Welcome to Observer #15
Ethereum Core Dev (ACD) & L1
1/ @nixorokish TOMORROW ACD #155
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
2/ @mikeneuder dives deep on blobs

– 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
ethresear.ch/t/execution-de…
TL;DR: Most blocks are highly parallelizable, though a few contain complex dependency chains.
Summary below
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)
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
…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
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
x.com/laurashin/stat…

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
blog.ethereum.org/2025/04/10/epf…
13/ @ethereum on Cypherpunk-ism
14/ @EverclearOrg goes live!
Our 6mo beta is now complete!
Today: Solana support, Zero-fees, and Unlimited Rebalancing.
15/ @ProtocolGuild A follow list of cracked eth contributor profiles
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
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

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

Ethereum on Tour
Bringing Ethereum curriculum, tools, and mentorship to you!
19/ @sassal0x latest @thedailygwei Refuel

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
And hosted on @fileverse:
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
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
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
The attacker called the sweepUnclaimed() function that
24/ @taikoxyz accelerates preconfs
1/

Want to get involved?
Simply comment below or DM, and we’ll get to work!
Thanks everyone, and see you next week.


