Ethereum needs an open protocol to support L2 interoperability.
Enter Espresso Testnet 5: Cappuccino.
As an important step towards building a permissionless & neutral system, we have expanded Espresso's finality layer to 100 nodes with participation from 10 external operators.
The Espresso Sequencer exists to scale Ethereum rollups.
To support this vision, we're excited to unveil our work integrating with the
@Arbitrum
stack.
This integration is a part of our latest testnet release:
Gibraltar.
Espresso Sequencer Testnet 1 - Americano - is now released to the public!
Americano is an internal testnet. In future releases, we will start engaging with external validators. Reply here or send us a DM if you are interested!
We are looking to work with node operator partners as we further decentralize the Espresso Sequencer in its fifth and upcoming testnet, Cappuccino.
If you are interested in becoming an Espresso Sequencer node operator, please consider applying below:
As Ethereum builds a rollup-centric future, rollups are exploring how to decentralize their sequencer and improve interoperability.
To further this vision, we are building the Espresso Sequencer.
Today, we are excited to announce our second major milestone and testnet:
Doppio.
We are thrilled to announce that we are partnering with
@OffchainLabs
to improve transaction ordering and to bring a shared sequencing option to Arbitrum technology chains.
Rollups are delivering on their promise to scale Ethereum & make it useful for a wider range of applications, but today rely on centralized sequencers.
We are building the Espresso Sequencer: the way rollups will decentralize.
Read more (much more) now:
We’re excited to announce Kyoto, an Arbitrum Orbit chain integrated with the Gibraltar testnet.
This testnet is co-deployed with the
@alt_Layer
team and is open to the public 🇯🇵☕
☕️ Testnet 1 and Roadmap Release! ☕️
Today we are sharing more about our plans to contribute to L2 scaling efforts in the Ethereum ecosystem and beyond.
Introducing the Espresso Sequencer:
The Gibratar testnet sees an external operator running Espresso Sequencer nodes for the first time and features a new integration with the
@Arbitrum
Stack.
Today, we’re excited to highlight our collaborators for Gibraltar:
@Calderaxyz
,
@KintoXYZ
,
@BlockdaemonHQ
,
@airchains_io
,
Our mission is to preserve Ethereum's core value: composability.
Based Espresso is our latest development towards a future of composable L2s.
This design sees L2s retain autonomy over their sequencing rights, and supports any Ethereum L2, from based rollups to validiums:
We built HotShot, an optimistically responsive consensus protocol designed in Rust to scale to 1000s of nodes without a loss in performance, to power our original sequencing layer.
Today, we're releasing HotShot for other teams to use under an MIT license.
Read on👇
The Gibraltar testnet unveiled our integration with the
@arbitrum
stack, paving the way for Orbit chains to integrate with Espresso.
We’re now sunsetting Gibraltar as we prepare to launch our most decentralized testnet yet.
Cappuccino is coming soon ☕
L2s are the future 🚀 That is why we have launched CAPE on
@arbitrum
testnet!
Experience the custom privacy of CAPE with the low fees of Arbitrum! Set up the application by following the instructions here:
CAPE is now live on Ethereum's Goerli testnet 🦸🏻
If you don't know, CAPE stands for Configurable Asset Privacy for Ethereum: meaning you get to decide who can see data about your transactions
You can get started with CAPE here:
Today we are sharing our work integrating the OP Stack. 🔴
OP Stack developers can start leveraging the decentralization, speed, & scale of the Espresso shared sequencer network.
This integration is a part of our latest testnet release:
Cortado.
We have open sourced HyperPlonk!
We are glad to also be collaborating with the Ethereum Foundation on integrating HyperPlonk with their Halo2 library and front end.
Read more here 👇
At
@permissionless
II, we announced our partnership with
@OffchainLabs
to bring a decentralized version of Timeboost to the
@arbitrum
ecosystem and beyond.
Today, we’re sharing an update on R&D efforts and a jointly authored roadmap:
The Espresso Sequencer’s integration with the
@arbitrum
stack was publicly released three weeks ago.
