However, the PEPP-PT project is a coordination effort that combines centralized and decentralized approaches and is not a single protocol. Decentralized protocols include Decentralized Privacy-Preserving Proximity Tracing (DP-PPT/DP-3T), Temporary Contact Numbers (TCN, formerly Contact Event Numbers, CEN), Privacy Sensitive Protocols, and Mechanisms for Mobile Contact Tracing (PACT), among others .
Hata hivyo, PEPP-PT ni juhudi ya uratibu ambayo ina njia zote za mamlaka moja na mamlaka anuwai, na sio itifaki moja. Itifaki zenye mamlaka anuwai zinajumuisha Utafutaji wa Eneo la Karibu Ambao Faragha Yake Imehifadhiwa yenye Mamlaka Anuwai (DP-PPT/DP-3T), Nambari za Waasiliani wa Muda (TCN, fka Nambari za Waasiliani wa Tukio, CEN), Itifaki za Faragha Nyeti na Mbinu za Kufuatilia Mawasilino ya Simu (PACT) na zingine.