After reading Keryx Engineering (first-party) on why a source marker alone cannot support a claim, what follow-up question would help test the claim?
10/2/2026, 1:51:38 PM · llm:deepseek:deepseek-v4-flash + heuristic (fallback from llm:mimo:mimo-v2.5) on 1 step
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 does Keryx Engineering (first-party) state about why a source marker alone cannot support a claim?
0%No supporting evidence
What follow-up question would help test the claim that a source marker alone cannot support a claim?
0%No supporting evidence
Research evidence matrix
Compare research claims with cited sources and inspect recorded excerpts. An empty cell means no inspectable excerpt was recorded; it does not establish whether a claim is true, false, or disputed. Coverage and agent confidence are not measured accuracy.
| Research claim | Inspection status |
|---|---|
| What does Keryx Engineering (first-party) state about why a source marker alone cannot support a claim? | No inspectable excerpt recorded |
| What follow-up question would help test the claim that a source marker alone cannot support a claim? | No inspectable excerpt recorded |
Decision log · 62 steps
Breaking down: "After reading Keryx Engineering (first-party) on why a source marker alone cannot support a claim, what follow-up question would help test the claim?"
Identified 2 research target(s) to investigate; these are not established facts
Deep mode: up to 4 paid/cached/public reads plus one bounded gap-expansion pass when needed.
Web search: 3/3 planned queries attempted, 3 succeeded, 24 public page previews, 0 unavailable queries. Snippets are discovery only. Public reads spend no USDC; model and service operating costs remain separate.
Discovered 21 verified creator source(s) and 29 free public reference(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 (exhaustive; bounded selection, not a claim of global optimality) selected 1/1 positive proposal(s): 1 free/cache selections + 0 paid fresh selections, predicting 2/2 claim(s) above the evidence floor with $0.000000/$0.015000 fetch USDC reserved.
Free-preview pre-check maps an actionable source to every sub-claim (2/2); paid reading may proceed within the budget.
Strong topical match on after, reading, keryx, engineering, first, addresses sub-claim 1 & 2; worth the 0 USDC toll. - free public original-page READ selection (not a cache hit); no purchase or creator reward. — selected for the claim-aware evidence portfolio (targets claims 1, 2; 0 fetch USDC, 1 attention slot).
Already cached and still relevant (matches engineering, source); reuse for free instead of paying again. - free public feed reference; no purchase or creator reward. — free-preview expected value 0.12 is below the 0.12 spend floor, so no toll is authorized.
Already cached and still relevant (matches engineering, support); reuse for free instead of paying again. - free public feed reference; no purchase or creator reward. — free-preview expected value 0.12 is below the 0.12 spend floor, so no toll is authorized.
Weak match (no key terms); not worth 0 USDC. - free public feed reference; no purchase or creator reward.
Weak match (no key terms); not worth 0 USDC. - free public feed reference; no purchase or creator reward.
Already cached and still relevant (matches engineering, question); reuse for free instead of paying again. - free public feed reference; no purchase or creator reward. — the free-preview coverage check could not connect this source to any sub-claim, so no toll is authorized.
Strong topical match on support, claim, follow, addresses sub-claim 1 & 2; worth the 0 USDC toll. - free public original-page READ selection (not a cache hit); no purchase or creator reward. — cached bytes are free, but this read does not clear the attention gate (EV 0.18, minimum 0.45, with a required claim target).
Weak match (only support, claim); not worth 0 USDC. - free public original-page READ selection (not a cache hit); no purchase or creator reward.
Weak match (no key terms); not worth 0 USDC. - free public original-page READ selection (not a cache hit); no purchase or creator reward.
Weak match (only claim); not worth 0 USDC. - free public original-page READ selection (not a cache hit); no purchase or creator reward.
Strong topical match on source, support, claim, state, addresses sub-claim 1 & 2; worth the 0 USDC toll. - free public original-page READ selection (not a cache hit); no purchase or creator reward. — cached bytes are free, but this read does not clear the attention gate (EV 0.23, minimum 0.45, with a required claim target).
Strong topical match on claim, question, help, addresses sub-claim 2; worth the 0 USDC toll. - free public original-page READ selection (not a cache hit); no purchase or creator reward. — cached bytes are free, but this read does not clear the attention gate (EV 0.18, minimum 0.45, with a required claim target).
Weak match (only claim); not worth 0 USDC. - free public original-page READ selection (not a cache hit); no purchase or creator reward.
