GHOSTDAG is Kaspa's live ordering rule for its blockDAG. It lets parallel proof-of-work blocks stay in the graph and gives nodes a shared way to order them.

Is GHOSTDAG the same as DAGKnight?

No. GHOSTDAG is current mainnet behavior. DAGKnight is a later consensus research and upgrade direction.

Does GHOSTDAG give instant finality?

No. GHOSTDAG helps Kaspa include and order parallel blocks quickly, but confirmation confidence is still probabilistic.

Protocol explainer

GHOSTDAG explained.

GHOSTDAG is the live Kaspa rule that turns a graph of parallel proof-of-work blocks into one ordered payment history.

Citable summary: GHOSTDAG is Kaspa's current blockDAG ordering rule; it is not DAGKnight and it does not mean instant finality.

Plain model

Why Kaspa needs it.

Problem

If blocks arrive quickly, honest miners can find blocks at nearly the same time.

Old shape

A single chain has to choose one path. Some honest work can become stale or orphaned.

Kaspa shape

A blockDAG keeps more parallel blocks visible in the record.

Ordering rule

GHOSTDAG gives nodes a shared way to classify and order the graph.

User effect

Transactions can appear quickly while confirmation confidence increases over time.

Boundary

This is fast mined ordering, not proof that every transaction is instantly irreversible.

Confusions

Say it safely.

Question	Answer	Best wording
Is GHOSTDAG live?	Live	GHOSTDAG is Kaspa's live blockDAG ordering rule.
Is it DAGKnight?	No	DAGKnight is a separate future consensus direction.
Does it remove finality risk?	No	Kaspa has fast inclusion and probabilistic confirmation confidence.
Does it mean unlimited TPS?	No	Throughput depends on block capacity, policy, fees, demand, and network conditions.

Source trail

Verify the claim.

Use Kaspa Research for protocol lineage, Rusty Kaspa for implementation, the status page for current labels, and the finality page for payment-confidence wording.

Kaspa Research Rusty Kaspa Confirmations and finality Status