Hi,
I'm planning to develop an android app for Bitcoin remittance. Can someone point me to some resources that I can use as a starting point. I've good theoretical knowledge of Bitcoin protocol and I'm an experienced android developer.

For some conceptual testing purposes, I want to make changes to the Block generation rewarding algorithm in BitcoinJ.
So far I have cloned BitcoinJ in eclipse and have built it successfully. I also have good theoretical understanding of
Bitcoin protocol however, I'm challenged to find out in which class the rewarding algorith is implemented. How can I also
test my changes in Regression test mode. Thank you very much.

I'm new to Bitcoin Development but I want to track the propagation path of all the nodes a given transaction went through starting from the node it was initiated up to the node where it is confirmed and included in a Block. Is there an API supporting this. Thanks.

I thought of this problem and I don’t have clear answer for now. But I was thinking of a mechanism where those who lie are disadvantaged through the rewarding mechanism. For example, if you have powerful machine but you lied. Then you will solve easier puzzle but your reward will be proportionally less. But I’m not sure of the net effect, let me take some time to think.

Is it possible to make the target variable for different miners. I know the target changes every 210,000 blocks (two weeks) but it is the same for every miner. But in order to discourage miners to invest in acquiring powerful machines and reduce power consumption I thought of making the target variable. The powerful the machine the smaller the target and so the more challenging the puzzle becomes. Would this be possible from implementation point of view. What consequences might this have. Thanks for explanations.

The block generation rate of Bitcoin is one block per 10 minutes on average. I learned that 10 minutes was selected as a tradeoff between confirmation time and the amount of work wasted due to chain splits (block forks). Although the argument makes sense to me, the number seems to be randomly selected. Other altcoins are similarly selecting their block generation rate in a random fashion. Is it possible to analyze and find out an optimal block generation time? What parameters and approaches should I consider in order to calculate an optimal block generation time?