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Haven't found a clear answer to this, but I have heard that various coins charge a sort of "developer tax". I've looked through a bunch of various crypto's sourcecode, but I haven't found any hints as to how it's implemented, let alone in what portion of the code it would be in. Could someone reveal a little sunlight onto this behavior?
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Some mining programs (designed for use with mining pools) will mine on behalf of the mining software developer for a short time, before switching to the actual user account.
I've only seen this once and I don't even remember which coin it was for, so I don't know how widespread it is.
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I think you are talking about Devcoin.
Which sends out 90% of mined coins to the developers of the coin based on the csv files stored with the client.
http://www.devtome.com/doku.php?id=devcoin
Receiver Files Client Procedure Receiver.h accesses a synchronized list of receivers.
For example, say the devcoin client requests the height 9000 receivers, the height step is 4000 and only the root receiver_0.csv saved. Receiver.h will first look for the receiver_2.csv file. Since it's not there it will step down and look for receiver_1.csv. Still not there so it looks for and finds receiver_0.csv. It then downloads receiver_1.csv by looking at the peers in receiver_0.csv and saves in the data directory. It then downloads receiver_2.csv by looking at the peers in receiver_1.csv and saves in the data directory. Once it has receiver_2.csv, it parses it to get the list of receivers and uses height modulo list length to return the receivers for height 9000.
Receiver also looks ahead, after it is a random portion between 0.75 and roughly 0.95 of the way to the next step so that there is no mass downloading when the block height switches from x999 to x000. To resist ddos attacks and to work even when some web sites are down, it picks the page which the majority of peers have available. The step size of 4000 gives an update roughly each month.
Disbursing the Share The generation share is 90% of the block, which is 90% * 50,000 devcoins = 45,000 devcoins. It is disbursed to the devcoin addresses in the receiver file, in round robin order. In each generation round, for a given block height, the index of the line of addresses is the block height above the start of the round, modulo the number of addresses. The code snippet for that follows below.
I have never heard anything of a developer tax. Perhaps you are thinking of the block reward, which is the award given to the miner/pool who creates the block. – ChrisW – 2014-03-02T04:35:52.760
This is all really just something I've heard from a friend who I've felt had his coin around crypto implementation details,and I'm just playing with the idea more than anything. I wonder how something like that would be implemented anyway, because I could certainly see it be in the interests of devs to sort of "motivate" an ongoing relationship. I imagine this would have to be hard-coded into the block creation implementation, but I wonder if the SIGCHECKS would have to be altered to account for it. – user3022479 – 2014-03-02T06:12:37.443