Strong topical match on after, cannot, claim, help, addresses sub-claim 1 & 2; worth the 0 USDC toll. - free public original-page READ selection (not a cache hit); no purchase or creator reward. — cached bytes are free, but this read does not clear the attention gate (EV 0.23, minimum 0.45, with a required claim target).
Weak match (only first, claim); not worth 0 USDC. - free public original-page READ selection (not a cache hit); no purchase or creator reward.
Weak match (no key terms); not worth 0 USDC. - free public original-page READ selection (not a cache hit); no purchase or creator reward.
Weak match (only keryx); not worth 0 USDC. - free public original-page READ selection (not a cache hit); no purchase or creator reward.
Strong topical match on alone, support, follow, addresses sub-claim 1 & 2; worth the 0 USDC toll. - free public original-page READ selection (not a cache hit); no purchase or creator reward. — cached bytes are free, but this read does not clear the attention gate (EV 0.18, minimum 0.45, with a required claim target).
Weak match (only keryx); not worth 0 USDC. - free public original-page READ selection (not a cache hit); no purchase or creator reward.
Weak match (only alone, claim); not worth 0 USDC. - free public original-page READ selection (not a cache hit); no purchase or creator reward.
Weak match (only keryx); not worth 0 USDC. - free public original-page READ selection (not a cache hit); no purchase or creator reward.
Weak match (only support, claim); not worth 0 USDC. - free public original-page READ selection (not a cache hit); no purchase or creator reward.
Weak match (no key terms); not worth 0 USDC. - free public original-page READ selection (not a cache hit); no purchase or creator reward.
Weak match (only first, claim); not worth 0 USDC. - free public original-page READ selection (not a cache hit); no purchase or creator reward.
Strong topical match on reading, support, claim, question, help, addresses sub-claim 1 & 2; worth the 0 USDC toll. - free public original-page READ selection (not a cache hit); no purchase or creator reward. — cached bytes are free, but this read does not clear the attention gate (EV 0.35, minimum 0.45, with a required claim target).
Strong topical match on support, claim, question, addresses sub-claim 1 & 2; worth the 0 USDC toll. - free public original-page READ selection (not a cache hit); no purchase or creator reward. — cached bytes are free, but this read does not clear the attention gate (EV 0.18, minimum 0.45, with a required claim target).
Weak match (only marker, support); not worth 0 USDC. - free public original-page READ selection (not a cache hit); no purchase or creator reward.
Strong topical match on support, claim, question, addresses sub-claim 1 & 2; worth the 0 USDC toll. - free public original-page READ selection (not a cache hit); no purchase or creator reward. — cached bytes are free, but this read does not clear the attention gate (EV 0.18, minimum 0.45, with a required claim target).
Weak match (only claim, question); not worth 0 USDC. - free public original-page READ selection (not a cache hit); no purchase or creator reward.
Weak match (no key terms); not worth 0.003 USDC.
Weak match (no key terms); not worth 0.004 USDC.
Weak match (no key terms); not worth 0.005 USDC.
Weak match (no key terms); not worth 0.003 USDC.
Weak match (no key terms); not worth 0.002 USDC.
Weak match (no key terms); not worth 0.002 USDC.
Weak match (no key terms); not worth 0.002 USDC.
Weak match (no key terms); not worth 0.002 USDC.
Already cached and still relevant (matches after, first); reuse for free instead of paying again. — the free-preview coverage check could not connect this source to any sub-claim, so no toll is authorized.
Weak match (only source); not worth 0.004 USDC.
Weak match (only support); not worth 0.003 USDC.
Weak match (only source); not worth 0.003 USDC.
Weak match (no key terms); not worth 0.004 USDC.
Weak match (no key terms); not worth 0.003 USDC.
Weak match (only after, first); not worth 0.002 USDC.
Already cached and still relevant (matches follow, question, test); reuse for free instead of paying again. — cached bytes are free, but this read does not clear the attention gate (EV 0.18, minimum 0.45, with a required claim target).
Weak match (only reading); not worth 0.002 USDC.
Weak match (only after); not worth 0.002 USDC.
Weak match (no key terms); not worth 0.003 USDC.
Weak match (no key terms); not worth 0.002 USDC.
Already cached and still relevant (matches keryx, engineering, first, party); reuse for free instead of paying again. — cached bytes are free, but this read does not clear the attention gate (EV 0.23, minimum 0.45, with a required claim target).
READ The Archive — cited answers from Keryx - selected original public page, 0 USDC; not a cache hit.
Public page unavailable (article-byte-limit); no evidence admitted. Continuing research.
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.
Carries this dispatch’s question as context — never its answer. The next dispatch is read from sources bought for it.