Welcome to Observer #15
Ethereum Core Dev (ACD) & L1
1/ @nixorokish TOMORROW ACD #155
1/6 
ethereum's upcoming Thurs protocol development call: ACDC #155
17 Apr 14:00 UTC
Suspiciously quiet agenda...
Confirming Pectra mainnet client release readiness and finalizing Fusaka's CFI'd EIPs. Fork scope is a "soft" final, with a couple items needing clean-up
ethereum's upcoming Thurs protocol development call: ACDC #15517 Apr 14:00 UTC
Suspiciously quiet agenda...
Confirming Pectra mainnet client release readiness and finalizing Fusaka's CFI'd EIPs. Fork scope is a "soft" final, with a couple items needing clean-up
33
2/ @mikeneuder dives deep on blobs
happy tax day 
– to celebrate, here is a deep dive on blobs. we start by examining the L2 transaction lifecycle. this motivates a discussion on blob gossip and validation pre- and post-PeerDAS. we conclude by looking at possible mempool upgrades!
link and thread below ↓↓
– to celebrate, here is a deep dive on blobs. we start by examining the L2 transaction lifecycle. this motivates a discussion on blob gossip and validation pre- and post-PeerDAS. we conclude by looking at possible mempool upgrades!link and thread below ↓↓
3/ @scrollresearch rounds up Pectra
Pectra Rundown 1/ Ethereum’s next hardfork is set to go live in a couple of weeks.
It ships 11 impactful EIPs, bringing:
Doubled DA capacity Major UX improvements Enhanced core protocol security and utilityHere’s what’s coming and why it matters
4/ @nixorokish updates roadmap
5/ @nero_eth on execution dependencies in blocks
In my new post, I explore execution dependencies in Ethereum blocks:
ethresear.ch/t/execution-de…
TL;DR: Most blocks are highly parallelizable, though a few contain complex dependency chains.
Summary below
ethresear.ch/t/execution-de…
TL;DR: Most blocks are highly parallelizable, though a few contain complex dependency chains.
Summary below
ethresear.ch
Execution Dependencies
Execution Dependencies Thanks to Julian, Ignacio and Ben for feedback and review. TL;DR: Most Ethereum blocks are highly parallelizable. On average, 60–80% of transactions are completely independent,...
6/ @nixorokish Fusaka EIPs (@ Call notes)
Today's All Core Dev call agreed on a set of EIPs to Consider For Inclusion ("CFI") for Fusaka and Declined For Inclusion ("DFI") the majority of the EIPs proposed for the fork
The reason for this is devs want to ship PeerDAS (which is Scheduled For Inclusion, "SFI") as quickly
The reason for this is devs want to ship PeerDAS (which is Scheduled For Inclusion, "SFI") as quickly
7/ @ProtocolGuild 24H in ACD
24H in Ethereum Core Dev | April 15 - Blob-tx arrivals at the EL mempool
- Ethereum for everyone
- Deep dive on blobs
Feat. PG Members: @mikeneuder @drakefjustin
8/ @ladislaus0x This week in EF Research
As part of this week’s EF Research update…
…we’ll serve you an explainer on PeerDAS, updates on FOCIL and the latest on beam chain p2p-networking
Read on below
…we’ll serve you an explainer on PeerDAS, updates on FOCIL and the latest on beam chain p2p-networking
Read on below
9/ @rudolf6_ on cross-chain messaging
only a few key pieces are needed to solve 95% of Ethereum's crosschain UX today
crosschain messaging is one (to let smart contracts on different chains talk to each other)
ERC-7786: brings messaging standards together under a unified API
This Weds April 16th: discuss & debate
crosschain messaging is one (to let smart contracts on different chains talk to each other)
ERC-7786: brings messaging standards together under a unified API
This Weds April 16th: discuss & debate
Ecosystem
10/ @VitalikButerin on privacy
11/ @0xstark tokenized treasuries are built on ethereum
since it wasn't mentioned in the thread or article, FYI most of that increase was on @ethereum
x.com/laurashin/stat…
x.com/laurashin/stat…
On April 2, the day of Trump’s tariff announcement, the total tokenized treasury market was worth $4.85 billion.
Since then it has added another $1.01 billion, good for a 20.8% increase in under 2 weeks.
More on the saga 
Since then it has added another $1.01 billion, good for a 20.8% increase in under 2 weeks.
More on the saga
12/ @TMIYChao w/ the latest Ethereum Protocol Fellowship cohort
Cohort 5 of Ethereum Protocol Fellowship has been our most successful yet! We got had a lot of contributors, many of which ended up working in the core protocol. Read the full retrospective:
blog.ethereum.org/2025/04/10/epf…
blog.ethereum.org/2025/04/10/epf…
13/ @ethereum on Cypherpunk-ism
0/ You’ve probably heard people yapping about Cypherpunk, but what exactly is it and what is Ethereum’s specific brand of Cypherpunk? A guest thread by @post_polar_
14/ @EverclearOrg goes live!
