Difficulty has been stuck at 5255.042 for many blocks now...
Look:
The timestamps are also jumping back and forth...
The fuzziness is due to the block times jumping forward 2min, back 3min, forward 2.3min, ...
Both the block explorer and CoinChoose say there is currently 2.5TH/s hitting TRC, up from 500+ GH/s earlier today...
(Question here: Seeing as the block timings are spaced very closely, how is the difficulty not skyrocketing?)