ncitron.eth
@NoahCitron
Followers
9,653
Following
1,112
Media
83
Statuses
1,226
building open source public goods @a16zcrypto
New York, NY
Joined September 2020
Don't wanna be here?
Send us removal request.
Explore trending content on Musk Viewer
Chelsea
• 287384 Tweets
#LAMeetandGreetxENGLOT
• 133284 Tweets
Celtics
• 80853 Tweets
Pacers
• 65981 Tweets
Tatum
• 29577 Tweets
Mikael
• 24783 Tweets
Barco
• 22523 Tweets
O Vasco
• 22108 Tweets
Omar Geles
• 21844 Tweets
Gaston
• 20796 Tweets
Fortaleza
• 20354 Tweets
Herrera
• 19331 Tweets
#WWENXT
• 17453 Tweets
#Aashirwad
• 14934 Tweets
Haliburton
• 13335 Tweets
Temperley
• 12572 Tweets
#サブウェイ新サンド
• 11283 Tweets
Tyrese
• 10259 Tweets
Vallenato
• 10060 Tweets
Jアラート
• 10022 Tweets
Pinned Tweet
We just released Helios 0.5.2 which adds support for the Dencun hardfork and sets the required configuration fields for Goerli!
If you use Helios with the Goerli network, be sure to run heliosup before the fork tomorrow.
4
4
36
Today we're announcing Helios, a fast, portable, and secure Ethereum light client written in Rust.
Helios syncs in two seconds, uses no storage, and provides trustless access to Ethereum.
Code:
Post:
1/8
158
511
2K
Introducing Magi 🟠, our brand new OP Stack rollup client written in Rust.
We've been working on Magi to help improve the client diversity and resilience of the entire OP Stack ecosystem.
Lets dive in.
code:
blog:
85
388
1K
A few days ago,
@samczsun
pointed out that
@indexcoop
's Rari pool 19 was being attacked. While this was indeed an attempted oracle manipulation, the attacker ended up failing miserably and lost 68 ETH.
Here's a breakdown of how it went wrong for the attacker:
16
124
607
Life update:
I'm joining
@a16z
crypto as a research engineer!
Super excited to solve difficult problems with some of the best investors, engineers, and researchers in the space.
48
18
609
Learn cryptography in public with me!
To learn more about the cryptographic primitives we rely on, I'm implementing a few of them in Rust. Each module will have it's own readme explaining how it works and anything I learned along the way.
19
62
406
The challenge that launched a thousand lines of code and created one of the strangest looking blocks in Ethereum's history.
@mg_486662
and I cracked the IAmTheOptimizer challenge, here's how we did it.
1/10
33
72
377
$DPI is just 9k $COMP and 500k $UNI away from being able to make governance proposals on its own.
@indexcoop
is rapidly becoming one of the most influential voters in the entire DeFi ecosystem.
6
20
195
A 1000 ETH buy of $DPI on
@Uniswap
V3 executes at just 3% slippage compared to 23% on V2. Both pools have nearly identical TVL. The fact that protocols are still doing LM on V2 is astounding to me.
14
21
180
This was probably the best way this situation could have shaken out. A bot made some money, and a bad actor lost some.
Huge shoutout to
@samczsun
for noticing the attempted attack and to the
@RariCapital
team for responding by disabling BED as collateral on pool 19.
0
1
142
I've been meaning to learn Cairo for a while, so as a first project I built a merkle distributor so projects can easily do airdrops on
@StarkWareLtd
's StarkNet!
Definitely check out the code if you want to get a feel for Cairo
3
14
128
Alright who's going to shove eth rollup data into the taproot witness first to piss the bitcoiners off?
4
7
131
Super excited to be starting at
@indexcoop
full time! Huge shoutout to everyone who smacked those yes votes on IIP-66 to make this happen.
12
5
128
Check out the GitHub, which includes installation instructions that can get you using Helios in five minutes.
Feel free to check out the code. We'd love to see community contributions, and intend to keep working on Helios ourselves.
We can't wait to see what you build.
8/8
1
5
125
Our solution is Helios, a light client that syncs in less than two seconds, requires no storage, and provides trustless access to Ethereum.
Helios uses Ethereum’s new light client protocol to provide efficient access to the chain with the same functionality as a full node.
5/8
1
7
115
Today we released Jolt, our new zkVM! While we've highlighted its performance characteristics, I want to show off its incredible developer experience. Using Jolt is as simple as adding #[jolt::provable] to your Rust functions.
