The 'Black Box' for Smart Cities and Smart Buildings. The HAB Platform offers a blockchain-based notarization solution to securely register sensitive data from building IoT device information systems. Using the blockchain as a trust third party to register IoT device sensitive data will create a more secure world. By 2030 there will be over 50 billion IoT devices operating in Smart Cities and Smart Buildings, 80% of which will be processing data related to security such as intrusion, fire and flood sensors. Registering all datasets produced by those devices on the HAB Platform reduces investigation time and assist in settling claims more quickly. Ultimately data recorded in the HAB Platform become oracles for smart contracts providing more trust and efficiency. Released in Q4 2019, the HAB Platform will reach massive usage and will be used by big firms from major sectors such as facility management, infrastructure, local government, insurance, security services, energy and supplies, etc. Several Fortune 500 leading multinationals have already committed to use our solution including VINCI and Duval Group.