IoT systems based on collaborative sensor networks are becoming increasingly common in various industries owing to the increased availability of low-cost sensors. The quality of the data provided by these sensors may be unknown. For these reasons, advanced data processing and sensor network self-calibration methods have become popular research topics. In terms of metrology, the self-calibration methods lack the traceability to the established measurement standards of National Metrology Institutes (NMIs) through an unbroken chain-link of calibration. This problem can be solved by the ongoing digitalization of the metrology infrastructure. We propose a conceptual solution based on Digital Calibration Certificates (DCCs), Digital SI (D-SI), and cryptographic digital identifiers, for validation of data quality and trustworthiness. The data that enable validation and traceability can be used to improve analytics, decision-making, and security in industrial applications. We discuss the applicability and benefits of our solutions in a selection of industrial use cases, where collaborative sensing has already been introduced. We present the remaining challenges in the digitization and standardization processes regarding digital metrology and the future work required to address them.

Internet of Things (IoT) device data enables diverse applications. However, the quality of data are non-standardized and difficult to quantify. While poor quality data may be usable, establishing error bounds supports IoT's use in critical applications. National Metrology Institutes (NMIs) have long tradition in making measurement data trustworthy, and they are now working to digitalize these practices. This paper forwards that agenda by presenting a Distributed Ledger Technology (DLT) based concept to leverage digital metrology for IoT data and devices. Digital Calibration Certificates (DCCs) offer a solution for describing, certifying, authenticating, and securing IoT data quality. With DCCs, measurement device (sensor) calibration information may be included as metadata alongside samples captured by a device. Metadata may include device identification, which serves as proof-of-origin for measurements and samples, and timing data, to ensure its “freshness.” DCCs enhance communicating the quality of captured information among devices, services, and applications, thereby supporting IoT's use in domains with strict error constraints. Our proposed concept securely validates DCC-based (meta)data traceability chain from NMIs and devices to data end-users with cryptographic measures, rendering IoT data trustworthy for critical applications.

The Stream Control Transmission Protocol (SCTP) is a reliable message-based transport protocol developed by the IETF that could replace TCP in some applications. SCTP allows endpoints to have multiple IP addresses for the purposes of fault tolerance. There is on-going work to extend the SCTP multihoming functions to support dynamic addressing and endpoint mobility. This paper explains how the multihoming and mobility features can be exploited for denial-of-service attacks, connection hijacking, and packet flooding. We propose implementation guidelines for SCTP and changes to the mobility extensions that prevent most of the attacks. The same lessons apply to multihomed TCP variants and other transport-layer protocols that incorporate some flavor of dynamic addressing.

Money is a recognised factor in creating sustainable, affluent societies. Yet, the neoclassical orthodoxy that prevails in our economic thinking remains as a contested area, its supporters claiming their results to be objectively true while many heterodox economists claim the whole system to stand on clay feet. Of late, the increased activity around complementary currencies suggest that the fiat money zeitgeist might be giving away to more variety in our monetary system. Rather than emphasizing what money does, as the main-stream economists do, other fields of science allow us to approach money as an integral part of the hierarchies and networks of exchange through which it circulates. This paper suggests that a broad understanding of money and more variety in monetary system have great potentials to further a more equalitarian and sustainable economy. They can drive the extension of society to more inclusive levels and transform people’s economic roles and identities in the process. New technologies, including blockchain and smart ledger technology are able to support decentralized money creation through the use of shared and “open” peer-to-peer rewarding and IOU systems. Alongside of specialists and decision makers’ capabilities, our project most pressingly calls for engaging citizens into the process early on. Multidisciplinary competencies are needed to take relevant action to investigate, envision and foster novel ways for value creation. For this, we are forming the Aalto Observatory on Digital Valuation Systems to gain deeper understandings of sustainable value creation structures enabled by new technology.