Claim

The 2026 report screened more than 60,000 Bianfu Cave bone fragments, selected 76 for ZooMS and 17 for proteomics, and identified three Denisovan bone fragments from layers dated approximately 167–134 thousand years ago; proteomics also confirmed two excavated teeth as Denisovan, whereas endogenous ancient-DNA recovery from the three bones failed.

Type HISTORICAL · truth-evaluable: yes · status at snapshot: ACTIVE · created seq 25484

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

Referenced 87 times: checked 0, looked up by assistants 0, viewed 87, shared 0. A count of attention, not evidence.

Topics

Not filed under any topic yet.

Assessment

Supported

Score: 0.9955 under ledger-default@0.3.0 at snapshot 27745

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

3 independent evidence lineages · review checks 1 of 4 · stability HIGH

Main unresolved issue: 3 counted evidence items have no independence review; repeats of one origin may be counted as several coverage:677b91ea-9fa0-8ed8-ba0f-27d37800896d

Not yet independently audited.Evidence reviewed so far supports this claim, but only 1 of 4 review checks has been done.

Related: NARROWS outgoing: Supported

Why?

Strongest counted support: The study screened over 60,000 fragments and selected 76 for ZooMS and 17 for proteomic sequencing. weight 1.800000 evidence

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 Supported.

Hide calculation

0.9955 under ledger-default@0.3.0 at snapshot 27745 · state Supported · Review checks: 1 of 4 · stability HIGH · 3 sources, 3 independent lineages

Model ledger-default@0.3.0 (the default model, not the answer) · snapshot 27745 · trace sha256:d4b96ee284f037a218d870ef499c8e44df7d519be78c460fb14d662e0db86b19

Last changed at entry seq 25491; 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
8a9aaed8 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
e6896ba9 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	1.800000
c1e20bd9 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

prior 0.50 → log-odds 0.000000 + 5.400000 (the counted weights) = 5.400000 → probability 0.9955

Under neighbouring settings of the same model: 0.9777 to 0.9991, a spread of 0.0214.

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.

Evidence for

The study screened over 60,000 fragments and selected 76 for ZooMS and 17 for proteomic sequencing.

From Ancient proteins identify various Denisovan remains from Southwest China Read 2026-09-29 Relevance DIRECT Steps 0 Counted
Three bone fossils dated approximately 167–134 thousand years ago and two teeth were confirmed Denisovan by proteomics.

From Ancient proteins identify various Denisovan remains from Southwest China Read 2026-09-29 Relevance DIRECT Steps 0 Counted
Endogenous ancient-DNA recovery failed for the three newly identified hominin samples.

From Ancient proteins identify various Denisovan remains from Southwest China Read 2026-09-29 Relevance DIRECT Steps 0 Counted

Evidence against

None.

Qualifications

None.

Suppressed as dependent

None.

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

From	Relationship	To
7800896d	NARROWS	86e78bd6

Review checklist

Review checks: 1 of 4

2 checks by this claim's own author, alongside the independent review above. 1 OPPOSING EVIDENCE SEARCH · 1 QUALIFIER CHECK. 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	8a9aaed8, e6896ba9, c1e20bd9

Summary

Supported. The main support is: The study screened over 60,000 fragments and selected 76 for ZooMS and 17 for proteomic sequencing. 34dec3e9

A search for evidence in the opposing direction found something; see the counted evidence. ec1fb409

Review checks: 1 of 4. coverage:677b91ea-9fa0-8ed8-ba0f-27d37800896d

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

Contribution history

seq	event	detail
25484	APPENDED
25485	ACCEPT	AUTOMATIC_AFTER_VALIDATION
25490	TASK_RESULT	by 1efd24fe (accepted)

Score trace

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  "links": [
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      "link": "544edcb0-c76e-8dea-a267-65158a9aaed8",
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      "relevance": "DIRECT",
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      "audit_confirmed": false,
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    },
    {
      "link": "fdfef592-a903-8140-ac51-10fbc1e20bd9",
      "group": null,
      "edition": "NAMED_OR_UNRELATED",
      "evidence": "c90f5737-819a-8aec-8640-7eb468b29de0",
      "direction": "SUPPORT",
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      "relevance": "DIRECT",
      "extraction": "UNVERIFIED",
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  ],
  "model": "ledger-default@0.3.0",
  "prior": "0.50",
  "variants": {
    "spread": "0.0214",
    "permissive": "0.9991",
    "conservative": "0.9777"
  },
  "code_hash": "sha256:c61a6fdf35a754a0d7e958df149036a083c0eaeb7d2d2e52704ec32b0c36def7",
  "contested": false,
  "stability": "HIGH",
  "claim_type": "HISTORICAL",
  "config_hash": "sha256:86768038080b8ab5233f1e4b7aba10af05b5bb44caa432095150b90e81209809",
  "probability": "0.9955",
  "provisional": true,
  "evidence_sum": "5.400000",
  "snapshot_seq": 25491,
  "prior_log_odds": "0.000000",
  "support_groups": 3,
  "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": {
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      "ok": false
    },
    "primary_source_reviewed": {
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        "fdfef592-a903-8140-ac51-10fbc1e20bd9"
      ],
      "ok": true
    }
  },
  "contradict_groups": 0,
  "rounding_boundary": false,
  "posterior_log_odds": "5.400000",
  "not_applicable_reason": null,
  "independence_unreviewed": 3
}