As the title states, basically my question is about the blockchain verification. I know whats a block chain and basically understood how mining is working, except once simple thing.
Let's say we have 2 guys, Bob and Adam.
Blockchain:
|1|-|2|-|3|-{4} - Bob Chain
|1|-|2|-|3|-{4} - Adam Chain
Assume both Bob and Adam found a new block, but it will not be verified until someone finds a next block. So my questions is whats is happening in a situation if Adam will find a block |5| first. Will Bob get his reward for finding a block? Or it means if Adam found one block, he has to find the next one which is extremely difficult without a huge network of computational resources in order to verify his previous block |4| and get reward for block 4 of 12.5 bitcoins, because the nodes will only accept the longest blockchain? I hope I clearly illustrated the picture. I've tried to find the answer in different videos and materials but somehow this aspect was put aside. If my assumption is true, it means there is no way how can a single person to earn anything from mining without a huge network ?
First of all, in Bitcoin when someone creates a block, he broadcasta it to the rest ot the network. As you said, if there are two people that create the block at the same time, they will broadcast it. So, you will get two blocks at the same time. Although you save both blocks, you will try to mine one of them. After some time, one of the two branches will be longer, so you will delete the second one.
In Blockchain, a block is considered well when it has 100 blocks (I d0n't know exactly how many) above of it. So, the reward is taken after 100 blocks, not before.