Now anyone can deploy applications and test transactions on Arbitrum rollups leveraging the Espresso Sequencer.
Want to test it out?
There’s a few ways to get involved 👇
The Espresso Sequencer exists to scale Ethereum rollups.
To support this vision, we're excited to unveil our work integrating with the
@Arbitrum
stack.
This integration is a part of our latest testnet release:
Gibraltar.
The Gibraltar testnet has sequenced over 1 million blocks 🎉
The testnet has been live for a little over 2 weeks, and over 70,000 unique addresses have participated in testing Gibraltar.
Gibraltar has also experienced improved up-time compared to previous testnets.
A
L2s are scaling Ethereum, but the vast number of rollups threatens to break composability within the Ethereum ecosystem, fragmenting liquidity and creating friction.
Enter: the shared sequencer. 👇
The Espresso Sequencer recently passed its second major milestone and testnet.
And today, we are excited to share that Doppio is now open to the public.
The ecosystem’s first public testnet for a shared sequencing layer is here:
Kyoto 2.0 is now live on Cappuccino Testnet
Our friends at
@alt_layer
are back with a new deployment of their
@arbitrum
Orbit rollup on our latest testnet
The
@Calderaxyz
team is back with another rollup deployed on the Espresso Sequencer ☕
Introducing Milan, an Arbitrum rollup leveraging the Gibraltar testnet’s integration with the
@Arbitrum
stack:
"But where are the use cases?"
Check out
@RariChain
: pioneering how creators get paid & build communities, underpinning apps like the
@rarible
NFT marketplace.
And soon
@RariChain
will be one of the first chains in production with Espresso. 🔜
Reminder: If you're interested in running an Espresso Sequencer node for the Cappuccino testnet, the application window to apply closes tonight at 23:59 Pacific (USA) ⌛️
We are looking to work with node operator partners as we further decentralize the Espresso Sequencer in its fifth and upcoming testnet, Cappuccino.
If you are interested in becoming an Espresso Sequencer node operator, please consider applying below:
We’re excited to announce that the Espresso Sequencer testnet is now integrated with the
@0xPolygon
zkEVM stack.
Rollups built with the Polygon zkEVM stack can leverage the integration to process transactions with the Espresso Sequencer.
A new Espresso Sequencer integration is on the way 🔜
@cartesiproject
’s Technical Vision Council recently voted in favor of integrating with the Espresso Sequencer network:
The Espresso Sequencer recently released its third major milestone and testnet, Cortado.
And today we are unveiling the first live, public demo of a shared sequencer.
This demo not only supports multiple rollups, but multiple rollup stacks:
We think a lot about preconfirmations.
That's why we’ve designed Espresso on HotShot, a consensus protocol specialized in sequencing and fast finality. In our latest blog, we explore this design alongside Tendermint, another well-known consensus protocol.
🎮⛓️ The future of gaming is here with
@Treasure_DAO
and Espresso Systems!
Soon you’ll be able to move effortlessly across Treasure as the "decentralized Nintendo" – a seamless and expansive gaming ecosystem that will be connected by Espresso's cross-chain infrastructure.
"The status quo of trusting centralized sequencers is not great."
While at
@modular_summit
,
@charleslu1
spoke with
@albertchon
of
@injective_
. They covered:
-Injective's history
-Shared sequencing design space on Injective
-& more
Listen to the full conversation below ☕️👇
Mainnet soon.
Espresso CEO
@benafisch
will be speaking at mainnet in New York next week, sharing more about our upcoming release.
Make Ethereum Composable Again
We think a lot about rollup preconfirmations.
We have been working on a design we call Byzantine Fault Tolerant (BFT) preconfirmations. In our latest blog, we explore this approach alongside Proposer-Promised preconfs, as initially described in the context of based sequencing:
On the nights of July 9 & 10 we will be co-hosting pub nights at
@EthCC
to watch the semi-finals of the EURO 2024 matches.
