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 2/3 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 Web Payments Review — How long do x402 payments take to finalize? (free) — S1

Reused cached Arc Settlement Benchmarks — Measuring x402 settlement latency on Arc (free) — S2

Sub-claim "How long do x402 payments take to finalize?": 90% covered by S1, S2 — Two sources provide specific timing: S1 states ~15 seconds (Ethereum L1), S2 states ~180ms median (Arc BFT). Both directly answer the question with different contexts. The answer is explicitly supported; no further detail is required by the question.

Coverage is high (0.9) with two direct answers from different contexts. The question is fully answered; no affordable skipped sources are needed.

Final check — "How long do x402 payments take to finalize?": 100% assessed by S1, S2

Final coverage assessment — Both sources directly answer the question about x402 payment finalization times, but they provide different answers based on different contexts (Ethereum L1 vs. Arc). The question asks for a general answer, and both sources are relevant, but they conflict. However, the instruction is to assess coverage based on what the sources explicitly state, not to resolve conflicts. The first source (S1) gives a clear answer of about 15 seconds, and the second (S2) gives a clear answer of roughly 180 milliseconds. Both are supported by their respective sources, so coverage is high for each individually. The sub-claim is fully answered by each source in its own context, so coverage is 1.0, but there is a discrepancy in the answers that is not resolved in the sources. The missing part is not about the time itself, but about reconciling the different times, which is not asked for. Therefore, coverage is 1.0 as the question is explicitly answered by both sources.

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 About 15 seconds on Ethereum L1. vs S2 Roughly 180 milliseconds on Arc testnet. → reported preference: Both are trusted as they describe different network contexts. (The sources provide different finalization times because they refer to different networks (Ethereum L1 vs. Arc testnet). The answer reflects both contexts.)

Verified — S1 supports claim 1 at 100%: “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…”

Verified — S2 supports claim 1 at 100%: “Across thousands of submitBatch calls on Arc testnet, x402 batched settlements finalize in roughly 180 milliseconds (measured median 178ms, …”

Drafted answer citing 2 source(s)

Confidence: Low — 1 source disagreement remains unresolved; coverage scores do not resolve conflicting evidence.

Web Payments Review contributed 50% → reward $0.01

Arc Settlement Benchmarks contributed 50% → reward $0.01

Settled $0.01 citation reward → Web Payments Review (2a9ecd4e-4…)

Settled $0.01 citation reward → Arc Settlement Benchmarks (7c77b015-4…)

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