The audit was performed on all smart contracts found the DataWalletCrowdsale core repository (https://github.com/DataWallet/crowdsale), the contracts are found in the directory: contracts. The commit hash this audit was performed upon is: bc65beba45faf8c6bfc8065d6228c8ec26d73da4
The contract TokenVesting.sol was ignored, this is due to the fact that it is from the already audited Open Zeppelin code base.
The contracts written by the DataWallet contracts are based on contracts previously audited by ZK Labs and written by the SingularityNet team.