× Welcome to frontrun me, the premier site for visualizing Ethereum gas auctions. These gas auctions are often bids by frontrunners, arbitrageurs, and other programmatic network actors that seek to exploit inefficiencies in on-chain systems, ultimately profiting miners. On this site, we monitor these behaviors on the network in real-time as these bots compete for block priority in rapid-fire all-pay auctions*, showing users and mechanism designers the potential rent-seeking economy created by orderbook inefficiencies on-chain. Timing data is sourced from a global network of 8 nodes peered deeply with Ethereum. Read our full paper!
*Modern auctions are a special kind of all-pay auction, in which the winner of the auction pays some constant percentage of their bid; they do not pay full gas, as they do not pay for execution, but they must pay for attempted execution.

WARNING: THIS IS AN ALPHA VERSION OF THE SITE WITH PRELIMINARY DATA AND KNOWN BUGS. Use at your own risk and follow @ProjectChicago_ for announcements on release and more data being added.

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Individual Real-Time Auction Data


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Note: only auctions with a single detected "winner" (mined with 2+ log events) are displayed in this view. Other auctions may contain multiple sub-auctions, as the split is heuristic.

Gas Auction #658 - 2018-09-24 09:33:35 to 09:34:45; Start Time 1537781615.7864819

Seconds Elapsed Gas Price (gwei) Bidder (Sender Address/Nonce) Gas Limit Transaction Hash Gas Paid Block/Index Mined
0.000 6.399999999 () 0x5a289646BFb958c3158A33b1e4b8a8c254B3B5AA/6038 400000 0xd75bab7b3cf5334002cd25887ebfc40af61025ae53b69c547702eb09776ab6bc
67.082 12.727511000 (66.16136308933041) 0x8bC3da587DeF887B5C822105729ee1D6aF05A5ca/161561 98096 0x6fca26d72b21a75d634b4bbf0ab4fcef17f1c988159bae5f7c86141d203f225b
67.334 12.727510999 (-7.856995763266556e-09) 0x5a289646BFb958c3158A33b1e4b8a8c254B3B5AA/6038 400000 0x9b87d36975df128358482799c2b0dfbf63a8c8354fd5bdbf7a14e3c8ec6e9da6
67.721 6.485575871 (-64.97586952304245) 0x3F2a954e94f4FC65c9f71c049aA5d63eBb7b19b7/6203 800000 0x07879237d7d4b456187b1ff148aaee266e860821f8b1755ae5ee5157c9817f1b
69.522 134.000000000 (181.53383126832796) 0xa8660c8ffD6D578F657B72c0c811284aef0B735e/48972 121000 0xcb29dec57ead8c6b34ce8f4a817248284accba3f2c05eb3428cd58c8294d0ec7
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This material is based upon work supported by the National Science Foundation Graduate Research Fellowship under Grant No. DGE-1650441.
We would also like to thank NSF CNS-1330599, CNS-1514163, CNS-1564102, and CNS-1704615, ARL W911NF-16-1-0145, and IC3 Industry Partners.
Any opinion, findings, and conclusions or recommendations expressed in this material are those of the authors(s) and do not necessarily reflect the views of the National Science Foundation.