Whats the best way to see if I am on the right chain or if I somehow am on the wrong chain?
The best way to see if you are on the right chain is to check one of the explorers.
http://Chainz.cryptoid.info/uno or
http://insight-uno.cryptap.us/, for example.
Check the number associated with the "Block height."
Then, check which block your Uno wallet is on. To do this, open your wallet and go to Console > Information
Get the "current number of blocks." If your wallet agrees with the explorer, you are on the correct chain.
Now, explorers can certainly be on the wrong chain. But from what I am seeing in this case, Uno's explorers are correct and in agreement. They have been compiled for Linux from the code in Github. Most if not all pools, exchanges and services for Uno are run on Linux and have now been compiled from the current source. Your Windows and Mac wallets are off because they have not yet been compiled with the latest changes. We are awaiting the delivery of the new Windows/Mac wallets, which will agree with the block explorers and the exchanges.
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To anyone solo mining on the Windows wallet, please stop and for now use the services of the pools mentioned earlier that are on the correct chain. If you continue solo'ing on the Win wallet, you are wasting your hash.
If you are a pool operator, please check now to be certain you have compiled the 0.10. wallet from Git, and then let me know that your pool has upgraded. I'm keeping a list of pools that are known to be on 0.10.
To anyone wanting to move coins: I recommend not sending coins at this time. If you send them between two Windows wallets, they will arrive on the new chain, and probably not in your other windows wallet. Eventually you can get them back when the updated wallet is available, but why put yourself to the worry. Just hold off sending for now, and backup your wallet.dat (which is always a good idea). If you need to do any transfers, send a dust transaction as a test before sending a quantity. But rule of thumb for today: don't send to or from a Windows/Mac wallet.
I recommend taking your Windows/Mac wallet offline for now.
Trading Uno on Bittrex/Cryptsy/Cryptopia is safe. Just keep your coins there for now if you have a Windows or Mac wallet.