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Haichen Shen
280 posts
user avatar
Haichen Shen
@shenhaichen
California, USA
haichen.xyz
Joined April 2009
1,032
Following
7,022
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  • user avatar
    Haichen Shen
    @shenhaichen
    Oct 13, 2022
    zk-rollup is not zero knowledge. It only uses compression feature from zk for scaling. We should have a better name for it, eg. succinct rollup or validity rollup. Any better idea?
  • user avatar
    Haichen Shen
    @shenhaichen
    Mar 4, 2023
    almost 100k unique addresses have deposited 11k GoerliETH to our bridge
    user avatar
    pseudo 🇺🇦
    @pseudotheos
    Mar 4, 2023
    On March 1st, 10% of the total Goerli gas was spent by @Scroll_ZKP Probably nothing
    42K
  • user avatar
    Haichen Shen
    @shenhaichen
    Mar 17, 2023
    On Monday, we will teach you how to write circuits in halo2 and introduce the hackathon project at zk-hacking.org/tracks/zk_circ… The task is to implement circuits for precompiled contracts. You will get a chance to contribute to the community-driven zkEVM and get guidance from us!
    user avatar
    Scroll
    @Scroll_ZKP
    Mar 15, 2023
    Ever wanted to learn how to build ZK circuits but don't know where to start? Join Mason Liang, circuit engineer at @Scroll_ZKP, for a free online workshop introducing circuits with halo2-ce on March 20th! eventbrite.com/e/building-and…
    28K
  • user avatar
    Haichen Shen
    @shenhaichen
    Nov 29, 2022
    1/ Despite that we are the main organizer who put together the logistics of this joint auditor education session, coordinated with speakers, and invited most of auditors, there is not even a mention from the Polygon team.
    user avatar
    Polygon | POL
    @0xPolygon
    Nov 29, 2022
    #Polygon and the Ethereum Foundation recently got together for a series of dev-led discussions about Zero Knowledge, the EVM, and what we learned stress-testing Polygon zkEVM. For an overview of the discussion series, click 👇 polygon.technology/blog/polygon-p…
  • user avatar
    Haichen Shen
    @shenhaichen
    Jan 13, 2023
    On Jan 9, we upgraded and reset our Pre-Alpha Testnet with the new batching feature release and reliability improvement. In the first week, we've already received lots of traffic. As of today, the testnet - got 270k+ unique addresses - processed 110k+ txs daily on L2
    31K
  • user avatar
    Haichen Shen
    @shenhaichen
    Oct 16, 2023
    35K
  • user avatar
    Haichen Shen
    @shenhaichen
    Nov 30, 2022
    Glad to see the acknowledgment from Polygon. Further, we will continue working with the community to bring more education about zkEVM, Scroll, and general zk. Reach out to us if you would like to contribute!
    user avatar
    Polygon | POL
    @0xPolygon
    Nov 30, 2022
    Replying to @0xPolygon
    To be clear, our colleagues @Scroll_ZKP and @shenhaichen graciously participated and co-organized. It would not have been a robust discussion without them. To learn more about Polygon, the Ethereum Foundation, and Scroll’s contributions, read the blog post 👆
  • user avatar
    Haichen Shen
    @shenhaichen
    Apr 11, 2025
    The Euclid upgrade proposal just passed the voting. It means that in 2 weeks - @Scroll_ZKP will become the first stage-1 zk rollup - >2k TPS with sub-cent tx fee - upgrade to zkVM prover @openvm_org - support EIP-7702 and RIP-7212 - migration to MPT for more compatibility
    Euclid Upgrade
    From gov.scroll.io
    11K
  • user avatar
    Haichen Shen
    @shenhaichen
    Mar 12, 2024
    In fact, there are already many L2s that have separate fee structures for execution fee and data fee, including Scroll and OP stack chains. With the 4844 data blobs, the separation fee for execution and data makes more sense as L2 txs can benefit directly from the fee reduction
    user avatar
    Declan Fox
    Linea.eth
    @DeclanFox14
    Mar 12, 2024
    Replying to @0xtaetaehoho @MetaMask and 2 others
    Because there is no widely adopted L2 gas fee standard, each L2 builds something slightly different and is a pain for, e.g. wallets. Breaking EVM is a big decision which is why, for now, Linea kept its pricing to the L1 spec and manages multi-dimensional fees under the hood
    29K
  • user avatar
    Haichen Shen
    @shenhaichen
    Nov 5, 2022
    great updates on the roadmap with more details! got to work hard to get rid of the training wheels for Scroll!
    user avatar
    vitalik.eth
    @VitalikButerin
    Nov 4, 2022
    Updated roadmap diagram!
  • user avatar
    Haichen Shen
    @shenhaichen
    Aug 25, 2022
    I'll share the Scroll's architecture design at the UETH this Sunday. Look forward to seeing you there!
    user avatar
    De University of Ethereum
    @deUETH
    Aug 24, 2022
    Introducing our next speaker, Haichen (@shenhaichen), co-founder of Scroll (@Scroll_ZKP)!🥳🥳 He will be sharing his insights on “Scroll Design and Architecture.” Meet him at #CHASECENTER on Aug 28th: go.ueth.org #UETH #UETH
  • user avatar
    Haichen Shen
    @shenhaichen
    Oct 17, 2023
    An old draft of zkEVM circuit architecture. This wasn't solely the work of @Scroll_ZKP. It's a testament to the collective insights from our open-source collaboration with @PrivacyScaling and many other contributors. 🤝
    user avatar
    Alex Evans
    @alexhevans
    Oct 17, 2023
    Replying to @alexhevans
    To give you a sense: Even in late 2021, we (like most reasonable people) didn’t believe a performant, bytecode-compatible zkEVM was possible In October of that year, @shenhaichen came by @BainCapCrypto and drew up an early version of the Scroll system with me and @angeris
    8.7K
  • user avatar
    Haichen Shen
    @shenhaichen
    Jan 1, 2024
    In 2023, we shipped the Scroll mainnet, an important milestone. We will continue the hardworking in 2024. A quick peek into 2024, we will - improve the UX - reduce the bridging gas cost - data compression and 4844 data blob to reduce tx cost - EIP-1559 tx type and SHA256
    user avatar
    Scroll
    @Scroll_ZKP
    Dec 29, 2023
    2023 was the year of developer onboarding and community building 📜 As we open the door to 2024, we want to take a moment to reflect on some of our greatest achievements at @Scroll_ZKP over the past year: 👇 👇
    11K
  • user avatar
    Haichen Shen
    @shenhaichen
    Feb 28, 2023
    Thanks for all the interest in our testnet. We are working hard to keep it up, even with Goerli gas at 500! 😂
    user avatar
    Scroll
    @Scroll_ZKP
    Feb 27, 2023
    For nearly two years, we've built our zkEVM in the open alongside @privacyscaling and other contributors, and today, we're taking the next step to Goerli, the final stage before mainnet. Our testnet on Goerli is 100% permissionless. Here are the details:
    36K

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