Spherity Blog

In this #SSI101 glossary entry, we unpack Verifiable Credentials—secure, self-contained data capsules that bundle information with identity and context, making them portable, trustworthy, and ready for encryption, verification, and access control across digital systems.

In this crash course, we break down how decentralized identifiers (DIDs) and verifiable credentials (VCs) secure data and preserve privacy by design—without needing to be a math expert—so you can assess the tech yourself and understand its real-world value.

The evolution of retail is also the evolution of identity—this article traces how today’s global supply chains rely on complex serial number systems, explores longstanding challenges like leakage and binding, and shows how decentralized identifiers (DIDs) and digital twins can power the next generation of intelligent, self-verifiable product identities for circular, on-demand commerce.

Identity systems can be very abstract, heady things to grasp intuitively. One good trick for making glossaries more concrete and human-scaled is to avoid defining nouns and put the emphasis on verbs: who does what, and how, in each system?

Where self-sovereign Identity (SSI) starts — This is the first glossary entry from our #SSI101 series.

“Identity” is an important, hotly debated, and nearly undefinable core concept of human life. Outside of a few philosophers, social scientists, and a tiny minority of specialized technologists, however, most people feel uncomfortable making any definitive or authoritative statements about identity.