Claim

In a 3,587-site dataset from Neolithic China, settlement intensity was increasingly concentrated along terrain-accessible corridors from 5000 to 2500 BCE, but this association weakened from 2500 to 2000 BCE as concentration shifted toward intermediate-accessibility settings.

Type COMPARATIVE · truth-evaluable: yes · status at snapshot: ACTIVE · created seq 16142

35 words; atomic claims are usually under 25a conjunction joins clauses that may be separately evaluablea comma-separated series may list several propositions

Referenced 123 times: checked 2, looked up by assistants 0, viewed 78, shared 43. A count of attention, not evidence.

Topics

Archaeology · 1efd24fe Earth science · 1efd24fe

Assessment

Supported

Score: 0.8758 under ledger-default@0.3.0 at snapshot 27745

3 of 4 review checks done · 1 counted · 2 by the author only

2 independent evidence lineages · review checks 1 of 4 · stability MEDIUM

Main unresolved issue: 3 counted evidence items have no independence review; repeats of one origin may be counted as several coverage:468c2c5d-909c-82b5-ac0c-2fa1b93f8ca8

Not yet independently audited.Evidence reviewed so far supports this claim, but only 1 of 4 review checks has been done.A quoted passage from journals.plos.org was not found on the page when Galedra fetched it.

Why?

Strongest counted support: The study reports stronger corridor concentration through 2500 BCE, followed by weakened association and a shift toward intermediate-accessibility settings. weight 1.800000 evidence

Suppressed as dependent: The quoted passage directly states the earlier accessibility association and its later weakening with a shift toward intermediate-accessibility settings.

Review gaps: qualifiers reviewed, opposing search done, independence reviewed

What would most change this: One independent, direct measurement that contradicts this claim would move it from Supported to Unresolved.

Hide calculation

0.8758 under ledger-default@0.3.0 at snapshot 27745 · state Supported · Review checks: 1 of 4 · stability MEDIUM · 3 sources, 2 independent lineages

Model ledger-default@0.3.0 (the default model, not the answer) · snapshot 27745 · trace sha256:3d40cdc2f0e2e14e7f38e0e84b5d7257e95ef1984630b9a127f1c89dccf05dbc

Last changed at entry seq 25306; nothing logged since has borne on this claim.

How the number was reached

Each counted link is weighed by multiplying the factors the model declares; a factor it does not declare is not shown. Every factor name below links to what that number means.

Link	Working	Weight	Counted as
9a8dbe7c support	relevance DIRECT 2.0 × observation ARCHAEOLOGICAL 0.9 × interpretation 0 steps, 1 − 0.15 × 0 1.000000 × authenticity UNVERIFIED 1.0 × extraction UNVERIFIED 1.0 × provenance INDEPENDENT 1.0 × edition NAMED_OR_UNRELATED 1	1.800000	1.800000
07455bf6 support	relevance WEAK 0.2 × observation DIRECT_TEXT 0.9 × interpretation 1 step, 1 − 0.15 × 1 0.850000 × authenticity UNVERIFIED 1.0 × extraction UNVERIFIED 1.0 × provenance INDEPENDENT 1.0 × edition NAMED_OR_UNRELATED 1	0.153000	0.153000
ed9b26f7 support	relevance DIRECT 2.0 × observation DIRECT_TEXT 0.9 × interpretation 0 steps, 1 − 0.15 × 0 1.000000 × authenticity UNVERIFIED 1.0 × extraction UNVERIFIED 1.0 × provenance INDEPENDENT 1.0 × edition NAMED_OR_UNRELATED 1	1.800000	0.000000 (dependent strongest only, kept 9a8dbe7c)

prior 0.50 → log-odds 0.000000 + 1.953000 (the counted weights) = 1.953000 → probability 0.8758

Under neighbouring settings of the same model: 0.7969 to 0.9268, a spread of 0.1299.

Half-even rounding, six places for weights and four for the probability. The same inputs under the same model reproduce this exactly; that is what the trace hash above is for. How a score is worked out explains every factor, why it is there, and what the model sets it to.

Your view

Registered views

Nobody has registered a view yet.

Registered views are personal belief, not evidence: they never change Galedra's assessment. Affiliations are self-declared and shown only for groups of 5 or more.

Checked as part of

Statements this claim was broken out of. The claim is scored on its own; a statement's reading only counts its claims.

“In a 3,587-site dataset from Neolithic China, settlement intensity was increasingly concentrated along terrain-accessible corridors from 5000 to 2500 BCE,...” · 1 claim · 29 September 2026
“In a 3,587-site dataset from Neolithic China, settlement intensity was increasingly concentrated along terrain-accessible corridors from 5000 to 2500 BCE,...” · 1 claim · 29 September 2026

Evidence for

The study reports stronger corridor concentration through 2500 BCE, followed by weakened association and a shift toward intermediate-accessibility settings.

From Topographic accessibility and proto-urban settlement organization in Neolithic China Read 2026-09-29 Relevance DIRECT Steps 0 Counted
The quoted passage directly states the earlier accessibility association and its later weakening with a shift toward intermediate-accessibility settings.

From Topographic accessibility and proto-urban settlement organization in Neolithic China Read 2026-09-29 Relevance DIRECT Steps 0 Counted
An independent regional study found persistent settlement clustering and later spatial reorganization, broadly consistent with the claim's clustering component but not a direct test of the national accessibility gradient.

From Spatiotemporal evolution and clustering patterns of settlements from the Neolithic to the Bronze Age (9000–3000 BP) in the Songshan Mountain region, China Read 2026-09-29 Relevance WEAK Steps 1 Counted

Independent PLOS One study of 1,975 sites in the Songshan region; its regional scope and different methods limit direct corroboration of the national terrain-accessibility result.

Evidence against

None.

