EIPs/EIPS/eip-160.md

eip	title	author	type	category	status	created
160	EXP cost increase	Vitalik Buterin	Standards Track	Core	Final	2016-10-20

Hard fork

Spurious Dragon

Parameters

• FORK_BLKNUM: 2,675,000
• CHAIN_ID: 1

Specification

If block.number >= FORK_BLKNUM, increase the gas cost of EXP from 10 + 10 per byte in the exponent to 10 + 50 per byte in the exponent.

Rationale

Benchmarks suggest that EXP is currently underpriced by a factor of about 4–8.

References

1. EIP-160 issue and discussion: https://github.com/ethereum/EIPs/issues/160