How to check transaction please help

[svrider]

Please help me to find the transaction from Poloniex to Bitrex exchange. The Poloniex status "complete" 83ac3a4e97c4efd28237f8347ec0e973bd6fad21a901f6667332c0f88707415d
The Sia Explorer show me that hash is not in data base. Please help me.
Where I can check the confirmations yet?