Before revision:  however, despite the huge activity characterising the BLN, the bitcoins distribution is very unequal: the average Gini coefficient of the node strengths is approximately 0.88 causing  10\% (50\%) the of the nodes to hold the 80\% (99\%) of the bitcoins at stake in the BLN (on average, across the entire period)  .
After revision:  however, despite the huge activity characterising the BLN, the bitcoins distribution is very unequal: the average Gini coefficient of the node strengths is approximately 0.88 causing 10\% (50\%) the of the nodes to hold the 80\% (99\%) of the bitcoins at stake in the BLN (on average, across the entire period) . This concentration brings up the question of which minimalist network model allows us to explain the network topological structure .