I have obtained bitcoin data from block explorer and created the transaction graph. The graph consists of millions of nodes and edges.
i wrote a query that creates a relationship from source address to destination address and visualized a portion of the network; approx. 4500 nodes along with 50000 edges. What this means is that I omit the nodes depicting the blocks txs belong to, nodes depicting txs etc.
The nodes in the graph illustrate addresses connected by a relationship " sent_money_to "
There are many self-loops. In several instances a node u has n out-links to node w, while the same node u has n self-loops.
By no means I am an expert on the graph properties or protocol of the bitcoin network.
Any possible explanations? Trivial or non-trivial.