SmartB enables Impact Traceability for projects that contribute to a more sustainable economy. With Impact Traceability, SmartB provides evidence that an action has been recorded and reported once and only once. No double Spending! Impact Traceability also provides monitoring over the evolution of Proof of impact, including its validity and its value. Proofs of impact registered on the SmartB Network are fully auditable and non modifiable. This re-enforces financial reporting and enable performance comparison. They can also be exchanged and traded!