I look at this from blockr.io It's show as the fund still with 18nffxYf5k3TeT8n2MJt6D1a8VbEyBz8x6 and never sent out. Why it's not same as blockchain.info.
Blockr.io blockexplorer is clearly broken.
If you look at their block data, it is 431 hours behind the current chain.
Blockchain.info is likely reporting accurately.
I noticed that your address has the word "Thoth" in it. Is that a vanity
address that you had made on a website for you, by any chance? Where
did you get that "1Thoth" address?
Basically, your coins are gone unless you also control the address it
immediately went to. Since it moved within seconds of receiving the 3btc,
I assume your address was a compromised vanity address, or your wallet
client itself is a fake version, or there is malware on your computer.
