Concise Identities. Version 02

There is an increased demand of trustworthy claim sets -- a set ofsystem entity characteristics tied to an entity via signatures -- inorder to provide information. Claim sets represented via CBOR WebTokens (CWT) can compose a variety of evidence suitable forconstrained-node networks and to support secure device automation.This document focuses on sets of identifiers and attributes that aretied to a system entity and are typically used to compose identitiesappropriate for Constrained RESTful Environment (CoRE) authenticationneeds.