On a Sunday, turning my eyes in detail to the process of Mining a Bitcoin which includes:

1. Blockchain
2. Proof of Work (PoW): the process to earn new bitcoins; the first miner to arrive at the right answer, or closest answer, to a numeric problem.
3. A 64 digit hexadecimal number (a hash): e.g. 0000000000000000057fcc708cf0130d95e27c5819203e9f967ac56e4df598ee
4. A target Hash: metaphorical undisclosed number in the envelope
5. Mining pool:a group of coin miners who combine their computing power and split the mined Bitcoin (rewards)