New komodod -ac parameters for assetchains. If -ac_reward=<satoshis> is
non-zero, the chain will mine normally and start with -ac_reward for
the block reward.
if -ac_end=<endheight> is set, then -ac_reward will be 0 after
endheight is reached
if -ac_halving=<halvingperiod> is set, then every <halvingperiod>
blocks the block reward is reduced according to one of three methods.
1440 (approx a day) is the most frequent halving period
if -ac_decay is not set, then the normal bitcoin halving is done.
if -ac_decay=<numerator> is set to be exactly 100000000, then the
-ac_reward is scaled linearly toward 0, with 0 at endheight.
for all other values of numerator (less than 100000000) the reward is
iteratively reduced by the number of "halving" periods, ie.
numhalvings = (height / -ac_halving);
for (i=0; i<numhalvings; i++)
reward = (reward * -ac_decay) / 100000000;
if -ac_perc=<satoshis> is nonzero and less than equal 100000000 and
-ac_pubkey=<secp_pubkey33> is set to a 33byte hexstr (len 66 starting
with 02 or 03) then there will be a second vout in the coinbase
transaction that is exactly the commission rate indicated by -ac_perc,
with 100000000 being the max of 100%. wallets will need to be
customized to make sure to pay the -ac_perc of transaction size as
txfee. chains with a percentage override can only be mined by the
-ac_pubkey address
bitcoin behavior would be -ac_reward=5000000000 -ac_halving=210000
KMD behavior would be -ac_reward = 300000000 -ac_end=7777777
a more smoothly reducing reward that halves every 210000 blocks would
be:
-ac_reward=5000000000 -ac_halving=10000 -ac_decay=96777000
This release also supports a second slate of hardcoded notaries
- added method SetCheckpointData for CChainParams.
- as we can't check asset it or not in CMainParams() constructor, because command line arguments don't initialized at that time, we will execute SetCheckpointData in chainparams_commandline later.
changes was tested in komodo-qt wallet, but additional tests wouldn't be superfluous.
