Computational Power

Computational power, often measured in hash rate in proof-of-work systems, is the total capacity of the network to perform mathematical calculations to secure the ledger. In the early days of blockchain, this was the primary metric for network security, as it represented the physical energy and hardware cost required to attack the system.

As networks have evolved, the reliance on raw computational power has been supplemented or replaced by stake-based mechanisms. However, the concept remains relevant in understanding the security of hybrid models or legacy proof-of-work chains.

It is the raw force that prevents double-spending and ensures the integrity of the consensus process. The higher the computational power, the more expensive it becomes for an attacker to overwhelm the network.