Latest articles

LatestOct 14, 2026

One rung at a time. How to build on Kaspa, from your first payment to a contract that remembers

Contracts that remember now run on Kaspa. Since the Toccata upgrade, a coin can hold a contract's state and refuse any spend that breaks its rules, and this guide shows you how to build one. It starts with a plain payment and ends with a counter that refused every cheat kaspa.news threw at it. Every command and every line of code in between ran on a real Kaspa node before it went in, and where something failed the first time, the guide tells you why. The guide is for anyone who wants to build on Kaspa, whether you've never written a contract or you've shipped apps on Ethereum or Solana.

Oct 9, 2026

By the book. The operator can't steal the tic-tac-toe pot, but it can still get stuck

The people who run Maksim Biriukov's tic-tac-toe game on Kaspa cannot take the pot. His new book on vprogs, written around that game, is just as clear about what they can still do. They can stop, and if they all stop, money still inside the game waits until somebody starts it again.

Oct 8, 2026

Kaspa is programmable high-frequency proof of work, and its token rulebook enters final review

"Programmable high-frequency proof of work" is how Michael Sutton described Kaspa on 8 October, replying to a post that called it programmable proof of work. High frequency, he added, is "all the rage so to speak". It makes Kaspa "a continuous composition of highly responsive mini programs" (X post). @Michael Sutton Mini programs can only work together if they follow the same rules.

Oct 6, 2026

Kaspa covenants explained. Why a copied safe is harmless and a copied notebook is a forgery

On 5 October, Michael Sutton asked Kaspa users a question instead of giving them an answer (X post). He wrote that there are basically two kinds of covenants. Some are about the KAS they...

Oct 3, 2026

Kasplex releases its KRC-20 fix. Sutton proposes a way to check a covenant's code

Kasplex released the fixed version of its KRC-20 indexer on 3 October. The indexer is the software that reads KRC-20 token transfers from Kaspa transactions and keeps track of who owns wh...

Oct 1, 2026

Argent import changes, KOB feedback and wallet pagination

Ross Ku is building KOB, an order book using contracts on Kaspa, and has brought its practical difficulties back to the people building the tools. On 29 September, he shared notes about m...

Sep 30, 2026

Vitalik's world computer. A blueprint Kaspa readers will recognise

Vitalik Buterin has a new name for where Ethereum is heading. In an essay published on 27 September, he describes a "cryptographic world computer" and argues that the network Ethereum is...

Sep 28, 2026

Kaspa payments in pure JavaScript. The wallet toolkit Zelcore opened up to every builder

Zelcore, a wallet that holds KAS next to many other coins, has released kaspa-core as open source. It is a library that builds and signs Kaspa transactions in TypeScript, a widely used fo...

Sep 26, 2026

Small game, big deal. The tic-tac-toe match where the referee can't cheat

When you play an online game for money, the company running it decides who won. The same company also holds the money until it pays out. You have to trust that it counts fairly and pays t...

Sep 24, 2026

A token name your wallet could check for itself

When a wallet shows a token, its name and symbol make it easier to recognise. But the wallet also needs a way to check where those details came from. Manyfest has proposed a way to connec...

Sep 23, 2026

Kaspa v2.1.0 breaks up large node sync transfers

Rusty Kaspa v2.1.0, released on 22 September, changes how a new or returning node catches up with the network. Instead of sending some of the largest sync data packages as single messages...

Sep 21, 2026

Inside the KRC-20 theft. What we know so far

An attacker took ZEAL and NACHO tokens from a bridge on 20 September without stealing its private keys. According to the ZealousSwap incident report, the failure was in the Kasplex indexe...