P2P Logging and Timestamping for Reconciliation

In this paper, the authors address data reconciliation in Peer-To-Peer (P2P) collaborative applications. They propose P2P-LTR (Logging and Timestamping for Reconciliation) which provides P2P logging and timestamping services for P2P reconciliation over a Distributed Hash Table (DHT). While updating at collaborating peers, updates are timestamped and stored in a highly available P2P log. During reconciliation, these updates are retrieved in total order to enforce eventual consistency. In this paper, they first give an overview of P2P-LTR with its model and its main procedures.