Do we have a vector clock for each (key, value) object ? to track history of each object individually or its 1 clock per node/instance.
If its per object then that means each node maintains a vector clock for each object, correct ?
Vector clock has node information and its counter [Node, counter]. The Vector clock keeps track history of each object which means that each node maintains a vector clock for each object.
Hope it will help, Happy Learning 
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