unique is that the collateral is in a Smart Contract inside the blockchan. Yes, that means you don't need to trust in a third party controlling the collateral.
Perfect for daily transactions
With third party non-custodial wallets you can instantly send and receive DOC with no protocol fees.
Not your keys, not your bitcoins, remember?
Forget about giving up your private keys to a third party, DOC tokens are securely stored in your own wallet.