Back to HomeDecimals 0 Deployer 0x000000...691c04 Deployment Block 4,292,844 Deployment Date Sep 20, 2017, 12:03 AM Code Size Unknown
Deployed September 20, 2017 (8 years ago)Block 4,292,844
A gas token storage contract minted by GasToken2 (GST2). Holds a single SSTORE slot consumed when freed to recover gas.
Token Information
Key Facts
Description
These contracts are the on-chain storage units minted by GasToken2 (GST2, deployed at 0x0000000000b3F879cb30FE243b4Dfee438691c04). The GST2 gas token standard worked by storing EVM state during low-gas periods using SSTORE opcodes, then reclaiming the gas refund by zeroing that storage via SELFDESTRUCT when gas prices were high. Over 1.28 million such child contracts were minted by the GST2 factory, making it the second-largest bytecode family in Ethereum history. The gas token mechanism became obsolete after EIP-3529 (London fork, 2021) removed SELFDESTRUCT gas refunds.
Bytecode Overview
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Unique Opcodes0
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Storage Operations0