Mahimna Kelkar @_mahimna
Cryptography, Blockchain Security | Incoming Assistant Professor @PurdueCS (Fall 2026) | Research Scientist @OffchainLabs | CS PhD @CornellCIS cs.cornell.edu/~mahimna/ Joined November 2019-
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On August 13, IC3 and the Columbia Ethereum Research Center will co-host the Ethereum Research Funding Forum - a day focused on research priorities in Ethereum.
Join us for the Lagrange Science Fair this Thursday, July 31st in anticipation of SBC 2025 (Science of Blockchain Conference)! Hear from top researchers from @Yale, @Stanford, @Cornell, @UCBerkeley, and @Penn on new innovations in blockchain & AI: lu.ma/wpoxatcc
The Agenda for MEV-SBC'25 is live! 📍Aug 7 @ Berkeley This annual workshop highlights MEV research and talks to illuminate a new round of problems for the community to explore in cryptography, mechanism design, data, consensus, incentives, and their intersections
"Defunding NSF means defunding scientists in the U.S. - including those leading crypto innovation." In a new @CoinDesk op-ed, leading American researchers @danboneh, @josephbonneau, @giuliacfanti, @benafisch, @AriJuels, @socrates1024, @FKoushanfar, @dntse, @ciamac, and…
Take My Ape is out! Try it at takemyape.com. Own a Bored Ape for 15 minutes with one Ethereum transaction. Ownership ≠ rental. It means copyright license, access to BAYC spaces, and your address on chain as owner. TMA's goal? To demo the power of Liquefaction.
NEW: IC3 researchers present Liquefaction — a wallet platform that redefines private key control in crypto. Liquefaction allows private key access to be shared, rented, or pooled, supporting multi-user policies around crypto assets without direct on-chain traces. Trusted…
Prof. @ittayeyal, @mskd96, and @_mahimna also evaluate other authentication mechanisms and propose solutions to enhance security, including for India’s largest bank. initc3org.medium.com/improving-digi…
Without decentralization, a DAO is just an AO. But what does decentralization really mean for a DAO? New blog post: The ‘D’ in DAO? We’ve All Been Getting It Wrong. w/ J. Austgen A. Fábrega @sarahalle_ @KushalBabel @_mahimna initc3org.medium.com/the-d-in-dao-w…
Our new paper on DAOs has two main findings: (1) Common ways to measure decentralization today leave DAOs flying blind. A new metric, Voting-Block Entropy (VBE), surfaces key lessons about how to decentralize DAOs. (2) Dark DAOs are practical and a realistic threat. They enable…
Increasingly complex DeFi means increasingly complex MEV risks. Lanturn, led by @KushalBabel and @mojan_jp, uses adaptive learning to get accurate MEV estimates w/o heuristics: eprint.iacr.org/2023/1338.pdf. It has even discovered two interesting new MEV-extraction strategies. 1/5
TEEs / trusted hardware are in theory a perfect complement to blockchains. But security concerns have slowed adoption. The Sting Framework (SF) is a new defensive layer for TEEs and other systems that enforce secrecy. See our blog post initc3org.medium.com/the-sting-fram… or the TLDR below.
New Research！TEEs are a growing part of block-building supply chains in today's #blockchains, but past vulnerabilities raise concerns. IC3's new work The Sting Framework offers powerful protective layer for TEE-based systems and other that needs secrecy. link.medium.com/AMttHrUvzAb
The next iteration of PROF blog post is out. We believe PROF is a simple, promising way to combat harmful MEV and get fair ordering (for your favorite notion of "fair"). We're exploring ways to make it happen. @KushalBabel @iseriohn42 @_mahimna initc3org.medium.com/prof-fair-tran…
#ePrint Complete Knowledge: Preventing Encumbrance of Cryptographic Secrets: M Kelkar, K Babel, P Daian, J Austgen, V Buterin, A Juels ia.cr/2023/044
We introduce new notion in cryptography of *Complete Knowledge* (CK) in blog post and paper released today. @KushalBabel @VitalikButerin @phildaian @_mahimna Blog post: initc3org.medium.com/complete-knowl…. Paper: arijuels.com/wp-content/upl….
This needs to be highlighted. Yes, there is no single notion of "fairness." But the hard truth is that *any* definition proposed so far results in fundamentally better security than existing systems.
This needs to be highlighted. Yes, there is no single notion of "fairness." But the hard truth is that *any* definition proposed so far results in fundamentally better security than existing systems. https://t.co/D3pT48w1FB
New IC3 Blog Post- Order-Fair Consensus: Reducing MEV at the Consensus Layer by @_mahimna This is the first in a series of posts discussing MEV, transaction-order manipulation, and order-fairness. initc3org.medium.com/order-fair-con…
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