Claim

Model ledger-default@0.1.0 ledger-strict@0.1.0 ledger-default@0.2.0 ledger-strict@0.2.0 ledger-default@0.3.0 (default) ledger-strict@0.3.0 Snapshot seq

Topics

Chemistry · 1efd24fe Biology · 1efd24fe

Assessment

Why?

Suppressed as dependent: The packet directly identifies ArmA as archaeal-PG-specific and reports its cleavage activity at the cell-division site.

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

What would most change this: One independent, direct measurement that supports this claim would move it from Insufficient evidence to Supported.

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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.

• “ArmA is a glycosyl hydrolase specific for archaeal peptidoglycan, and the study found that it cleaves archaeal cell-wall material at the site of methanogen...” · 1 claim · 29 September 2026

Evidence for

• The abstract identifies ArmA as the first archaeal-PG-specific glycosyl hydrolase and reports its cleavage activity at methanogen division sites.

  From A methanogen hydrolase reveals the structure of archaeal peptidoglycan Read 2026-09-29 Relevance DIRECT Steps 0 Counted

• The packet directly identifies ArmA as archaeal-PG-specific and reports its cleavage activity at the cell-division site.

  From A methanogen hydrolase reveals the structure of archaeal peptidoglycan Read 2026-09-29 Relevance DIRECT Steps 0 Counted

• The primary Nature article directly identifies ArmA as the first glycosyl hydrolase specific for archaeal peptidoglycan and reports its cleavage of archaeal PG at the cell-division site.

  From A methanogen hydrolase reveals the structure of archaeal peptidoglycan Read 2026-09-29 Relevance DIRECT Steps 0 Counted

  The source exactly supports enzyme specificity and division-site cleavage in methanogens.

Evidence against

None.

Qualifications

None.

Suppressed as dependent

Evidence	Group	Kept instead
893dc559		1ae05f8d

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	f59d2736, 1ae05f8d, fd6e0041

Summary

Contribution history

seq	event	detail
20113	APPENDED
20114	ACCEPT	AUTOMATIC_AFTER_VALIDATION
20119	LINK_EVIDENCE	by 1efd24fe (accepted)
20121	TASK_RESULT	by 1efd24fe (accepted)
24323	TASK_RESULT	by 1efd24fe (accepted)

Score trace

{
  "claim": "f7849ae1-1fb5-8380-a5d8-e0f7dd4e9792",
  "links": [
    {
      "link": "6448c0b1-6988-80a7-ad5d-bfdff59d2736",
      "group": null,
      "edition": "NAMED_OR_UNRELATED",
      "evidence": "e2eccd97-7629-8823-9f49-05f6945f36a4",
      "direction": "SUPPORT",
      "magnitude": "0.000000",
      "relevance": "DIRECT",
      "extraction": "UNVERIFIED",
      "provenance": "SELF",
      "observation": "DIRECT_TEXT",
      "source_type": "PRIMARY_TEXT",
      "authenticity": "UNVERIFIED",
      "audit_confirmed": false,
      "effective_weight": "0.000000",
      "interpretive_steps": 0
    },
    {
      "link": "6b042dfe-47e9-848e-8fa0-82451ae05f8d",
      "group": null,
      "edition": "NAMED_OR_UNRELATED",
      "evidence": "2c4f7e02-2304-87ec-a59c-eb297d9f9526",
      "direction": "SUPPORT",
      "magnitude": "0.000000",
      "relevance": "DIRECT",
      "extraction": "UNVERIFIED",
      "provenance": "SELF",
      "observation": "DIRECT_TEXT",
      "source_type": "PRIMARY_TEXT",
      "authenticity": "UNVERIFIED",
      "audit_confirmed": false,
      "effective_weight": "0.000000",
      "interpretive_steps": 0
    },
    {
      "kept": "6b042dfe-47e9-848e-8fa0-82451ae05f8d",
      "link": "7ac09fc4-9886-8c2c-9c74-65ccfd6e0041",
      "group": null,
      "reason": "dependent_strongest_only",
      "edition": "NAMED_OR_UNRELATED",
      "evidence": "3b13db8f-3298-8e35-9cac-d057893dc559",
      "direction": "SUPPORT",
      "magnitude": "0.000000",
      "relevance": "DIRECT",
      "extraction": "UNVERIFIED",
      "provenance": "SELF",
      "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": null,
  "variants": null,
  "code_hash": "sha256:c61a6fdf35a754a0d7e958df149036a083c0eaeb7d2d2e52704ec32b0c36def7",
  "contested": false,
  "stability": null,
  "claim_type": "OBSERVATIONAL",
  "config_hash": "sha256:86768038080b8ab5233f1e4b7aba10af05b5bb44caa432095150b90e81209809",
  "probability": null,
  "provisional": true,
  "evidence_sum": null,
  "snapshot_seq": 24324,
  "prior_log_odds": null,
  "support_groups": 0,
  "model_dependent": false,
  "review_coverage": "0.25",
  "truth_evaluable": true,
  "assessment_state": "INSUFFICIENT_EVIDENCE",
  "review_checklist": {
    "qualifiers_reviewed": {
      "by": [],
      "ok": false
    },
    "opposing_search_done": {
      "by": [],
      "ok": false
    },
    "independence_reviewed": {
      "by": [],
      "ok": false
    },
    "primary_source_reviewed": {
      "by": [
        "6448c0b1-6988-80a7-ad5d-bfdff59d2736",
        "6b042dfe-47e9-848e-8fa0-82451ae05f8d",
        "7ac09fc4-9886-8c2c-9c74-65ccfd6e0041"
      ],
      "ok": true
    }
  },
  "contradict_groups": 0,
  "rounding_boundary": false,
  "posterior_log_odds": null,
  "not_applicable_reason": null,
  "independence_unreviewed": 3
}