Everclear is launching Full Mainnet.
Our 6mo beta is now complete!
Today: Solana support, Zero-fees, and Unlimited Rebalancing.
Our 6mo beta is now complete!
Today: Solana support, Zero-fees, and Unlimited Rebalancing.
15/ @ProtocolGuild A follow list of cracked eth contributor profiles
Want to follow the progress in Ethereum core development more closely? You're in luck!
We've compiled a list of X profiles for the cracked Ethereum contributors making up Protocol Guild
Add the list and never miss a beat ↓
x.com/i/lists/190934…
We've compiled a list of X profiles for the cracked Ethereum contributors making up Protocol Guild
Add the list and never miss a beat ↓
x.com/i/lists/190934…
16/ @alignedlayer latest ZK Newsflash
ZK-Newsflash! Here are the highlights of what happened in the ZK space from April 3rd to 9th — presented by @BJ_Dyakov.
News from us: updated roadmap and aggregation mode MVP on testnet. @fermah_xyz launched their first incentivized testnet. Project Tachyon
17/ @EthereumFilm released to streaming
Vitalik Buterin’s journey from teenage coder to Ethereum visionary is more urgent than ever.
As the market crashes, VITALIK: AN ETHEREUM STORY explores how his innovative vision for a decentralized internet can bring order and hope to a world in crisis.
Watch VITALIK: AN ETHEREUM
As the market crashes, VITALIK: AN ETHEREUM STORY explores how his innovative vision for a decentralized internet can bring order and hope to a world in crisis.
Watch VITALIK: AN ETHEREUM
18/ @ethdotorg and @buidlguidl on tour
Ethereum is going on tour - and your university could be the next stop! 
Our frens at @buidlguidl are partnering with university campuses and student organizations worldwide to teach you about Ethereum and how to build cool dapps
Check it out
Our frens at @buidlguidl are partnering with university campuses and student organizations worldwide to teach you about Ethereum and how to build cool dapps
Check it out
tour.buidlguidl.com
Ethereum on Tour
Bringing Ethereum curriculum, tools, and mentorship to you!
19/ @sassal0x latest @thedailygwei Refuel
The latest @thedailygwei Refuel is ready for your consumption! 
Today's topics:
- Based rollups
- Core dev updates
- Rise testnet live
- and much more
Watch
youtu.be/_NWW19Aiv7Y
Today's topics:
- Based rollups
- Core dev updates
- Rise testnet live
- and much more
Watch
youtu.be/_NWW19Aiv7Y
20/ @NathanSexer 2025 Events, also on @Fileverse
These events are also synced on: ethereum.org/en/community/e…
And hosted on @fileverse:
And hosted on @fileverse:
docs.fileverse.io
dDocs | Privacy-enhancing Alternative to Google Docs
Decentralized Docs: peer-to-peer document editor that keeps your data secure with end-to-end encryption. Real-time collaboration, onchain. Start collaborating privately now!
L2
21/ @Spire_Labs introduces DA Builder
Introducing DA Builder
Rollups scale Ethereum. DA Builder scales rollups.
By sharing blob space, rollups can reduce their DA costs and lower transaction fees for users.
Rollups scale Ethereum. DA Builder scales rollups.
By sharing blob space, rollups can reduce their DA costs and lower transaction fees for users.
22/ @arbitrum has 4.7bb in stables
RWA and Stablecoin adoption on Arbitrum has been monumental!
Some of the largest institutions are bringing their tokenized assets to the land of liquidity with $4.7B in Stablecoins and over $214M in RWAs already onchain
Let’s take a closer look
Some of the largest institutions are bringing their tokenized assets to the land of liquidity with $4.7B in Stablecoins and over $214M in RWAs already onchain
Let’s take a closer look
23/ @zksync loses remaining airdrop tokens
Update: the investigation has revealed that the account that was the admin of the three airdrop distribution contracts had been compromised. The compromised account address is 0x842822c797049269A3c29464221995C56da5587D.
The attacker called the sweepUnclaimed() function that
The attacker called the sweepUnclaimed() function that
24/ @taikoxyz accelerates preconfs
We’re excited to announce our strategic partnership with @fabric_ethereum and @Commit_Boost to accelerate preconfirmations for Ethereum’s based rollups. By combining our expertise and resources, we’re building a framework that benefits the entire Ethereum community.
1/
1/
Want to get involved?
Simply comment below or DM, and we’ll get to work!
Thanks everyone, and see you next week.
