But I have another question myself for a more experienced member: What does 'Value out' means in the explorer? For example I have at block 2287 a value out of 750000 or at block 2283 there is 508,849.36278606 value out. Where do these values come from?
For a block, it's the sum of the value out of its transactions.
Block 2283 has 4 transactions, but since it was generated through Proof Of Stake, the coinbase transaction (the first) is empty, the second is the stake plus fees, the last two others are fund transfers.
It's the pool/miner/wallet that extracted it, if that pool isn't "tagged" in the explorer, it falls under "Unknown".
I've now tagged DedicatedPool, CoinKing & TradeMyBit, so there are only 18% unknown now.
If you happen to know a pool that is mining XAN, let me know, and if there is enough info, I'll tag it, and its blocks will no longer be categorized under "unknown"!