[https://www.sciencedirect.com/science/article/pii/S0743731510002716](https://www.sciencedirect.com/science/article/pii/S0743731510002716) - [[RGA]]とも - [[CRDT]]の一種 - [[Operation-based CRDT]] - [[s4vector index]]を使うことでO(1)で挿入可能 - [[Eventual Consistency]]を保証 - [[Strong Eventual Consistency]]だと思う(kekeho)