Breaking down: "How long do x402 payments take to finalize?"

Identified 1 research target(s) to investigate; these are not established facts

Deep mode: up to 4 paid/cached reads plus one bounded gap-expansion pass when needed.

Discovered 21 verified source(s)

Recalled 60 past runs on this subject — how these sources performed when they were available.

ERC-8004 reputation loaded — composite scores on this subject.

Claim-aware portfolio selected 2/4 positive proposal(s): 2 cached + 0 fresh, predicting 1/1 claim(s) above the evidence floor with $0.000000/$0.020000 fetch USDC reserved.

Free-preview pre-check maps an actionable source to every sub-claim (1/1); paid reading may proceed within the budget.

Agent spend wallet ready: 0x29028Fe1122E17Fe7863A22701e863FE4DaE1aFB (balance sufficient)

Reused cached Arc Settlement Benchmarks — Measuring x402 settlement latency on Arc (free) — S1

Reused cached Web Payments Review — How long do x402 payments take to finalize? (free) — S2

Sub-claim "How long do x402 payments take to finalize?": 80% covered by S1, S2 — Two sources provide conflicting but direct answers: S1 states ~180ms (median 178ms) on Arc testnet with batched settlement, while S2 states ~15 seconds, similar to Ethereum L1 block time. Both directly address the question, but the discrepancy leaves uncertainty about which scenario applies to typical use. Coverage is high because the core timing data is present, though context about which is more general or how they reconcile is missing.

Coverage is adequate (0.8) for the sub-claim, as two sources provide specific finality times. The conflicting values suggest context (e.g., network or settlement method) is needed, but buying a source may not resolve this without clarity on which scenario is primary. Remaining budget is low (0.02), and no skipped source previews indicate direct resolution of the conflict or additional timing details.

Final check — "How long do x402 payments take to finalize?": 60% assessed by S1, S2

Final coverage assessment — The sub-claim asks for the finalization time of x402 payments. Two sources provide conflicting information: S1 states ~180ms median finality on Arc testnet, while S2 states ~15 seconds similar to Ethereum L1. The sources disagree on the answer, so the claim is partially supported with conflicting evidence. The exact finalization time is not definitively established.

Synthesizing a grounded answer from 2 source(s)…

Relevance review returned; only checked excerpts can retain support, and review cannot raise it.

⚖️ Sources disagreed on Finalization time for x402 payments — S1 Finalization is sub-second (roughly 180ms) on the Arc testnet for Gateway-batched payments. vs S2 Finalization takes about 15 seconds, similar to an Ethereum L1 block time. → trusted S1 (The S1 source provides specific, measured benchmark data (median 178ms, p95 240ms) from thousands of actual testnet calls, making it more authoritative for the described context. The S2 source appears to describe a general or different implementation scenario.)

Verified — S1 supports claim 1 at 90%: “Across thousands of submitBatch calls on Arc testnet, x402 batched settlements finalize in roughly 180 milliseconds (measured median 178ms, …”

Verified — S2 supports claim 1 at 90%: “In our reading, an x402 payment takes about 15 seconds to settle, similar to an Ethereum L1 block time, because each payment is its own tran…”

Drafted answer citing 2 source(s)

Confidence: Moderate — 2 evidence-verified sources cover every sub-claim, but corroboration or support strength is limited, 1 disagreement adjudicated.

Arc Settlement Benchmarks contributed 50% → reward $0.01

Web Payments Review contributed 50% → reward $0.01

Settled $0.01 citation reward → Arc Settlement Benchmarks (f43918ed-3…)

Settled $0.01 citation reward → Web Payments Review (59bc7914-5…)

Done. Spent $0.02 across 2 confirmed/simulated payment(s) to creators.