Methodology

One row per published signal, full corpus on every download (re-import replaces; upsert on item_id). The leading columns mirror the external-scan contract key for key so the same importer ingests both files; the appended columns carry the signal-native detail, including per-touch direction and editorial reasoning. That per-touch detail plus retained article text is why the download requires an access key. This is a working corpus, not a redistribution channel.

Schema

Column	Type	Definition
item_id	text	The signal's stable UUID; the natural import key.
run_day	date	The signal's editorial date (fallback: creation date). Not constant across the file, unlike the daily scan.
url	text	The source article URL, or the signal's Atlas page when no source is linked.
normalized_url	text	Canonical dedupe form, same normalization as the external scan. May repeat when two signals share one source.
headline	text	The signal title.
source_domain	text	Hostname of the URL, www stripped.
published_on	date	The signal's editorial date (YYYY-MM-DD), when set.
discovered_via	text	Always the literal string atlas_signal.
topic_slug	text	Always null; signals carry lenses, not scan topics.
topic_code	text	Always null.
summary	longtext	The signal's one-paragraph editorial summary.
tags	text	The signal's audience lenses, joined with a semicolon. An open set, like scan tags.
entities	text	Always empty; signals do not track entities.
relevance	number	Significance mapped to a number: high 0.9, medium 0.6, low 0.3. Advisory.
enrich_status	enum	Always done: every signal is fully written up.
fetch_status	enum	Always done: full_text is always present.
fetched_via	enum	Always null.
text_chars	number	Character count of full_text.
full_text	longtext	Composed document, capped at 24,000 characters: title, summary, brief sections, counterpoint, argument-map touches, then SOURCE ARTICLE TEXT with the retained article when one exists.
enriched_by	text	Always null here: signals are human-edited editorial work, not model enrichment. Present to mirror the external-scan shape.
significance	enum	high, medium, or low.
lenses	text	Audience lenses, joined with a semicolon: market, labor, geopolitics, regulatory, capability, society.
origin	enum	manual (curated by hand), pipeline (web discovery), or backfill (the one-time history since ChatGPT, published by hand).
claim_touches	text	Argument-map codes the signal bears on, joined with a semicolon.
touch_details	longtext	JSON array, one entry per touch: {code, direction, reason, statement}. direction is supports, contradicts, or neutral; reason is the editorial why; statement is the touched claim's text.
brief_what_happened	longtext	The development itself, in plain prose.
brief_why_it_matters	longtext	The stakes: what this changes.
brief_whats_contested	longtext	Where reasonable readers still disagree.
counterpoint	longtext	A steelman of the contrary reading.
atlas_url	text	The signal's page on the Atlas.
source_title	text	Title of the underlying article, when one is linked.
evidence_type	enum	What KIND of evidence this is, not what it is about: experiment, statistics, survey, projection, announcement, analysis, or other. Null when unclassified.

Signals export, full corpus

Request access Unlock with an access key

/api/datasets/signals-export · 32 columns · access key required

Every published signal in the same row shape as the external-scan dataset, for a downstream intake that already speaks that schema: discovery metadata, the full editorial writeup composed into full_text, and the signal-native fields appended.

Methodology

Schema

Column	Type	Definition
item_id	text	The signal's stable UUID; the natural import key.
run_day	date	The signal's editorial date (fallback: creation date). Not constant across the file, unlike the daily scan.
url	text	The source article URL, or the signal's Atlas page when no source is linked.
normalized_url	text	Canonical dedupe form, same normalization as the external scan. May repeat when two signals share one source.
headline	text	The signal title.
source_domain	text	Hostname of the URL, www stripped.
published_on	date	The signal's editorial date (YYYY-MM-DD), when set.
discovered_via	text	Always the literal string atlas_signal.
topic_slug	text	Always null; signals carry lenses, not scan topics.
topic_code	text	Always null.
summary	longtext	The signal's one-paragraph editorial summary.
tags	text	The signal's audience lenses, joined with a semicolon. An open set, like scan tags.
entities	text	Always empty; signals do not track entities.
relevance	number	Significance mapped to a number: high 0.9, medium 0.6, low 0.3. Advisory.
enrich_status	enum	Always done: every signal is fully written up.
fetch_status	enum	Always done: full_text is always present.
fetched_via	enum	Always null.
text_chars	number	Character count of full_text.
full_text	longtext	Composed document, capped at 24,000 characters: title, summary, brief sections, counterpoint, argument-map touches, then SOURCE ARTICLE TEXT with the retained article when one exists.
enriched_by	text	Always null here: signals are human-edited editorial work, not model enrichment. Present to mirror the external-scan shape.
significance	enum	high, medium, or low.
lenses	text	Audience lenses, joined with a semicolon: market, labor, geopolitics, regulatory, capability, society.
origin	enum	manual (curated by hand), pipeline (web discovery), or backfill (the one-time history since ChatGPT, published by hand).
claim_touches	text	Argument-map codes the signal bears on, joined with a semicolon.
touch_details	longtext	JSON array, one entry per touch: {code, direction, reason, statement}. direction is supports, contradicts, or neutral; reason is the editorial why; statement is the touched claim's text.
brief_what_happened	longtext	The development itself, in plain prose.
brief_why_it_matters	longtext	The stakes: what this changes.
brief_whats_contested	longtext	Where reasonable readers still disagree.
counterpoint	longtext	A steelman of the contrary reading.
atlas_url	text	The signal's page on the Atlas.
source_title	text	Title of the underlying article, when one is linked.
evidence_type	enum	What KIND of evidence this is, not what it is about: experiment, statistics, survey, projection, announcement, analysis, or other. Null when unclassified.