1/ We're excited to share the initial release of Jolt, a new approach to zkVM design. Early benchmarks indicate it outperforms RISC Zero by ~6x and SP1 by up to 2x. Major optimizations are still in the pipeline.
106
123
621
5
9
116
All of us are working towards a design that brings 1000x scalability via danksharding and rollups.
Them: the core devs are so out of touch if we just double the gas limit all of our problems would go awaaaay!
6
38
107
Helios is very lightweight. Users will have no trouble running it on low-cost hardware and mobile devices.
This makes Helios a prime target to integrate into other applications. Imagine if your wallet had a light client build directly into it. Helios can do this!
7/8
2
6
104
Helios works together with your centralized RPC provider to create a verifiably correct local RPC on your machine.
A good mental model for Helios is that it converts a centralized RPC that you may not fully trust into one that is provably safe.
6/8
5
4
97
What are the best cryptography books for technical people who don't have degrees in math?
Looking for something geared towards people like myself who understand calc/diffeq/linear but get lost the second you start talking about groups and fields.
23
11
96
One of these arb bots saw the opportunity created by the attacker and minted 4,900 BED from the underlying tokens and sold it into the Uniswap pool, ruining the attackers plans. This arb ended up yielding 68 ETH, taken straight from the attacker.
3
6
97
I know what I'm working on tomorrow. Thanks for the feature request
@VitalikButerin
One way
@a16z
Helios could meaningfully improve things on user privacy and gain more adoption is by combining multiple useful features into its proxy: in addition to its current light client features, also route user requests through Tor.
217
293
1K
6
6
91
Most users currently access Ethereum using a centralized RPC provider. These are nodes run by companies in the cloud, providing convenient access to chain data.
When a wallet fetches your account balance, odds are its routing this request through a centralized provider.
2/8
1
4
92
Earlier today, ETH2xFLI simultaneously used Uniswap V2 and Sushiswap during a rebalance!
It routed 34 ETH through Uniswap and 53 ETH through Sushiswap. Computing the optimal split was done entirely on-chain.
Just one of the many ways we are making FLI safer!
2
10
94
I have a midterm tomorrow and another on Tuesday but instead of studying I'm coding up an
@AaveAave
governance proposal and watching the Superbowl
5
1
93
Just read the
@feiprotocol
turbo contracts and I'm so bullish. This is going to be a new DAO primitive.
3
9
87
nobody uses ethereum because too many people are using ethereum
8
8
90
While these providers are convenient, users have no way to know that they are being served correct data. You just have to trust that the provider is being honest.
In the blog post, we even describe a mechanism in which malicious providers can steal funds from their users.
3/8
1
4
77
New Jolt feature just dropped!
Jolt programs now support using the Rust Standard Library!
This means that nearly all existing Rust programs are compatible with Jolt, opening up the door for new applications that make use of Rust's full ecosystem.
5
15
77
Ok but what if instead of building trustless systems we just went to therapy and started trusting more.
4
5
71
Instead of fighting about gas golfing why don't we just support the good people contributing to
@solidity_lang
and
@vyperlang
who are working on code optimizers so that we never have to think about gas golfing again.
11
4
74
Recently
@mg_486662
and I cracked the IAmTheOptimizor challenge by
@0x_Beans
. We've released a blog post detailing the challenge, our solution, and an informal proof that we can't be beat (for now).
Check it out here:
2
9
73
$INDEX is now ~35% backed by liquid assets sitting in the
@indexcoop
treasury and associated multisigs.
2
5
74
Users have traditionally solved this problem by running their own nodes — a time and resource-intensive endeavor that, at the very least, requires a constantly-online machine, hundreds of gigabytes of storage, and around a day to sync from scratch.
4/8
1
4
70
Optimistic rollups are probably the better solution for extremely high throughput and low composability applications such as onchain games due to the proving overhead of ZK.
ZK probably still wins out for more monolithic usecases where composability matters though like DeFi.
11
8
73
Is it ethical to have ChatGPT write your Christmas cards?
Yes
3918
No
1037
21
5
57
How do we make mobile blockchain safe for all?
Check out our team's big ideas for 2023:
9
13
67
New Magi feature just dropped 🟠
We've added full support for Optimism's p2p networking layer!
This will allow all Magi nodes to sync to the "unsafe" head, which includes blocks that have not yet landed on L1.
