Rebound seems to be underway 
I am an academic researcher on cryptocurrencies. Lately, I have found that TTC's blockchain exhibits some unexpected behaviors that I cannot find in the source code. Several non-premined blocks have rewards much higher than stipulated. For example:
Code:
block_reward difficulty timestamp
block_height
1779 18009 7.805143 2014-02-01 18:08:39
1819 18008 6.574982 2014-02-01 20:14:57
1949 18038 7.750942 2014-02-02 03:19:27
2372 18010 2.374759 2014-02-03 02:11:18
66574 12598 0.207160 2014-07-21 08:44:00
66696 11658 0.313181 2014-07-21 14:29:27
block_height
1779 18009 7.805143 2014-02-01 18:08:39
1819 18008 6.574982 2014-02-01 20:14:57
1949 18038 7.750942 2014-02-02 03:19:27
2372 18010 2.374759 2014-02-03 02:11:18
66574 12598 0.207160 2014-07-21 08:44:00
66696 11658 0.313181 2014-07-21 14:29:27
Their neighboring blocks all have rewards 8008 (plus fees), which is expected, according to TTC's source code.
You can find a detailed discussion of the issue here: https://bitcointalk.org/index.php?topic=951827.0
Thank you!