Six side-by-side questions on ownership, verification, and cost separate a straightforward BTC purchase from a cloud mining contract in this decision guide: <a href="https://docs.google.com/document/d/1VR_UGZTkuXNJW_c_mE76aYdso1_VC1s80uVnPEAzuRU/edit?usp=sharing">cloud mining or buying btc decision guide</a>.