6
12
60
The block is 15735631 for those who are interested
27 total transactions
4
3
61
If
@rainbowdotme
adds snapshot voting to their wallet I would be like 10x more involved in governance. When y'all adding this
@mikedemarais
?
1
1
63
@adamscochran
I wouldn't really call this a liveliness failure. The chain is basically operating in longest chain mode (technically LMD-GHST but close enough).
If the lack of finality caused large reorgs, one might call this a safety failure, but that didn't happen so...
2
0
59
@VitalikButerin
@a16z
Good idea! Will look into the implementation. I just wonder if Tor is fast enough to fetch all the proofs in a reasonable amount of time?
37
3
53
Are there any rollups that plan to decentralize their sequencer using Tendermint to elect the leader? Seems like a nice shortcut to removing single sequencers.
12
3
57
So what is Magi? It takes the place of a consensus client (often called rollup client) in the OP Stack, and works alongside an execution client such as op-geth to sync.
Currently, OP Labs maintains op-node, the reference implementation. Magi performs the same functionality.
2
0
56
You can now earn 0.73% interest paid out in $AAVE on
@indexcoop
's $DPI on
@AaveAave
now that AIP-47 has been executed. Not crazy high but probably the safest yield you can earn on $DPI right now.
5
8
54
Huge shoutout to
@mg_486662
for being the brains behind the operation. He figured all the contract optimizations. I just built the block builder.
This was an awesome little project that took some serious engineering to get right.
Our reward: being crowned the optimizers
10/10
4
1
50
We hope to see others continue to work on implementations of other components of the OP Stack. Diversity across the board makes the protocol more resilient to failures.
We'll have some more updates for you all in the future.
For now, stay optimistic!
🟠
1
0
53
Please lord please give us verkle trees. The stateless stuff it opens up is cool, but it also makes light clients like Helios much more efficient. I'd expect Helios would consume nearly an order of magnitude less data post-verge.
Here's an overview of everything that's been proposed (so far) for Prague/Electra 👀
See the full thread on
@EthMagicians
🧙♀️
25
97
391
3
6
51
trying to restrain myself from running a light client on the a16z office coffee machine
7
0
53
Recently found Decentralized Thoughts and it is quickly becoming one of my favorite crypto blogs. Definitely check it out for deep dives on consensus, cryptography, and distributed systems.
0
2
51
Inspired by
@sw0nt
's challenge, I wrote up a little contract that when called, creates two copies of itself then selfdestructs using
@huff_language
.
Feel free to give it (or one of its descendants) a poke on Goerli at 0xb427bfa9641245914d86ae4425d72294f72a45e4
3
4
52
I guess we don't deserve fourth amendment protections because we might be terrorists.
0
34
44
Very cool page hidden in the depths of the
@optimismFND
website breaking down the entire diff between geth and op-geth.
7
13
49
Someone is borrowing $150k worth of $DPI and sold it to collateralize the position with $ETH, $MKR, $WBTC, and $LINK. Effectively betting that these tokens will outperform DeFi as a whole.
Overall really cool use case of
@indexcoop
's $DPI on
@AaveAave
.
3
2
49
Magi now supports Optimism Mainnet!
5
5
48
Narratives are dumb. Life is like a greedy algorithm. Make good individual decisions and you will find the global optimum outcome (usually).
2
34
41
It's important to note that Magi is brand new, and shouldn't be considered a production-ready client. We are however committed to getting there eventually.
It can already sync to both the Optimism and Base testnets, so feel free to give it a spin if you're brave!
1
2
46
@adamscochran
Disagree. The validators have quite a good understanding of the current state, they just can't make a full guarantee that a reorg is impossible. The only way to reorg during a non finality event would be essentially a 51% attack. In other words, ETH looked like BTC for an hour.
2
3
43
What are your favorite smart contract design patterns? Looking for everything including upgradability, modularity, auth, proxies, and all the little tricks people have come up with to build complex contact systems.
11
5
46
Want to listen to me ramble about proxies and their evils for 45 minutes? Come listen to my a16z crypto startup school talk on smart contract design patterns!
@NoahCitron
@nassyweazy
@riyazdf
@PrimordialAA
@dwr
@alive_eth
Smart contract design patterns w/
@NoahCitron
3
3
26
8
7
45
You guys might have penguin profile pics but do you have a
@SetProtocol
intern NFT? Setting the floor price for this baby at 1000 ETH
5
9
46
None of this would have been possible without the OP Labs team and the broader Optimism Collective. They've built a great protocol, and have tirelessly specified it so well that we can build independent implementations of core components.
