Understand the role of work in blockchain consensus

Crypto.com’s glossary describes proof of work as a consensus mechanism involving miners competing through computation to propose new blocks. Other participants check the resulting block against the network’s rules. The mechanism is associated with Bitcoin and has costs involving equipment, energy and the operation of the network.

When researching a proof of work asset, distinguish the activity of mining from simply buying the asset. Check the specific chain’s rules and avoid assuming every chain uses Bitcoin’s implementation. A block reward is a protocol incentive, not a promised return to an ordinary holder or a guarantee that mining will be profitable. Assess claims about efficiency and security in the context of the actual network, available evidence and the assumptions behind the claim.

Source: Crypto.com educational material. Reviewed 9 November 2026.