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Ethereum privacy Frames proposal faces gas-limit mismatch

A Sept. 5 EIP-8141 draft keeps a shared 100,000-gas propagation allowance, but a new benchmark estimates proof verification can exceed 190,628 gas.

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Ethereum is working through an open Frames change that would let some nodes accept privacy transactions beyond a shared validation allowance, while not requiring those transactions to route across the public network, according to CryptoSlate.

The proposal, submitted by contributor AnkushinDaniil, is built around Ethereum’s EIP-8141 design and keeps the current 100,000-gas guarantee as a common floor for propagation, with more capable nodes allowed to accept costlier transactions locally. The change remains under review.

However, a privacy benchmark cited by CryptoSlate finds the proposed public allowance falls short of proof-verification costs. For Tornado Cash and RAILGUN designs studied in the benchmark, an optimized Groth16 proof verifier requires 190,628 gas, with a cryptographic pairing check alone accounting for 181,000 gas, placing the baseline above the 100,000-gas figure.

CryptoSlate also reports the benchmark models minimums of 211,828 gas for a single-note spend and 351,828 gas for an eight-note spend, and that the benchmark author recommends at least 250,000 gas for typical optimized transactions, a level that has not been adopted. The outlet notes accounting methodology differs from a companion draft, but says the verifier’s execution-cost gap is still present.

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