Can you give a concrete example of an HTTP 402 challenge for a paid resource using published source material?

Archived dispatch

Lowconfidence— no source was read for this question

10/1/2026, 7:40:03 AM · llm:deepseek:deepseek-v4-flash + heuristic (fallback from llm:mimo:mimo-v2.5) on 1 step

§ IIThe reading0 cited

Lowconfidence— no source was read for this questiondeep researchpreview plan 0/1 claimsportfolio 0/0

No supported answer: no source passed the relevance and evidence checks within this run's limits. The planning questions and SKIP reasons show how the request was interpreted. Clarify the subject or intended meaning before starting another paid job. This does not establish that no relevant evidence exists.

Evidence ledger — supporting quotes

What is a concrete example of an HTTP 402 challenge for a paid resource, as described in published source material?
0%
No supporting evidence

Helpful?

Spent$0

To creators—

Decisions0 bought · 0 cached · 25 skipped

llm:deepseek:deepseek-v4-flash + heuristic (fallback from llm:mimo:mimo-v2.5) on 1 steplive on Arc testnet

Decision log · 34 steps

§ IThe decision$0 settled / $0.03

Decompose

Breaking down: "Can you give a concrete example of an HTTP 402 challenge for a paid resource using published source material?"

Decompose

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

Decompose

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

Discover

Discovered 21 verified creator source(s) and 4 free public reference(s)

Discover

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

Discover

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

Pre-check

Claim-aware portfolio selected 0/0 positive proposal(s): 0 cached + 0 fresh, predicting 0/1 claim(s) above the evidence floor with $0.000000/$0.015000 fetch USDC reserved.

Pre-check

Free-preview pre-check found no claim-targeted source worth its toll. No paid fetch will be attempted.

DecideSKIP

Chip Huyen - What I learned from looking at 900 most popular open source AI tools$0 · EV 8%

Weak match (only source); not worth 0 USDC. - free public feed reference; no purchase or creator reward.

DecideSKIP

Cloudflare Workers - Cloudflare OS: an open platform for agents, apps, and work$0 · EV 8%

Weak match (only source); not worth 0 USDC. - free public feed reference; no purchase or creator reward.

DecideSKIP

Lilian Weng - LLM Powered Autonomous Agents$0 · EV 0%

Weak match (no key terms); not worth 0 USDC. - free public feed reference; no purchase or creator reward.

DecideSKIP

Vicki Boykis - NASA Elements of Engineering Excellence$0 · EV 8%

Weak match (only published); not worth 0 USDC. - free public feed reference; no purchase or creator reward.

DecideSKIP

Stablecoin Ledger — Stablecoins as the unit of account for agents$0.003 · EV 8%

Weak match (only give); not worth 0.003 USDC.

DecideSKIP

Agent Economy Weekly — x402 turns HTTP 402 into an agent payment rail$0.004 · EV 15%

Already cached and still relevant (matches http, 402); reuse for free instead of paying again. — cached bytes are free, but this read does not clear the attention gate (EV 0.15, minimum 0.45, with a required claim target).

DecideSKIP

Onchain Micropayments Digest — Nanopayments and the $0.000001 floor$0.005 · EV 0%

Weak match (no key terms); not worth 0.005 USDC.

DecideSKIP

Distributed Systems Notes — Idempotency keys prevent double-spends$0.003 · EV 0%

Weak match (no key terms); not worth 0.003 USDC.

DecideSKIP

Garden & Soil Monthly — Building a no-dig raised bed$0.002 · EV 0%

Weak match (no key terms); not worth 0.002 USDC.

DecideSKIP

Retro Game Hardware — Recapping a 1990s console$0.002 · EV 0%

Weak match (no key terms); not worth 0.002 USDC.

DecideSKIP

Stripe Blog — OUSD is now the default stablecoin on Stripe$0.002 · EV 0%

Weak match (no key terms); not worth 0.002 USDC.

DecideSKIP

Ethereum Foundation Blog — The triage is the product: running AI agents against Ethereum's protocol code$0.002 · EV 0%

Weak match (no key terms); not worth 0.002 USDC.

DecideSKIP

Cointelegraph.com News — Crypto payments barely register among euro area merchants, ECB finds$0.002 · EV 0%

Weak match (no key terms); not worth 0.002 USDC.

DecideSKIP

Latent.Space — Underwriting Superintelligence: Backing Agents you can Sue — Rune Kvist, AIUC$0.004 · EV 0%

Weak match (no key terms); not worth 0.004 USDC.

DecideSKIP

Simon Willison's Weblog — Using Blender with coding agents on macOS$0.003 · EV 8%

Weak match (only using); not worth 0.003 USDC.

DecideSKIP

Hugging Face - Blog — Give Your Coding Agents a Memory You Own$0.003 · EV 8%

Weak match (only give); not worth 0.003 USDC.

DecideSKIP

Vitalik Buterin's website — Low-risk defi can be for Ethereum what search was for Google$0.004 · EV 0%

Weak match (no key terms); not worth 0.004 USDC.

DecideSKIP

The Coinbase Blog - Medium — In response to the Wall Street Journal$0.003 · EV 8%

Weak match (only published); not worth 0.003 USDC.

DecideSKIP

Decrypt — Sony Says You Don't Own the Games You Bought. Crypto Says It Can Fix That$0.002 · EV 0%

Weak match (no key terms); not worth 0.002 USDC.

DecideSKIP

CoinDesk: Bitcoin, Ethereum, Crypto News and Price Data — Crypto Long & Short: Inside the 300-to-1 onchain gap between the dollar and euro$0.002 · EV 0%

Weak match (no key terms); not worth 0.002 USDC.

DecideSKIP

Inner Axiom — The Codex — ISIS: The Godess, From An Esoteric Perspective$0.002 · EV 0%

Weak match (no key terms); not worth 0.002 USDC.

DecideSKIP

Conzit Labs — The Evolution of AI: Open-Source vs. Closed Models$0.002 · EV 15%

Already cached and still relevant (matches challenge, source); reuse for free instead of paying again. — cached bytes are free, but this read does not clear the attention gate (EV 0.15, minimum 0.45, with a required claim target).

DecideSKIP

Arc Settlement Benchmarks — Measuring x402 settlement latency on Arc$0.003 · EV 0%

Weak match (no key terms); not worth 0.003 USDC.

DecideSKIP

Web Payments Review — How long do x402 payments take to finalize?$0.002 · EV 0%

Weak match (no key terms); not worth 0.002 USDC.

DecideSKIP

Keryx Engineering (first-party) — Recovering a Keryx paid research job$0.002 · EV 8%

Weak match (only paid); not worth 0.002 USDC.

Done

Done. Spent $0 across 0 confirmed/simulated payment(s) to creators.

Portable research receipt

Take the evidence trail with you

One deterministic JSON bundle binds the answer, visible decisions, exact article versions, claim evidence and a Circle-settlement snapshot under SHA-256. Retain the digest to detect later changes; the self-check is not a publisher or Keryx signature.

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