P Wallet Pretac Web3 Wallet Buy and sell your addressing related products Retail industry uses blockchain in addressing the challenges of the new normal At the start of the pandemic, retailers faced challenges such as keeping products on shelves, supply chains moving, stores open and employees safe. As the world cautiously steps toward reopening, retail sales are increasing. Now is a decisive moment for the retail industry to use blockchain in addressing all the challenges of the new normal. What if you could earn and keep customer loyalty not because you asked to be trusted, but because you can prove you’ve delivered on your promises? Quality, reliability, authenticity and product safety can be better assured, while supply chain partners can know for certain where products are in seconds. With IBM Blockchain, an always-up-to-date performance history would become the basis for your reputation and everyone else’s in your retail network.

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IPFS Powers the Distributed Web

Blockchain-based Service Network

Decentralized identifiers (DID) has shown great potential for sharing user identities across different domains and services without compromising user privacy. DID is designed to enable the minimum disclosure of the proof from a user's credentials on a need-to-know basis with a contextualized delegation. At first glance, DID appears to be well-suited for this purpose. However, the overall security of DID has not been thoroughly examined. In this paper, we systemically explore key components of DID systems and analyze their possible vulnerabilities when deployed. First, we analyze the data flow between DID system components and analyze possible security threats. Next, we carefully identify potential security threats over seven different DID functional domains, ranging from user wallet to universal resolver. Lastly, we discuss the possible countermeasures against the security threats we identified.

Real estate processing platform

Voting mechanism

Supply chain and logistics monitoring