Search results for " smart contract"
showing 9 items of 9 documents
A Smart Contract Based Recommender System
2019
Nowadays information available on the World Wide Web has reached unprecedented growth and it makes difficult for users to find the most relevant for them. In order to alleviate such issue, Recommender Systems (RSs) have been proposed to collect opinions and preferences about a set of items, process such preferences and build a personalized information access. While the most part of current RSs exploit centralized architecture to provide the service, in this manuscript we propose an alternative approach for building a general purpose RSs that provides to users with more transparent and decentralized rating strategy. Indeed, the proposed framework is built on top of a Distributed Ledger techn…
AgriChain: Blockchain Syntactic and Semantic Validation for Reducing Information Asymmetry In Agri-Food
2022
Information asymmetry affects the actors of all the segments of the agri-food supply chain and can arise many problems in the market along the production chain. Transactions of agri-food products are asymmetric because suppliers and buyers have different levels of knowledge on the provenance, value, quality, and freshness of food. Collusive relations among the agri-food chain actors, especially between controllers companies and controlled ones, can cause market failures as they influence customers’ purchase decisions and severe health accidents when food safety is compromised. This paper proposes using blockchain technology to combat information asymmetry and collusive relations. In additio…
Challenges and Opportunities using MultiChain for Real Estate
2019
The real estate market involves multiple untrusted actors with contrasting objectives. We propose REchain, a blockchain-based platform for real estate, which provides benefits to all actors in terms of transparency, trust, immutability, and traceability. REchain architecture handles real estate data through well-defined workflows that leverage the MultiChain platform. REchain changes the real estate market enabling direct transactions without intermediaries, and providing new mechanisms for negotiating the purchase conditions. This paper refutes the misleading idea of using blockchains for solving generic problems as blockchain platforms have peculiar features that make them suitable for sp…
Distributed Demand-Response Certification using Blockchain Technology
2021
SMART CONTRACTS E TECNOLOGIE BASATE SU REGISTRI DISTRIBUITI NELLA L. 12/2019
2021
The essay addresses the issue of the regulation of smart contracts and technologies based on distributed ledgers, as regulated by the national law 12/2019. It highlights some critical issues related to the formulation and understanding of these concepts, definitely relevant for scholars but, at the same time, very complex in their understanding, giving the multidisciplinary implications they are related to. Finally, the essay addresses the two different approaches in the matter, the European and the national one, and underlines the necessity of a more uniform perspective, also in consideration of the missing guidelines by the Agenzia per l’Italia digitale (AgID).
Demand Response Service Certification and Customer Baseline Evaluation Using Blockchain Technology
2020
The use of Distributed Ledger Technologies such as Blockchain for certifying Demand Response services allows for the creation of a distributed system in which customers can communicate with the system operator to provide their flexibility, in a secure, transparent and traceable way. Blockchain technology also supports incentive mechanisms for users taking part in the service through the generation of utility tokens to recognize the user's contribution. This paper presents the experimental test of a novel methodology for Demand Response programs implementation by using the Blockchain technology. The latter is employed for defining a distributed Demand Response service and a new system for it…
DLT, BLOCKCHAIN E SMART CONTRACT
2020
La tecnologia blockchain nasce nel 2008 con l’annuncio di BitCoin [1], una delle più diffuse criptovalute. Il ruolo fondamentale della blockchain nell’ambito delle criptovalute è quello di garantire l’impossibilità di spendere due volte lo stesso valore in transazioni successive, fattispecie che viene indicata nel mondo anglosassone come double spending. Il problema del double spending è di difficile soluzione quando l’informazione di un valore è espressa in formato digitale, il quale ben si presta alla riproduzione di copie identiche consentendo quindi di spendere quel valore più volte. Il problema è superabile in presenza di una entità centralizzata fidata, quale ad esempio una banca, ma …
Blockchain jako platforma logistyki publicznej
2020
Zarządzający sektorem publicznym coraz częściej poszukują nowych możliwości oferowania mieszkańcom większego pakietu świadczeń, przyczyniających się do podniesienia jakości życia. Jedną z ich jest logistyka publiczna, która posiada potencjał integracji i koordynacji działań w zakresie realizacji zadań publicznych. Jednak obawy sektora publicznego względem prywatnego wykonawstwa świadczeń ciągle jeszcze są stosunkowo duże. Wynika to nie tylko z braku zaufania do zewnętrznego wykonawstwa zadań, ale także z braku transparentności relacji między sektorem publicznym i prywatnym, znajdującym uzasadnienie w teorii agencji. Sposobem na poprawę relacji i optymalizację oferty w mieście może stanowić …
La nullità del contratto del diritto civile italiano tra frammentazione, recupero e nuove tecnologie
2022
Il presente contributo si sofferma sull’attuale atteggiarsi della nullità del contratto nel diritto civile italiano alla luce dell’evoluzione legislativa e giurisprudenziale che ha interessato l’istituto, analizzando ipotesi particolari di nullità, la possibilità del recupero dell’atto e i profili rimediali degli smart contracts.