If you like football, friends, and free drinks and swag, RSVP below [see next post!]
We recently announced the Espresso Sequencer is coming to the Injective ecosystem.
And to dive deeper into the collaboration, we’re hosting a Twitter spaces with the
@Injective_
team.
Join us this Wednesday at 10:00am Eastern 🕙
Link here 👉
We’re excited to see
@OmniFDN
announce their plans to integrate the Omni Overdrive testnet with Vienna! 🔥
We love seeing cross-chain interoperability solutions take advantage of the benefits of shared sequencing.
Expect updates from our teams in the coming weeks!
Liquidity fragmentation and rollup interop are two of crypto’s biggest UX problems.
How do we solve it? We’re diving into solutions with
@OmniFDN
and
@Calderaxyz
this Friday.
The spaces will be at 1pm Eastern 🕐
Set your reminders 👇
Join
@cartesiproject
and Espresso Systems at our IRL happy hour in Denver!
We’ll be exploring how a new wave of L2 infra can support app-chains with a variety of virtual machines.
Drinks are on us 🥂 Event information and registration below 👇
As we prepare for mainnet, we are sunsetting Cappuccino.
Thank you for your support in battle testing the network. Shoutout to all the node operators who participated & to
@alt_layer
who deployed the Kyoto rollup for testing.
Together, we will Make Ethereum Composable Again!
Post your address here and we will send you some test transactions on CAPE's Goerli testnet!
The transactions we send will have privacy configured so that we as admins can see what's being sent, but the general public won't be able to!
To ensure integrating with the Espresso Sequencer is permissionless, and also support rollups with any type of VM, the Espresso Sequencer leverages the derivation pipeline:
World Chain will be secured by Ethereum & engineered for scalability with the Superchain ecosystem, with a broad community of projects building apps for everyday life.
We’re stoked to take Ethereum “Back to the Future” this upcoming Monday with
@cartesiproject
⏳
It’ll be a night focused on bringing an internet-like experience to Web3.
Since our upcoming testnet is on the horizon, we've decided to sunset Cortado.
Our team is fully focused on releasing the Espresso Sequencer's next testnet, Gibraltar, in January:
NEW CHALLENGE:
Create a new asset in CAPE. You can create either a wrapper for ERC-20s or a completely new CAPE asset.
Fill out the form here to share your asset's metadata with the community and enable others to add your asset to their library!
Cortado: Espresso Testnet 3 Status and Updates
Cortado is the first publicly deployed testnet for a decentralized shared sequencer, integrating with multiple rollup stacks.
A primary goal of our testnets is to uncover improvements and fixes that we should prioritize on our way
Going to
#ETHDenver
and planning on attending the
@Arbitrum
Shake Shack Takeover on March 1st?
We’ll be hosting a happy hour right next door 🥃
Come meet the
@EspressoSys
team and learn more about our work in the Arbitrum ecosystem ☕
🕟 March 1 from 5-8pm
"The future of crypto assets and Web 3 applications can empower builders to be intentional about who sees their users’ data."
Read more from
@jillrgunter
in
@CoinDesk
Espresso Systems Head of Strategy
@jillrgunter
and GC
@M_Mosier_
will be hosting a conversation with leaders in privacy, policy and beyond on Friday at 11am PT / 2pm ET.
Set your reminder here!
The Vienna OP rollup got rickrolled.
If you’ve been following developments in the Espresso Systems ecosystem, you may have seen our announcement that Cartesi put a 17MB video through the Espresso Sequencer.
We expected this video to be isolated to the Cartesi rollup running on
Rickrolling over a shot of espresso ☕
While exploring an integration with the
@cartesiproject
stack,
@stskeeps
submitted a 17MB video over the Espresso Sequencer.
Demo below 👇
Proposer-Builder Separation helps achieve validator decentralization for blockchains.
As we build HotShot to be compatible with PBS, we look to address one of its key outstanding problems: fair exchange between proposers and builders without reliance on trusted third parties.
We’re diving into encrypted mempool designs and how to combat malicious MEV with
@project_shutter
.
