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4,299,418 works, Canadian by any of four routes.

Every filter state is a URL; the URL is the query; the query is citable via /q/⟨hash⟩. The page, the API and the export parse the same parameters.

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The current cohort, streamed from the database: every work column, the machine labels, the provisional scores, and the per-row validation status. Exports are capped at 100,000 rows. Mints a permanent /q/ link for this exact query. The same filters always produce the same link, whoever asks.

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Cephalalgia
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Retraction
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Direct Codex and Gemma labels are unvalidated and sparse. Distilled predictions cover the full frame and are also unvalidated. Choose the evidence source explicitly; absence of a direct label is never a negative label.

affaffiliation
fundfunder
venuejournal
aboutaboutness

The four routes compose: require the funder route and exclude affiliation to get the funder-only stratum no affiliation-based frame ever sees.

132 results · 1 filter active ·
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20002025
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Machine labels · sparse coverage
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An unlabeled work is unknown, not a negative. Label coverage is reported on every query.
132 works in the cohort · of 4,299,418page 3 of 3

Labels cover 0 of 132 works in this cohort. The rest are unlabeled, which is not a negative label: the label table is sparse today and grows as labeling rounds land.

Distilled predictions cover 132 of 132 works in this cohort. Predictions are machine_predicted_unvalidated teacher distillation outputs. Candidate is the union; consensus is the intersection.

affno abstractunlabeled
Book Review: Headache in Primary Care
Werner J. Becker
2001· article· en· Cephalalgia· Medicine
distilled prediction:candidate · insufficient_payloadconsensus · none
5
citations
affaboutno abstractunlabeled
Medication Overuse Headache in Canada
WJ Becker, R. Allan Purdy
2008· review· en· Cephalalgia· Medicine
distilled prediction:candidate · metaepi_narrowconsensus · none
5
citations
afffundaboutunlabeled
Post-traumatic headache phenotypes and clinical characteristics
Achelle Cortel‐LeBlanc, Miguel Cortel-LeBlanc, Kitty Chen, Henrik Winther Schytz, Kaelan Jolliffe, Andrew B. Dodd +3 more
2025· article· en· Cephalalgia· Medicine
distilled prediction:candidate · noneconsensus · none
2
citations
aboutno affunlabeled
Food insecurity and migraine
Pamela M. Rist, Tobias Kurth
2015· editorial· en· Cephalalgia· Medicine
distilled prediction:candidate · metaepi_narrowconsensus · none
1
citations
affno abstractunlabeled
Author's Response
NC Low
2008· article· en· Cephalalgia· Engineering
distilled prediction:candidate · insufficient_payloadconsensus · insufficient_payload
1
citations
affno abstractunlabeled
Board Walk – October 2012
R. Allan Purdy, Norihiro Suzuki
2012· article· en· Cephalalgia· Economics, Econometrics and Finance
distilled prediction:candidate · insufficient_payloadconsensus · insufficient_payload
0
citations
affno abstractunlabeled
Reply to Dr. Merry’s Letter to the Editor
Esma Dilli, David W. Dodick
2015· letter· en· Cephalalgia· Medicine
distilled prediction:candidate · metaepi_narrow+insufficient_payloadconsensus · none
0
citations
affno abstractunlabeled
Book Review: Handbook of Headache
R. Allan Purdy
2002· article· en· Cephalalgia· Medicine
distilled prediction:candidate · insufficient_payloadconsensus · none
0
citations
affunlabeled
Intolerance to topiramate in migraine
Jeff Donat
2014· letter· en· Cephalalgia· Medicine
distilled prediction:candidate · metaepi_narrow+insufficient_payloadconsensus · none
0
citations
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