Quote verification breaks down hardest on the long tail

ClearTrace's fork-simulation sampler can only score a quote's accuracy if it can replay the fill on-chain. For the four highest-volume pairs it samples — WETH/USDC, USDC/USDT, WBTC/USDC, and WETH/USDT — that replay succeeds 87–93% of the time. For PEPETO/USDC, a thinner meme-coin route, it succeeds just 36% of the time: fewer than 4 in 10 sampled quotes could even be checked against what actually filled.

AIB/USDC (78% realized) and DOGEUS/USDC (84%) sit in between. The pattern holds across 4,418 non-baseline samples over 9.4 days: verification quality tracks liquidity, and it's worst exactly where routing complexity — and slippage risk — is highest.

This period in numbers

Base attribution coverage climbs to 85.3%

Up from 79.9% two weeks ago, on the back of forensic contract labeling. Overall coverage across all four chains: 92.3% (Ethereum 95.2%, Arbitrum 86.5%, Optimism 83.8%), 2,282 custom labels in the corpus. Source: dune_attribution, synced 2026-07-01.

1inch: tightest rated quote, lowest slippage among aggregators

Rated quote gap of 0.01 bps, on-chain slippage of 7.02 bps — 3.5 bps below the Uniswap direct-DEX baseline of 10.54 bps. Source: aggregator leaderboard, generated 2026-07-02.

KyberSwap: heaviest RFQ router, widest rated quote gap

Routes 88.3% of $1M-sized trades through off-chain RFQ — the highest share of any rated aggregator — yet posts a 3.52 bps quote gap, the widest of the cohort. Source: aggregator leaderboard, generated 2026-07-02.

5 of 13 tracked aggregators now quote-accuracy rated

1inch, Uniswap, KyberSwap, Odos, and Paraswap have each cleared ≥30 realized fork-simulated samples across a ≥7-day span. The remaining 8 tracked aggregators are still accruing. Source: aggregator leaderboard, generated 2026-07-02.

Explore the full leaderboard, chain-by-chain coverage breakdown, and live attribution data at the ClearTrace dashboard. Methodology notes explain how quote gaps, revert rates, and attribution confidence scores are computed.

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Methodology

ClearTrace · Cross-chain DEX attribution · Data as of 2026-07-02 (quote sampler) / 2026-07-01 (on-chain attribution).
"Realized" = a sampled quote that could be fork-simulated and compared to its actual on-chain fill. Quote-accuracy figures shown are rated (≥30 realized samples, ≥7-day span) unless noted otherwise.
Figures are sourced from on-chain trace data and the ClearTrace live quote sampler — no protocol claims are fabricated.