1
0
44
This has been a big effort. Several people from the OP Labs team have been invaluable already.
@refcells
has been a contributor since day one and
@protolambda
,
@trianglesphere
, and
@vex_0x
have all been incredibly helpful in understanding the details of the OP Stack.
1
1
43
Rust developers when we tell them we can prove all their programs with Jolt
1
3
48
Hearing reports that a parallel evm has been created at a lab in China. Waiting to see if any other labs replicate.
3
2
42
Y'all better vote to pay the
@SushiSwap
team. If not, you will lose them to DAOs that will.
On a totally unrelated note,
@indexcoop
is hiring engineers.
1
5
43
Friendship ended with op-geth, now op-erigon is my best friend.
(jk still love you op-geth)
2
0
44
Amazing to see
@EthereumPhone
using Helios as a built-in light client! Fully trustless access to Ethereum has never been easier!
A new ethOS light client just dropped.💥
Starting with Geth, ethOS has been giving people an Ethereum light client in their pocket.
As new options are developed, we are committed to offering them on ethOS.
6
16
79
10
7
41
Why doesn't geth automatically prune its db from time to time?
Sincerely,
Someone whose doing validator maintenance at 2am because geth ate all his disk space
4
3
43
Products from
@indexcoop
can be freely minted by providing the underlying tokens of the index. In the case of BED, an arb bot simply had to purchase wBTC, WETH, and DPI to mint new tokens. In practice many bots watch for these opportunities all day long.
1
3
43
So where did we end up sending the block fees?
0x0000000000000000000000000000000000000024
I told you we built Ethereum's weirdest block.
7/10
1
1
41
Like I said, we've got a long way to go before Magi is really ready for production use, but we want to build out in the open, and invite collaborators to contribute.
In the meantime, use op-node in production, maintained by the fantastic
@OPLabsPBC
team.
1
0
41
The IAmTheOptimzer NFT was created by
@0x_Beans
. The premise is simple, contestants write a contract that solves the classic 3sum problem. Contracts are scored by the sum of their gas usage and size.
If you beat the highscore, you steal the NFT from the previous winner.
2/10
1
1
39
I'm thankful for the open source contributors who maintain the tools, libraries, and applications that I love.
If you're a dev, consider contributing to some of your favorites. You will get to learn something new and do a good deed.
Maintainers, drop links to your repos below.
1
4
40
Built a really simple transaction tracer with
@OCamlLang
and
@htmx_org
It's missing some features like proper ABI decoding but its a good example of how htmx can be used to throw together a frontend with very little effort
1
5
40
Had a great time talking with
@jessepollak
and
@rhhackett
about all things rollups!
Definitely worth a listen.
Our new podcast episode covers the bustling area of “layer 2” rollups, a technology for scaling “layer 1” blockchains such as Ethereum.
Featuring
@jessepollak
from
@coinbase
along with our very own
@rhhackett
&
@NoahCitron
.
⤵
17
23
104
4
7
53
If you want to steal from a Rari pool, you need an asset that is using a Uniswap V3 TWAP oracle with no liquidity placed on a wide range. You then have to execute a giant buy to push the spot price extremely high.
2
1
39
Don't trust. Run a light client.
Imo industry directionally places:
-Too little emphasis on at-home verification
-Too much emphasis on at-home staking
25
12
155
2
2
34
Goal for this summer is to read a bunch of the classics with my friends. Starting it off this weekend with Republic. Anyone got recommendations for the next one we should pick up?
13
0
37
This makes sense since the coinbase address is the recipient of the block’s transaction fees (usually the block proposer).
Fortunately the introduction of proposer-builder separation gave us a way to do this.
We were going to become block builders.
5/10
1
0
37
The collective is growing. Great work all around
@testinprod_io
!
Syncing op-erigon with Magi now!
Introducing op-erigon on OP Goerli!
@testinprod_io
leveraged OP Stack’s modular and open source design to build op-erigon, an alternate execution client. 👏
This is an excellent complement to yesterday’s announcement of Magi,
@a16zcrypto
rollup client.
299
1K
2K
7
4
36
The frames will be written and they will be written in OCaml
2
1
38
Update: just executed my first profitable arb
Just executed my first flashbots arb! Ended up losing a few dollars after gas fees, but getting closer. Already getting ideas for the next version.
2
0
32
4
0
38