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Dan Robinson Profile picture
@danrobinson
Oct 14, 2022 • 1 tweets • 1 min read • Read on X
If you work with Ethereum data, this tool might change your life: abi-parser-nvk.vercel.app

You can enter any contract address, and it looks up the ABI and generates queries that can be run on BigQuery to create parsed tables for each event or function call on that contract: Image

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More from @danrobinson

Dan Robinson Profile picture
May 6
Fast trustless bridges usually require payments to be locked up in escrow

But what if users could just send to the relayer—trustlessly, and at a fraction of the capital and gas cost of the escrowed model?

Introducing Across Prime, a new design from me @hal2001 @mrice32

🧵 Image
Intent-based bridges use relayers to send payments faster than the speed of cross-chain messages

The simplest way to build a fast bridge is to have a trusted relayer. Users send money directly to the relayer and hope the relayer fulfills their intent on the destination chain Image
What if we don't want to trust the relayer?

@AcrossProtocol helped pioneer a trustless model based on escrow: users send payments into escrow, and the relayer claims it later after proving they fulfilled the intent

This requires each payment to be locked up for some period Image
Read 5 tweets
Dan Robinson Profile picture
Nov 5, 2024
New Paradigm research from me and @ciamac!

Prediction markets were the original motivation for AMMs, but today they mostly use orderbooks

One reason: outcome tokens don't behave like other assets

We present the pm-AMM, a new invariant designed for prediction markets

🧵 Image
This required addressing a deep problem—what does it mean for an AMM to be optimized for a particular asset (like options or bonds)?

Many have considered this before (including me and @niemerg with YieldSpace), but we didn't have a clear reason for picking one curve over another
The missing piece came from @jason_of_cs @ciamac @Tim_Roughgarden @alz_zyd_ , in their seminal paper on LVR

They showed that for geometric-Brownian-motion assets, constant geomean pools like Uniswap or Balancer have a nice property: LVR is a constant fraction of portfolio value
Read 9 tweets
Dan Robinson Profile picture
Jun 4, 2024
New mechanism with @_Dave__White_!

We present MEV taxes, a technique that:

* Lets arbitrary apps capture their MEV
* Preserves composeability
* Would work today on OP Stack L2s like @Optimism @base @Blast_L2

The secret? The surprising power of priority ordering 🧵 Image
To implement MEV taxes, smart contracts charge a fee as a function of the priority fee of the transaction.

We show that if a smart contract charges searchers a MEV tax of (say) $99 for every $1 of priority fee, it can capture 99% of the competitive MEV for that transaction. Image
MEV taxes are a flexible technique. We outline how they could address three major problems in MEV research:

* DEX routers like UniswapX that optimize execution
* AMMs that minimize LVR for liquidity providers
* Wallets that capture "backrunning" MEV leaked by transactions
Read 7 tweets
Dan Robinson Profile picture
Mar 7, 2024
Introducing the auction-managed AMM!

A new AMM design that:

⚖️ Reduces LVR
⚙️ Optimizes swap fees
📈 Smooths LP returns
🌊 Should attract higher liquidity than any fixed-fee AMM

New paper with @ciamac (@paradigm / @Columbia_Biz) and @AustinAdams10 @saraareynolds (@Uniswap) Image
Two of the most important challenges in AMM research are:

* Minimizing losses to informed flow (i.e. reducing loss-vs-rebalancing)
* Maximizing revenue from uninformed flow (i.e. optimizing fees)

The am-AMM targets both of these problems with one mechanism.
The am-AMM rents the right to manage the pool to the highest bidder, in a continuous auction we call a “Harberger lease,” with rent going to liquidity providers.

The pool manager has the power to set the swap fee, and to receive those fees.
Read 8 tweets
Dan Robinson Profile picture
Jul 17, 2023
Five reasons I think UniswapX changes the game for decentralized exchange, MEV, and interoperability 🧵

https://t.co/dapv2tRxrUuniswap.org/whitepaper-uni…
Image
1. The architecture opens up a vast design space for DEX.

Signed orders (or “intents,” to use the parlance of our times) can be more efficient, more flexible, and ultimately more powerful than transactions.
2. It's a better foundation for orderflow auctions that return MEV to users.

Today's OFAs are usually built on tx-based swaps, which are an awkward fit (generally requiring multiple transactions and extra fees paid onchain).

I think tomorrow's OFAs will be built on UniswapX.
Read 10 tweets
Dan Robinson Profile picture
May 1, 2023
Introducing Blend!

@blur_io wanted a lending protocol with:

* Arbitrary collateral, including NFTs
* No oracles
* No expiries
* Market-set interest rates

So @transmissions11 and I worked with them to design a new mechanism

Here’s how it works 🧵

In Blend, lenders are matched peer-to-peer with borrowers

Lenders sign off-chain offers that specify an interest rate and a collection they're willing to lend against

Borrowers can select the best available offer to instantly borrow against their NFT on-chain
Loans are perpetual by default, with a constant interest rate

If interest rates fall or a borrower wants to leave a position, the borrower can repay at any time (and instantly take a different offer with a better rate, if they want) Image
Read 7 tweets

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