Blockchains have been around for more than ten years,and since 2015,a plethora of systems have been launched to target more flexible use cases.More recently,several enterprise blockchain systems,such as Consensys Quor...Blockchains have been around for more than ten years,and since 2015,a plethora of systems have been launched to target more flexible use cases.More recently,several enterprise blockchain systems,such as Consensys Quorum and Hyperledger Fabric,have been launched to make blockchain simpler to apply in complex organizational configurations.In this paper,we identify a specific Department of Defense use case,extrapolate requirements,and perform a thorough assessment of the different layers of the blockchain stack to identify the existing state of the art and undertake a gap analysis of the technology for this context.We describe a platform that meets many of these challenges and show how we architected,designed,and implemented a solution for this use case for deployment at NAVAIR.This solution connects transactions from two separate blockchain systems,Consensys Quorum and Hyperledger Fabric,by using a graph-based approach that preserves privacy while enabling full transparency across the military and supplier networks.展开更多
Reproducibility can be considered as one of the basic requirements to ensure that a given research finding is accurate and acceptable.This paper presents a new layered approach that allows scientific researchers to pr...Reproducibility can be considered as one of the basic requirements to ensure that a given research finding is accurate and acceptable.This paper presents a new layered approach that allows scientific researchers to provide a)data to fellow researchers to validate research and b)proofs of research quality to funding agencies,without revealing sensitive details associated with the same.We conclude that by integrating smart contracts,blockchain technology,and self-sovereign identity into an automated system,it is possible to assert the quality of scientific materials and validate the peer review process without the need of a central authority.展开更多
基金funding from a Phase Ⅱ SBIR grant(Contract No.N68335-20-C-0302)for the VIPART project(PO,Dr Manivannan Venkat)to support NAVAIR.
文摘Blockchains have been around for more than ten years,and since 2015,a plethora of systems have been launched to target more flexible use cases.More recently,several enterprise blockchain systems,such as Consensys Quorum and Hyperledger Fabric,have been launched to make blockchain simpler to apply in complex organizational configurations.In this paper,we identify a specific Department of Defense use case,extrapolate requirements,and perform a thorough assessment of the different layers of the blockchain stack to identify the existing state of the art and undertake a gap analysis of the technology for this context.We describe a platform that meets many of these challenges and show how we architected,designed,and implemented a solution for this use case for deployment at NAVAIR.This solution connects transactions from two separate blockchain systems,Consensys Quorum and Hyperledger Fabric,by using a graph-based approach that preserves privacy while enabling full transparency across the military and supplier networks.
文摘Reproducibility can be considered as one of the basic requirements to ensure that a given research finding is accurate and acceptable.This paper presents a new layered approach that allows scientific researchers to provide a)data to fellow researchers to validate research and b)proofs of research quality to funding agencies,without revealing sensitive details associated with the same.We conclude that by integrating smart contracts,blockchain technology,and self-sovereign identity into an automated system,it is possible to assert the quality of scientific materials and validate the peer review process without the need of a central authority.
