// The message start string is designed to be unlikely to occur in normal data.
// The characters are rarely used upper ascii, not valid as UTF-8, and produce
// a large 4-byte int at any alignment.
// Public testnet message start
static unsigned char pchMessageStartTestOld[4] = { 0xfc, 0xc1, 0xb7, 0xdc };
static unsigned char pchMessageStartTestNew[4] = { 0xce, 0xe2, 0xca, 0xff };
static unsigned int nMessageStartTestSwitchTime = 1398869551+(60*5);

// Darkcoin message start (switch from Litecoin's)
static unsigned char pchMessageStartLitecoin[4] = { 0xfb, 0xc0, 0xb6, 0xdb };
static unsigned char pchMessageStartDarkcoin[4] = { 0xbf, 0x0c, 0x6b, 0xbd };
static unsigned int nMessageStartSwitchTime = 1400094580; //Wed, 14 May 2014 19:09:40 GMT

void GetMessageStart(unsigned char pchMessageStart[], bool fPersistent)
{
    if (fTestNet)
        memcpy(pchMessageStart, (fPersistent || GetAdjustedTime() > nMessageStartTestSwitchTime)? pchMessageStartTestNew : pchMessageStartTestOld, sizeof(pchMessageStartTestNew));
    else
        memcpy(pchMessageStart, (fPersistent || GetAdjustedTime() > nMessageStartSwitchTime)? pchMessageStartDarkcoin : pchMessageStartLitecoin, sizeof(pchMessageStartDarkcoin));
}