× 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 #5666 - 2019-07-06 07:12:34 to 07:13:00; Start Time 1562397154.9323094

Seconds Elapsed Gas Price (gwei) Bidder (Sender Address/Nonce) Gas Limit Transaction Hash Gas Paid Block/Index Mined
0.000 33.333333333 () 0xb70E1aA092E55Cb92FF6a22eb5E6B8ef6B104829/174458 90000 0xbf9a5386e24c43ca67fc2a549197b97bfdadbda32669b5dc929aca6a22d4e07b
0.198 41.000000000 (20.627802691572324) 0xfF1b9745f68F84F036E5e92c920038d895FB701A/56516 650000 0x7b047d1f3d4aca4f226dcc62af88e5d11d18bfd4e257c712548667db576ff700
2.385 5.000500000 (-156.51786393626156) 0x56178a0d5F301bAf6CF3e1Cd53d9863437345Bf9/56543 150000 0x25cd9af42f93c472d3ac6a46c9a43659b84be6de087af2802581b3adea7fd150
2.984 41.000000000 (156.51786393626156) 0xFFA5bFe92B6791DAd23c7837abb790b48C2F8995/4937 650000 0xf4d256e12ee48734f29c57077c6082350c32e2cfe5612444939ff116ad223fa5
5.096 5.000500000 (-156.51786393626156)