Teaser of the company
BlockTac is a factory of trust: BlockTac fights fake consumer products and data with our certificates and single-use digital seals registered with Blockchain technology, designed for brand protection and consumer engagement. And with our Blockchain-of-things devices, that communicate directly with IoT sensors, encrypt the data, and store it in a public Blockchain. The information now becomes trusted and traceable, impossible to change, truly linked to its source.

BlockTac tested and validated the following blockchain-based solution in the scope of BlockStart:
Blockchain of Things Devices
Our devices are autonomous Single Board Controllers (SBC) that collect information directly from IoT sensors or machines, encrypt the data, and store it in a public Blockchain. The information now becomes trusted and traceable, impossible to change, truly linked to its source. Privacy is fully protected, and potential scammers are immediately identified. We name these edge computers “Blockchain-of-Things” devices. This approach makes it impossible for third parties to amend or impersonate the real producers of the data, therefore protecting the training of AI systems, and reducing energy consumption. Our competitive advantage is unique and based on the high computing power, low size, and cost of the SBCs, with full compatibility and functionalities.
To further increase the security of our IoT devices, we have implemented a decentralized Key Management System (KMS) also based on Blockchain technology. The goal is to store key sensitive data in a decentralized and encrypted manner outside the device.
Our software may be used by third-party IoT platforms or SBC developers and is easily deployed through the use of Docker and Kubernetes.
This solution will protect IoT platforms and AI systems against data poisoning from cyberattacks. It may be applied in many industries: Automotive, Energy, Healthcare, Smart manufacturing, Smart Retail, Smart Buildings, Smart Homes, and Smart Cities.
Technical development during Prototype stage
During the development of Blockchain of Things Devices, the following technical developments have taken place:
Business development during Prototype stage
During the development of Blockchain of Things Devices, the following business developments have taken place:
Pilot stage implementation
Meet the Team
Total funding received by HASHED BLOCKTAC S.L. under BlockStart: €20,000 (€1,000 for Ideation Kick-off, €15,000 for Prototype stage and €4,000 for Pilot stage)













