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The latest posts about all things Polkadot, major news, ecosystem announcements, engineering updates, and more.

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Kusama

Kusama Upgrade Bulletin (1032-1037)

Details Runtime version: 1037 Supported natively by Polkadot v0.7.17 Polkadot Git commit hash: f570356 Substrate Git commit hash: 860b79b Council motion: #85

Kusama

Kusama’s First Adventure

A little chaos ensued on the Kusama network, Polkadot’s canary-net. Here’s a quick summary of the cause and solution.

Polkadot

Polkadot 2019: Year in review

I started the last year-end round-up with some statistics, and it seems fitting to continue the trend and report some numbers from this year. In total, the Polkadot project, including Substrate, Grandpa, Cumulus and a few bits of support code, has over three hundred thousand lines of code!

Upgrade Bulletin

Kusama Upgrade Bulletin (1031)

Kusama is about to get a new logic core; here’s the details.

Polkadot

Goodbye 2019, Hello 2020

To close out the year, we asked colleagues across the Polkadot Launch Team to reflect on their work in 2019 and discuss what part of their work they’re most looking forward to in 2020. We’re excited to share their answers (some serious and some light-hearted!) with you below.

Consensus

Polkadot Consensus Part 4: Security

So far, we have discussed how BABE creates blockchain candidates and GRANDPA finalizes them. We know that we need more than two-thirds of validators to properly follow the protocol. But how many validators are there? How are they chosen? Why should they follow the rules?

Consensus

Polkadot Consensus Part 3: BABE

Blind Assignment for Blockchain Extension (BABE) is a block production engine that was inspired by Ouroboros Praos, another proof-of-stake protocol. It can be used on its own because it provides probabilistic finality, or it can be coupled with a finality gadget like GRANDPA.

Consensus

Polkadot Consensus Part 2: GRANDPA

In the introduction to this series, I outlined that a consensus algorithm helps a network of computers answer three questions. GRANDPA addresses the second.

Consensus

Polkadot Consensus Part 1: Introduction

This series will be a discussion about security and consensus in Polkadot. In part 1, we will define some terms before getting into the details of how Polkadot creates and secures blocks.

Upgrade Bulletin

Kusama Upgrade Bulletin (1030)

Kusama is about to get a new logic core; here’s the details.

Polkadot

Have a TEE with Polkadot

Hello from the SubstraTEE team at Supercomputing Systems AG! In this post we’d like to introduce key concepts of trusted off-chain computing. We’ll show what you can do with our tool, SubstraTEE, today and what our vision is for future applications.

Kusama

Polkadot v0.7.0 and Kusama CC-3

After a little chaos, Kusama is ready for the next chapter: CC-3 and at long last the governance handover.