Now ... I have my BTCZ ... but i have another problem

I mined very small amount of Bitcoin Gold (BTG) on miningpoolhub and sent this to tradesatoshi ... and it didnt show up.

But on blockchain explorer i see that amount WITH DATE 1 JAN 1970 !!!!  How this is possible ?

You can see it yourself :  https://btgexplorer.net/address/GabZ5pFshSHgU1ofw2FEWd4Yknz9EZiAha