Kaspa

• Kaspa is a proof-of-work cryptocurrency that uses a block directed acyclic graph rather than a single chain.

• Its GHOSTDAG protocol keeps blocks that would be orphaned in Bitcoin, allowing much faster block rates without sacrificing security.

• KAS is mined; there is no staking or governance token function.

• Fair launch with no pre-mine, no ICO and no founder allocation.

• Emission follows a smooth deflationary schedule that halves gradually rather than in sudden steps.

• Maximum supply is capped.

Pros:

• Fair launch with no allocation to insiders is rare and verifiable on-chain.

• Block rates far exceed Bitcoin's while retaining proof-of-work security assumptions.

• Active independent development community rather than a single corporate sponsor.

Cons:

• No smart contract functionality in its base form, limiting applications.

• Proof-of-work energy use faces the same criticism levelled at Bitcoin.

• Mining has industrialised, concentrating hash rate among specialised operators.

• Exposure to a proof-of-work asset with a genuinely fair distribution.

• GHOSTDAG is a real cryptographic contribution rather than a marketing claim.

• Weigh the absence of smart contracts against chains that have them.

• A block DAG that keeps parallel blocks instead of orphaning them, achieving high block rates under proof-of-work security.

• Bitcoin must keep block times slow because faster blocks orphan more work and weaken security.

• Ordering parallel blocks rather than discarding them removes that constraint.

• Founded by Yonatan Sompolinsky, co-author of the GHOST protocol that influenced Ethereum's early design.

• Development is community-led with no company or foundation controlling the protocol.

• No ICO, pre-mine or founder allocation. All supply has been distributed through mining since November 2021.

• No smart contract layer limits the application ecosystem.

• Hash rate concentration among industrial miners.

• Energy consumption exposes it to the same policy risk as other proof-of-work assets.

• Community-led development means no funded entity guaranteeing continued work.

The GHOSTDAG paper addresses a constraint Bitcoin's design accepts rather than solves: if blocks are produced faster than they propagate, competing blocks are orphaned, the work in them is wasted, and security falls. Bitcoin's answer is to keep block times slow enough that this rarely happens. GHOSTDAG instead accepts that parallel blocks will occur and provides a way to order them into a consistent sequence, so honest work in parallel blocks contributes to security rather than being discarded. The paper's contribution is the ordering rule and its security proof under the same honest-majority assumption Bitcoin uses, which is what allows block rates orders of magnitude higher without weakening the underlying guarantee.