What was Kaspa's GPU-mining era?

Kaspa's GPU-mining era ran from 2021 to 2023, the period before ASIC hardware entered the market. Kaspa's emission schedule front-loaded distribution during this window, meaning the largest share of new KAS entered circulation while consumer graphics cards were still the dominant mining tool. ASICs (Application-Specific Integrated Circuits) are purpose-built mining machines that require significant capital investment and are typically accessible only to industrial operators; because most KAS was mined before they arrived, the early supply was distributed competitively across thousands of GPU miners worldwide. For a beginner, this timeline is relevant context when evaluating whether proof-of-work mining necessarily leads to centralized control over a coin's supply.