How does Kaspa reach 10 blocks per second through Proof-of-Work?

Kaspa achieves 10 blocks per second — one block every 100 milliseconds — entirely through Proof-of-Work consensus, with no validator signatures involved. Proof-of-Work is a system where miners expend real computing energy to add each block; because that work cannot be faked, each confirmation carries physical weight that makes tampering with history extremely costly. The Crescendo hardfork, which went live in May 2025, pushed Kaspa to this pace without abandoning that security model. For a beginner, the key point is that speed and mining-backed security are not a trade-off here — Kaspa pursues both at once.