💙🧡 + ? = 🔜

We’re extremely happy to announce that Offchain Labs is acquiring Prysmatic Labs, the team behind Ethereum's leading consensus client!

This will bring Prysmatic Labs underneath the umbrella of Offchain Labs - a merge of two layers, if you will! 🤝

https://offchain.medium.com/the-merge-2-0-offchain-labs-acquires-prysmatic-labs-the-leading-ethereum-consensus-client-team-9eab169c5fb6

The Arbitrum Hackathon begins tomorrow! 🎉

Limited spots are left, shoot us a DM on Twitter if you’re interested in hacking! 🛠️

https://twitter.com/arbitrum/status/1579904342450405376?s=20&t=6qOZrq3JPcN_6Nh6RC1DVQ

The first Arbitrum Hackathon in Bogota, Colombia has officially come to a close!🎊🛠️

Congratulations to all the talented developers who came by and hacked vigorously through those 2 days!

Take a sneak peak at the winning hacks below. 👇

https://arbitrum.notion.site/Arbitrum-Hackathon-2022-Recap-5dd81a3d72cf40a3bc2771152f2a4158

Huge shout out to all of our partners that contributed and provided bounties for the developers! 💙🧡

Chainlink Labs🔗
Dopex💎
GMX🫐
Hop Protocol🐇
Lido Finance💧
Livepeer▶️
Quick Node📍
Synapse Protocol🟣
Treasure DAO✨
Uniswap Foundation🦄
Unlock Protocol🔓
Vesta Finance🦺

🎉THE NEW ARBITRUM NOVA BLOCK EXPLORER IS NOW LIVE, COURTESY OF ETHERSCAN!🎉 @everyone

Combing through your tx history after gaming or after socializing in your favorite Reddit community just got a whole lot easier! 🎮🫂

🧡nova.arbiscan.io🧡

Hey Arbinauts!

Arbitrum Autumn has been going strong and as we crest into November we wanted to share some progress we’ve made towards decentralization. 🧵

https://offchain.medium.com/39f093768c42

Validator nodes secure the Arbitrum One chain by posting assertions to the state of the chain, and challenging any fraudulent assertions made by other validators. 🖥️

So in anticipation of permissionless validation, we are expanding the validator set..

Today we’re excited to announce an expanded validator set!

The broadened group of organizations securing the Arbitrum One chain now include:

ConsenSys 🌀
Ethereum Foundation 💜
L2beat ❤️
Mycelium 🍄
Offchain Labs (us)
P2P Validator ✔️
QuickNode 📍
Distributed Ledgers Research Centre (DLRC) at Institute for the Future (IFF) 🔴
Unit 410 🧮

The new Arbitrum validators represent a variety of organizations and different communities so that many users can have comfort in a diverse set of validators securing the chain! 🌐↔️🌎

We look forward to continuing to share more around our plans for validation soon!

Including some exciting validator protocol updates and fully permissionless validation. 👀
This was all made possible by the upgrades we shipped in September that reduced performance costs for validator nodes by more than 90%! ⬇️

This heavily reduced the compute costs associated with running validator nodes by making the act of block validation incredibly performant. 💪

This was a crucial upgrade necessary to enabling decentralization in the long term.

Allowing more people to cheaply and easily operate validator nodes that secure rollup chains is a core tenet of mass participation and sustainable decentralization. 💻🌎

Decentralization is a long process, and while we're super excited about today's update, we’re even more excited to keep making progress towards further decentralization.

Stay tuned across our channels so you can be informed on our upcoming developments! 😉

As always, we’re hiring!

So if you want to be a part of the team that’s building out the future of decentralized scaling solutions visit our careers page below!

We can't stress how thankful we are to all of you, our fellow Arbinauts! 💙🧡

https://jobs.lever.co/offchainlabs

Happy December Arbinauts! 💙🧡❄️

For daily updates of projects building on Arbitrum, follow our official ecosystem account: https://twitter.com/arbitrumcore

Not sure which projects are building on Arbitrum? Visit the portals below 👇

Arbitrum One💙: https://portal.arbitrum.one/
Arbitrum Nova🧡: https://portal-nova.arbitrum.io/

https://twitter.com/arbitrum/status/1603495057188945920?s=20&t=5DIIt7tTIUi75HgEu5WLmg

Let’s give a warm #Arbinaut welcome to our new APAC community manager, Shin Wei Chew! 💙🧡💙🧡💙🧡

https://twitter.com/0xchewieee?s=21&t=AyuqhcQ2GI0FC8qhNW9oPg

🧑‍🍳 Attn Devs, another FYI on a smart contract upgrade that we’ll be pushing later today. No action is necessary at this time, and a quick summary is in the thread below 🧵👇

https://twitter.com/arbitrumdevs/status/1603201557817761793?s=46&t=GISN7U47bdKYG38diXGlWA

Check out our first post in a tech-based series we’re calling “The Block Explorer”! 🧑‍🔬

Today we dive into the delay attack problem, and discuss how it was handled in various versions of the Arbitrum rollup protocol, courtesy of our own Ed Felten!👇

https://offchain.medium.com/434f9d05a07a

L2’22 is coming to an end frens.

