Happy 1st Birthday, Cosmos Hub!


A year ago today was the world’s first decentralized launch of a proof-of-stake network, the Cosmos Hub. The memorable “go-live date” started on March 13th, 2019 at 23:00 UTC with validators and community members participating from all over the world. The Cosmos Hub mainnet launch was two years in the making and the first phase of a three-phase rollout of the Cosmos Network, aka the “Internet of Blockchains”.

The next two phases of the Cosmos Network were (2) enabling ATOM transfers — completed in April 2019 — and (3) a production-ready Inter-blockchain Communication (IBC) protocol. IBC is the remaining element that we’re still working on. The IBC spec was determined in June 2019 by members of Agoric, All in Bits (dba Tendermint), and the Interchain Foundation teams. A demo and public IBC testnet will be coming soon — stay tuned.

The Cosmos Hub has had an incredibly busy year that includes:

  • Three successful mainnet launches, culminating in Cosmos Hub-3
  • Multiple millions of blocks validated over three mainnets
  • A decentralized community of 125 mainnet validators
  • An average of ~7s per validated block
  • 15 on-chain governance proposals created and voted on
  • 300,000+ ATOMs added a community pool

A grateful thank you to every Cosmonaut who played a part in building, promoting and launching the Cosmos Hub. The community’s dedication and continued support over the past year is unique to the Cosmos project. Let’s spread some cheer by remembering all the hard work and excitement leading up to launch and the celebrations we shared in the weeks following it.

Wishing Cosmos and everyone a happy anniversary, tweet your favorite memory of Cosmos and make a wish — #Cosmosturns1

Here’s a short walk down memory lane with some of the team’s memorable moments from mainnet launch.

In the weeks and days leading up to the Cosmos mainnet launch, the community was preparing and building momentum.

Remember all the testnets? The numerous Gaia testnets helped prepare the community for mainnet launch.

Finally, the moment of launch was near. The team wanted to share the moment and celebrate with the community.

Our live event was hosted by Chjango Armstrong and Jack the Gentlemen with many validators joining in the celebration. The ‘excitement was palpable’ when Cosmos Hub validators were validating blocks just five minutes after genesis.

In the words of Sunny Aggarwal “we have a public blockchain, this is insane.”

Many Cosmonauts will remember the suspenseful “Block 17.” Minutes after going live, the Cosmos Hub was stuck on block 17 when a validator went offline, halting the network because less than 66.67% of staked ATOM were left online. The uncertainty was over when, moments later, the community rallied to bring online some more voting power. However, “Block 17” lived on as the winning costume at the Berlin Cosmos Launch Party.

Finally, there was a full crew on the call and even family members were joining in on the celebration. The live event concluded with a discussion on what people hoped to see happen in the Cosmos ecosystem.

O n March 14th, the Twittersphere was abuzz with excitement about the Cosmos launch.

Then it was time for the global Cosmos community to party! We even had a throw your own party kit (TYOPK) to join in on the Cosmos launch experience.

Jin Kwon was sent on a world tour across many time zones to celebrate at all the Cosmos launch parties happening around the globe.

Thanks for all the memories and for sharing this journey with us! We could not have done it without you! Let’s make the Cosmos ecosystem even better in 2020!

“There’s as many atoms in a single molecule of your DNA as there are stars in the typical galaxy. We are each of us, a little universe.” Neil deGrasse Tyson

To the Cosmos and beyond!

Links from the launch:

Happy 1st Birthday, Cosmos Hub! was originally published in Cosmos Blog on Medium, where people are continuing the conversation by highlighting and responding to this story.