That's your best share, meaning your best difficulty. So you rolled the dice and rolled a 400M when your previous best was only 20M. So that's pretty good. If you roll 115 trillion, you get a block reward.

Ahh I see..

Aren't you suppose to mine a hash under a certain number? Shouldn't it be the lowest the better?

In terms of raw block hash, yes. More leading zeros = lower value = more difficult.

I was going to clarify because I generalized that really poorly, but this site has done it for me. Basically a big difficulty means a low target and we show some parts in hex and some in decimal just to make it spicy and confuse everyone. 😂 This is where the Bitaxe really shines. Plebs asking questions and learning the system.

Difficulty | What is the Difficulty in Bitcoin?

A simple explanation of what difficulty is in Bitcoin, and how it

I need all the info I can get. Learning everyday!

Yes, the surprising thing to me is that an ASIC can go through all the Nonce possibilities of a block and still don't find an adequate hash under the threshold value. So around 4 billion (10^9) nonce possibilities attempts and a normal bitaxe can do 1,2 Terahashes (10^12) per second. Having to change other parameters within the block itself and trying all the nonces again. That information change my hole perspective on the blockchain construction.

Yep. Every possible nonce is nothing for these things. ASICs and other modern hardware make big numbers meaningless. This is something people should strongly consider when they make up passwords.