Kaspa

Kaspa is a proof-of-work cryptocurrency that abandons the single chain of blocks. When two miners produce blocks at the same moment, conventional networks discard one; Kaspa keeps both and orders them, which is what allows very fast block production without the security loss that normally causes.

GHOSTDAG orders parallel blocks

Rather than choosing the longest chain and orphaning the rest, the protocol arranges all blocks into a directed acyclic graph and applies a rule that produces a single agreed ordering including every block. No honest work is thrown away, which is the reason block intervals can be a fraction of a second without wasting the hash power that produces near-simultaneous blocks.

Why orphan rates limit ordinary proof of work

On a conventional chain, faster blocks mean more blocks are produced before news of the previous one propagates, so more work is orphaned and effective security falls. That is the constraint keeping Bitcoin at ten minutes. Including parallel blocks rather than discarding them removes it — an elegant answer to a well-understood problem.

Proof of work with no premine

Kaspa launched without a premine or allocation to founders and uses a smoothly decreasing emission schedule rather than abrupt halvings. In a market where most launches reserve a substantial share for insiders, a fair-launch proof-of-work distribution is a genuine distinguishing fact.

Payments, not programmability

Kaspa is a settlement and payment network. It does not target smart contracts, and its case rests on fast confirmation with proof-of-work security rather than on hosting applications. Evaluating it against a smart-contract platform is a category error in both directions.

What to weigh

The consensus research is substantive and the distribution is unusually clean. The risks are those of any younger proof-of-work network: a smaller security budget than established chains, and an ecosystem that is small by design and by age.