Qualifications

None.

Suppressed as dependent

Evidence	Group	Kept instead
6eddec11		9a8dbe7c

Inferences

Concluded from

None.

Used as a premise in

None.

An inference is interpretation, not evidence: it never changes the assessment of its conclusion. Each premise is a claim with its own evidence.

Threads

None. Threads are for disagreements about how a determination was made — a statement whose figures are not in the passage it rests on, two sources that may share an origin. Something about the world belongs in the evidence above.

Claim edges

None. Edges are stored and displayed; v0.1 does not propagate probability across them.

Review checklist

Review checks: 1 of 4

3 checks by this claim's own author, alongside the independent review above. 1 OPPOSING EVIDENCE SEARCH · 1 QUALIFIER CHECK · 1 EVIDENCE VERIFICATION. A check by the person who recorded a claim does not raise its review coverage.

Check	Done	By
qualifiers reviewed	no
opposing search done	no
independence reviewed	no
primary source reviewed	yes	9a8dbe7c, ed9b26f7

Summary

Supported. The main support is: The study reports stronger corridor concentration through 2500 BCE, followed by weakened association and a shift toward intermediate-accessibility settings. 459c49ea

1 further item repeats the same origin and is not independent evidence. 6eddec11

A search for evidence in the opposing direction found none. adb1d1bd

Review checks: 1 of 4. coverage:468c2c5d-909c-82b5-ac0c-2fa1b93f8ca8

Generated by stub-v0.1; every sentence cites graph ids.

Contribution history

seq	event	detail
16142	APPENDED
16143	ACCEPT	AUTOMATIC_AFTER_VALIDATION
16148	LINK_EVIDENCE	by 1efd24fe (accepted)
16204	TASK_RESULT	by 1efd24fe (accepted)
16240	LINK_EVIDENCE	by 1efd24fe (accepted)

Score trace

{
  "claim": "468c2c5d-909c-82b5-ac0c-2fa1b93f8ca8",
  "links": [
    {
      "link": "30555671-68c5-8e90-9ff6-246c9a8dbe7c",
      "group": null,
      "edition": "NAMED_OR_UNRELATED",
      "evidence": "c614222a-2e63-862c-9a66-55d1459c49ea",
      "direction": "SUPPORT",
      "magnitude": "1.800000",
      "relevance": "DIRECT",
      "extraction": "UNVERIFIED",
      "provenance": "INDEPENDENT",
      "observation": "ARCHAEOLOGICAL",
      "source_type": "PRIMARY_TEXT",
      "authenticity": "UNVERIFIED",
      "audit_confirmed": false,
      "effective_weight": "1.800000",
      "interpretive_steps": 0
    },
    {
      "link": "957f49ba-ee3c-8125-824e-d75107455bf6",
      "group": null,
      "edition": "NAMED_OR_UNRELATED",
      "evidence": "5d1a6620-d2a3-858e-ac25-2b29cd48619d",
      "direction": "SUPPORT",
      "magnitude": "0.153000",
      "relevance": "WEAK",
      "extraction": "UNVERIFIED",
      "provenance": "INDEPENDENT",
      "observation": "DIRECT_TEXT",
      "source_type": "SECONDARY_TEXT",
      "authenticity": "UNVERIFIED",
      "audit_confirmed": false,
      "effective_weight": "0.153000",
      "interpretive_steps": 1
    },
    {
      "kept": "30555671-68c5-8e90-9ff6-246c9a8dbe7c",
      "link": "d0a6a676-9857-87bc-87e9-f23fed9b26f7",
      "group": null,
      "reason": "dependent_strongest_only",
      "edition": "NAMED_OR_UNRELATED",
      "evidence": "05214fd2-c360-8bd9-80ea-830f6eddec11",
      "direction": "SUPPORT",
      "magnitude": "1.800000",
      "relevance": "DIRECT",
      "extraction": "UNVERIFIED",
      "provenance": "INDEPENDENT",
      "observation": "DIRECT_TEXT",
      "source_type": "PRIMARY_TEXT",
      "authenticity": "UNVERIFIED",
      "audit_confirmed": false,
      "effective_weight": "0.000000",
      "interpretive_steps": 0
    }
  ],
  "model": "ledger-default@0.3.0",
  "prior": "0.50",
  "variants": {
    "spread": "0.1299",
    "permissive": "0.9268",
    "conservative": "0.7969"
  },
  "code_hash": "sha256:c61a6fdf35a754a0d7e958df149036a083c0eaeb7d2d2e52704ec32b0c36def7",
  "contested": false,
  "stability": "MEDIUM",
  "claim_type": "COMPARATIVE",
  "config_hash": "sha256:86768038080b8ab5233f1e4b7aba10af05b5bb44caa432095150b90e81209809",
  "probability": "0.8758",
  "provisional": true,
  "evidence_sum": "1.953000",
  "snapshot_seq": 25306,
  "prior_log_odds": "0.000000",
  "support_groups": 2,
  "model_dependent": false,
  "review_coverage": "0.25",
  "truth_evaluable": true,
  "assessment_state": "SUPPORTED",
  "review_checklist": {
    "qualifiers_reviewed": {
      "by": [],
      "ok": false
    },
    "opposing_search_done": {
      "by": [],
      "ok": false
    },
    "independence_reviewed": {
      "by": [],
      "ok": false
    },
    "primary_source_reviewed": {
      "by": [
        "30555671-68c5-8e90-9ff6-246c9a8dbe7c",
        "d0a6a676-9857-87bc-87e9-f23fed9b26f7"
      ],
      "ok": true
    }
  },
  "contradict_groups": 0,
  "rounding_boundary": false,
  "posterior_log_odds": "1.953000",
  "not_applicable_reason": null,
  "independence_unreviewed": 3
}