Abstract: A computer-implemented system is shown for secure transactions between users, based on a network of blockchains, and a computer-implemented method employing such a computer-implemented system, wherein the architecture of the network of blockchains is defined by rules of smart contracts defined by users at each transaction, allowing extreme agility in governance, sovereignty and interoperability and allowing the optimization of information exchange/validation both in speed and consumed resources. The computer-implemented system further enables Trust implementation to achieve self-sovereign identities for objects to remove or reduce human intermediation in data management and organization.

Abstract: The present invention is directed to a computer-implemented system for secure storage and transfer of digital data between users, based on a blockchain-like protocol, and to a computer-implemented method employing said computer system.

Abstract: A showerhead for vacuum deposition of several species, the showerhead being divided into several quarters containing each at least one outlet for the species, each of the quarter defining the wall of an underlying compartment containing at least one species, wherein two adjacent compartments contains different species. A process for vacuum deposition of one or more species onto a substrate, including providing a substrate for thin film growth in a growth chamber, providing two or more species to be effused towards the substrate, effusing the two or more species towards the substrate with line of sight propagation and in high vacuum conditions, and obtaining a thin film with gradients of chemical elements composition, morphology or crystalline phase.

Abstract: A showerhead for vacuum deposition of several species, the showerhead being divided into several quarters containing each at least one outlet for the species, each quarter defining the wall of an underlying compartment containing at least one species, wherein two adjacent compartments contain different species.