Needless to say you, the community have been a huge part of our immense growth. So take a peek at the thread below for a recap on this past year! 💙🧡🎉

https://twitter.com/arbitrum/status/1608941687702974464?s=46&t=oDaOdmYhx9EeuKKD3uVYng

It’s been an incredible year of ecosystem growth📈💙🧡

We wish for another successful and exciting year for the entire space of builders & communities!

https://twitter.com/arbitrum/status/1609651814852354048?s=46&t=0y7poanzu-q3MzfyV7b6eQ

Hi Arbitrum fam 👋
We have a new Nitro release! 🚀 With this, Nitro nodes now support RPC queries with the "safe" and "finalized" block numbers. This release also includes various bug fixes and improvements. While this release isn't tied to a consensus upgrade, please upgrade when possible. 🛸

🎉 This new version 2.0.10 is meant to enable our protocols and developers to have a clear understanding on the state of block finality in Nitro, similar to Ethereum.

Release notes here: https://github.com/OffchainLabs/nitro/releases/tag/v2.0.10
Docker Hub: https://hub.docker.com/layers/offchainlabs/nitro-node/v2.0.10-73224e3/images/sha256-e132ff6837f96a36b14975e8227d462260c5e1fbfaafaed8ba69433b6cb290df?context=explore

For more information about release changes see:
https://github.com/OffchainLabs/nitro/releases.

🧡🎮Gamer Alert!🎮💙

We're very excited to announce that Arbitrum Nova will be fully integrated on the Elixir Game Launcher

This is huge news for all of the Web3 Gaming & Arbitrum communities out there. You can find more info in their blog post 👇🧡💙

https://blog.elixir.app/arbitrum-elixir-integration/

https://twitter.com/arbitrum/status/1617645753387847684?s=20

https://elixir.app/

🥳 Attn Devs:

Stylus is on its way!💙🧡

Join us for the unveiling of Stylus, Arbitrum's next-gen programming environment deploying later this year—and learn why we say it’s “EVM+.”

https://offchain.medium.com/hello-stylus-6b18fecc3a22

Announcement highlights🧵👇

https://twitter.com/arbitrum/status/1622974926331453441?s=20&t=91kzQZNTtwieNi6dfFzI9g

Wen? Now. 💙 🧡

https://twitter.com/arbitrum/status/1636352104913666050?s=20

https://www.youtube.com/watch?v=Gt0xgCCb6TE

As the week comes to an end, we are excited to introduce The Weekly Arbinaut. 🗞💙🧡

In our 1st edition, we highlight product developments, ecosystem milestones, and welcome exciting projects launching on Arbitrum this week!

Let's dive in!👇
https://twitter.com/arbitrum/status/1652070341370363906?s=46&t=ee4Bi3rldJHL5R308MPN4Q

✨Product Highlights:

We recently opened our ecosystem job board page! If you’re building on Arbitrum and are hiring for your team, add your company to the Arbitrum Ecosystem Job board below!👇
https://jobs.arbitrum.io/jobs

✨Ecosystem Milestones:

Yesterday both Arbitrum One (1.26m) and Arbitrum Nova (1.18m) processed more transactions than Ethereum (939k).

We’re witnessing Ethereum’s rollup-centric roadmap play out in real-time, and that’s a huge milestone for both Arbitrum and Ethereum.

✨Community Events:

This week we hosted our Players Gonna Play series with Zeeverse

https://www.youtube.com/watch?v=FB_uB7tLRYA

https://twitter.com/arbitrum/status/1650376124642230273?s=46&t=ee4Bi3rldJHL5R308MPN4Q

To end it off, we welcome all the new projects joining our ecosystem 💙🧡

vertex_protocol (DEX)

DggNetwork (Gaming)

A3SProtocol (NFT Wallet)

symbiosis_fi (DEX)

pimlicoHQ (Account Abstraction Infrastructure)

Have a great weekend Arbinauts! Stay tuned for the next one!