Each holochain network has a configured redundancy. Each entry is copied this many times to different nodes maintaining the DHT. Each entry is sent to the nodes with the hashes most similar to the entry's own hash. This forms a "neighbourhood" for the nodes around that entry. The size of the neighbourhoods is the redundancy of the network. Nodes in a neighborhood "gossip" to each other to track participation in the storage of the entry and to make sure their neighbors haven't gone rogue. If a node drops or cannot produce the entry when requested then it is replaced in the network by the node with the next most similar node ID to the entry hash. (See Immune System)

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