{"page":"/blog/identity-graph-architecture","modified":"2026-11-10","license":"https://creativecommons.org/licenses/by/4.0/","columns":["Item","UID2","EUID","RampID","ID5 ID"],"rows":[["Input","Email or phone (UID2)","Email or phone (EUID)","PII and devices matched to people (LiveRamp)","Consented signals linked by machine learning (ID5)"],["Method","Deterministic","Deterministic","Deterministic (company description)","Deterministic and probabilistic (company description)"],["Consent basis","Local rules such as CCPA and CPRA","GDPR and the TCF","Per LiveRamp contracts","Per ID5 contracts and the TCF"],["EID source in Prebid","uidapi.com","euid.eu","liveramp.com","id5-sync.com"],["How it changes","Secret salts rotate across over a million buckets (UID2 glossary)","Same model as UID2","RampIDs can change when PII is added; no old-to-new mapping is provided","n/d"],["Owner on 9 Nov 2026","Open-source framework","Open-source framework","Publicis Groupe","ID5"]],"sourceUrls":[["https://unifiedid.com/docs/intro","https://euid.eu/docs/intro","https://docs.liveramp.com/identity/en/interpreting-rampid,-liveramp-s-people-based-identifier.html","https://id5.io/technology/"],[],[],[],["https://unifiedid.com/docs/ref-info/glossary-uid"],[]]}