We’ll also discuss two potential designs related specifically to our collaboration.
Join us on March 5, 14:30 UTC on Spaces.
Set your reminders here 👉
Two weeks ago, speakers from 23 industry-leading projects joined
@BTBLayer
.
We discussed infra, different stacks and their tradeoffs, and the process of choosing an L2 stack to deploy on.
Grab a shot of espresso and listen to some of Ethereum's finest builders ☕
Why you should care about DPC (Decentralized Private Computation) 👇
A lot of people are asking right now what happens if validators start excluding Tornado Cash transactions, given the smart contracts are now listed as sanctioned.
We’re excited to support
@CatalystAMM
improve cross-rollup liquidity!
The cross-chain AMM platform will be prioritizing rollups that deploy on the Espresso Sequencer to take advantage of the interoperability support we offer.
Read more here:
"Safely ensuring privacy for the digital economy will be a core global competitive advantage."
Read more in this oped by our GC
@M_Mosier_
along with former CFTC CIO
@DGorfine
:
The Espresso Sequencer is agnostic and doesn’t tailor any services to a specific L2.
Ensuring credible neutrality is a key design principle, and something our team carefully implemented into the protocol.
Why did we prioritize this? 🧵
We can separate transaction ordering out into a layer 1.5 – creating a design with different benefits and tradeoffs from the L1.
This Layer 1.5 can be run by the same physical nodes as the Ethereum Layer 1, yielding the same trust assumptions as Ethereum itself.
🧵
Rickrolling over a shot of espresso ☕
While exploring an integration with the
@cartesiproject
stack,
@stskeeps
submitted a 17MB video over the Espresso Sequencer.
Demo below 👇
Espresso joins the IoTeX 2.0 Modular DePIN Infrastructure as the Sequencer Module.
Together, IoTeX and
@EspressoSys
are partnering to create the first ever DePIN-specific Sequencer for W3bstream.
Building DePIN-centric to make
#DePINforEveryone
.
Reminder: Our call with
@BlockdaemonHQ
is tomorrow at 15:00 UTC.
We'll be diving into Blockdaemon's experience running an Espresso Sequencer node.
Interested in running a node for our upcoming testnet, Cappuccino?
Set your reminders here 👉
The Decentralized Timeboost spec is here!
The product of an 8 month collaboration with Offchain Labs, you can learn more about the design and read the spec now.
CAPE is up and running smoothly again after more upgrades this week.
If you haven't used CAPE to create, send and receive private assets yet, get started here:
The Espresso Sequencer and Espresso DA are coming to
@alt_layer
and its users.
We are glad to support AltLayer in integrating with us to provide another option that supports decentralization, scale, and interoperability:
We have found & developed fixes for a few bugs in the Espresso Sequencer consensus supporting the Cortado testnet. The testnet is down while we prepare & deploy these fixes.
Thanks to all testnet users who helped us discover & identify these. Stay tuned for updates.
The
@CartesiProject
team made history by Rickrolling a rollup. 🕺
To celebrate, we’re co-hosting an R&D call where we'll cover their integration and how they sent a 17MB video over the Espresso Sequencer.
Join us on October 31, 13:30 UTC 🕜
We are glad to share that our proposal for building the OP Stack’s Leader Election proof-of-concept has been accepted.
We are thrilled to be contributors to the OP Stack and the Superchain.
You can read our proposal here 👉
Bridging with Espresso: how does the HotShot protocol improve your bridging experience?
HotShot grants L2s fast finality, which enables bridging in seconds with similar safety guarantees to waiting 15 minutes for L2 transactions to finalize on Ethereum.
We’ve been collaborating with
@cartesiproject
, a rollup framework powered by the Cartesi Virtual Machine that enables developers to launch app-specific optimistic rollups with a Linux runtime.
Introducing VERI-ZEXE!
VERI-ZEXE is a decentralized private computation system that will be used in future versions of CAPE to enable arbitrary, user-defined privacy policies for Web3 assets and interactions.