In this Proof of Work (PoW) mining simulator, you can test the mining of blocks. Click on “mine” to create your first block. Once the hash puzzle is solved, the block turns green.

Now, you can mine the next block. It takes the hash from the previous block as input and tries to find a nonce that solves the hash puzzle. Again, as soon as the solution is found, the block turns green. You can continue with the other blocks.

If you make any changes to one the blocks, it is mined again. The result is that the hash changes and the link to all following blocks breaks. You can see this because all following blocks turn red.

This proof of work mining simulator/calculator is for education purpose.