I can't find information about CENT.
I understood it is a POW/POS currency with higher interest rates than even TEKcoin. Could someone confirm?
The POS/POW part is correct. Pennies is based on YACoin, just with the decimal places removed. Originally, this was just done as an experiment, but it caught on a bit more than expected.
However TEKcoin does actually have a higher interest rate than Pennies. While the massive stake part was at one time true, it became a major issue and so was fixed at the start of the year. Basically, there was a misplaced decimal place in the code determining stake, and so the money supply was compounding exponentially by orders of magnitude above anything reasonble, until Pennies ran the very real danger of being completely unmanageable. The stake issue was fixed with about 40 trillion coins already minted, and if nothing had been done, there could easily be hundreds of trillions is not more Pennies in existence now. The size of transactions presents a problem for exchanges as well, all the more reason why the stake needed fixing. Now, stake rewards are as follows:
At 9 days*: Original transaction amount * 1.0009 = approximate returned amount.
At 10 days: Original transaction amount * 1.001 = approximate returned amount.
At 11 days: Original transaction amount * 1.0011 = approximate returned amount.
At 12 days: Original transaction amount * 1.0012 = approximate returned amount.
At 13 days: Original transaction amount * 1.0013 = approximate returned amount.
At 14+ days: Original transaction amount * 1.0014 = approximate returned amount.
*Inputs become available for stake after 9 days.
Also, as a consequence of the massive stake, the POW part has sort of disappeared as a significant feature of the currency. The total amount of coins able to be generated by POW mining is 1 billion. When compared to the total number of coins in circulation, this is almost nothing. So, nobody really mines Pennies anymore.