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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Tim Roughgarden @Tim_Roughgarden

2 weeks ago

New research center focused on blockchain infrastructure @CUSEAS ! Made possible by @ethereumfndn. Super-excited about this, more to come!

Columbia-Ethereum Research Center @cu_eth_research

2 weeks ago

New research center focused on blockchain infrastructure @CUSEAS ! Made possible by @ethereumfndn. Super-excited about this, more to come!

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IC3 @initc3org

2 months ago

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.

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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

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Sarah Allen @sarahalle_

2 months ago

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

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IC3 @initc3org

4 months ago

"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…

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Ari Juels @AriJuels

5 months ago

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.

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IC3 @initc3org

10 months ago

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…

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IC3 @initc3org

11 months ago

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…

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Ari Juels @AriJuels

2 years ago

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…

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Ari Juels @AriJuels

2 years ago

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…

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Ari Juels @AriJuels

2 years ago

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

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Ari Juels @AriJuels

2 years ago

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.

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IC3 @initc3org

2 years ago

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

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Ari Juels @AriJuels

2 years ago

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…

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IACR @IACR_News

3 years ago

#ePrint Complete Knowledge: Preventing Encumbrance of Cryptographic Secrets: M Kelkar, K Babel, P Daian, J Austgen, V Buterin, A Juels ia.cr/2023/044

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Ari Juels @AriJuels

3 years ago

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….

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Mahimna Kelkar @_mahimna

4 years ago

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.

IC3 @initc3org

4 years ago

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