# Digital Identity Digital identity is the set of identifiers, accounts, credentials, attributes, roles, devices, and institutional assertions through which a person or organization is represented in information systems. ## Notebook evidence [[Scanned_20260730-1845]] traces digital identity from domains and administrator roles (PDF pages 5–8), through CAC/ECA/PIV and federated identity (pages 12 and 18–19), into Apple/Google aliases, phone factors, blocks, data permissions, complaints, and recovery (pages 20–33 and 60–62), ending with role-separated addresses under `bryantmcgill.com` (page 68). ## Required distinctions Human identity, account identity, display name, authentication factor, certificate, device, phone number, email alias, and organizational role are related but not interchangeable. A mismatch among them can reflect migration, synchronization, stale data, error, shared administration, or unauthorized access; the mismatch alone does not decide which. ## Relationships [[Identity and Account Continuity]] · [[Public-Key Infrastructure]] · [[Account Recovery]] · [[Data Provenance]] ## Source - [[Scanned_20260730-1845]], especially PDF pages 5–8, 12, 18–33, 60–62, and 68. ## Scanned_20260730-2016 overlay The phrase “Identity Economy” on PDF page 34 of [[Scanned_20260730-2016]] turns digital identity into an explicit economic and custody model. Across pages 2–42, a person is distributed among names, aliases, telephone numbers, devices, social handles, banking and brokerage identities, proofing records, and wallet keys. The notebook manually performs identity lifecycle work—proofing, authentication, recovery, federation, migration, and retirement—without yet separating every control class. See [[Identity Economy]], [[Identity Proofing]], [[Authentication]], [[Authorization]], and [[Identity Federation]].