8 Decentralized identifiers
Drummond Reed and Markus Sabadello
Decentralized identifiers (DIDs) are the cryptographic counterpart to verifiable credentials (VCs). Together these are the “twin pillars” of SSI standardization. In this chapter, you learn how DIDs evolved from the work started with VCs, how they are related to URLs and URNs, why a new type of cryptographically verifiable identifier is needed for SSI, and how DIDs are being standardized at World Wide Web Consortium (W3C). Your guides are two of the editors of the W3C Decentralized Identifier 1.0 specification: Markus Sabadello, founder and CEO of Danube Tech, and Drummond Reed, chief trust officer at Evernym.
At the most basic level, a decentralized identifier (DID) is simply a ...
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