Claim

In the reported study, the silicon-photonics optoacoustic detector measured high-contrast radial-artery signals at 100 Hz and captured features of the blood-pressure waveform.

Type OBSERVATIONAL · truth-evaluable: yes · status at snapshot: ACTIVE · created seq 15571 · qualifiers {"source_edition":"5ac41d9c-e81d-89e9-9213-91c39ffd7431"}

a conjunction joins clauses that may be separately evaluable

Referenced 104 times: checked 2, looked up by assistants 1, viewed 69, shared 32. A count of attention, not evidence.

Topics

Technology · 1efd24fe Public health · 1efd24fe

Assessment

Supported

Score: 0.8581 under ledger-default@0.3.0 at snapshot 27745

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

1 independent evidence lineage · 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:fce5a169-616e-8c33-872a-3ac60a135717

Not yet independently audited.Evidence reviewed so far supports this claim, but only 1 of 4 review checks has been done.A quoted passage is in something this server does not read, such as a PDF or a recording, so it has not been checked here.

Why?

Strongest counted support: The study reports high-contrast radial-artery optoacoustic measurements at 100 Hz that captured blood-pressure waveform features. weight 1.800000 evidence

Suppressed as dependent: The passage directly reports high-contrast radial-artery measurements at 100 Hz capturing blood-pressure waveform features.

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

0.8581 under ledger-default@0.3.0 at snapshot 27745 · state Supported · Review checks: 1 of 4 · stability MEDIUM · 3 sources, 1 independent lineage

Model ledger-default@0.3.0 (the default model, not the answer) · snapshot 27745 · trace sha256:a54d4d8f2ba2420ac7b9d3a4017755e52dbab58466c213488bbd37eefd5fde4d

Last changed at entry seq 26018; 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
e2bd2f3d 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 632e1a53)
b159a25f qualify	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 (non directional)
632e1a53 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

prior 0.50 → log-odds 0.000000 + 1.800000 (the counted weights) = 1.800000 → probability 0.8581

Under neighbouring settings of the same model: 0.7790 to 0.9121, a spread of 0.1331.

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 the reported study, the silicon-photonics optoacoustic detector measured high-contrast radial-artery signals at 100 Hz and captured features of the...” · 1 claim · 29 September 2026
“A September 2026 Nature Communications study described a single-element silicon-photonics optoacoustic sensor that monitored radial-artery signals and agreed...” · 2 claims · 29 September 2026

Evidence for

The study reports high-contrast radial-artery optoacoustic measurements at 100 Hz that captured blood-pressure waveform features.

From Silicon-photonics optoacoustic sensor for fully wearable blood pressure monitoring Read 2026-09-29 Relevance DIRECT Steps 0 Counted
The passage directly reports high-contrast radial-artery measurements at 100 Hz capturing blood-pressure waveform features.

From Silicon-photonics optoacoustic sensor for fully wearable blood pressure monitoring Read 2026-09-29 Relevance DIRECT Steps 0 Counted

Evidence against

None.

Qualifications

The supplementary response qualifies the detector result: its current blood-pressure calibration is subject-specific, and calibration-free transfer is challenged by inter-subject and within-person variability.

From Supplementary Information: Silicon-photonics optoacoustic sensor for fully wearable blood pressure monitoring Read 2026-09-29 Relevance DIRECT Steps 0 Counted

This preserves the reported 100 Hz radial-artery waveform measurement while limiting claims about general clinical or calibration-free performance.

Suppressed as dependent

Evidence	Group	Kept instead
9ef0107a		632e1a53

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	e2bd2f3d, b159a25f, 632e1a53

Summary

Supported. The main support is: The study reports high-contrast radial-artery optoacoustic measurements at 100 Hz that captured blood-pressure waveform features. e3fb6187

1 further item repeats the same origin and is not independent evidence. 9ef0107a

Qualifier: The supplementary response qualifies the detector result: its current blood-pressure calibration is subject-specific, and calibration-free transfer is challenged by inter-subject and within-person variability. a3d9e232

A search for evidence in the opposing direction found none. cd60a2d2

Review checks: 1 of 4. coverage:fce5a169-616e-8c33-872a-3ac60a135717

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

Contribution history

seq	event	detail
15571	APPENDED
15572	ACCEPT	AUTOMATIC_AFTER_VALIDATION
15583	LINK_EVIDENCE	by 1efd24fe (accepted)
15593	TASK_RESULT	by 1efd24fe (accepted)
15727	LINK_EVIDENCE	by 1efd24fe (accepted)

Score trace

{
  "claim": "fce5a169-616e-8c33-872a-3ac60a135717",
  "links": [
    {
      "kept": "e76c4fcd-f95f-810f-9296-e282632e1a53",
      "link": "18cc2b15-9ba2-8e01-aae5-a840e2bd2f3d",
      "group": null,
      "reason": "dependent_strongest_only",
      "edition": "NAMED_OR_UNRELATED",
      "evidence": "b64979e7-bb91-8c37-aff6-8df09ef0107a",
      "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
    },
    {
      "link": "5cfdffa2-528e-8c19-bf9b-8c93b159a25f",
      "group": null,
      "reason": "non_directional",
      "edition": "NAMED_OR_UNRELATED",
      "evidence": "02a5641c-9d3c-8700-996f-6167a3d9e232",
      "direction": "QUALIFY",
      "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
    },
    {
      "link": "e76c4fcd-f95f-810f-9296-e282632e1a53",
      "group": null,
      "edition": "NAMED_OR_UNRELATED",
      "evidence": "1631bf15-ace7-8705-8fbe-3675e3fb6187",
      "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": "1.800000",
      "interpretive_steps": 0
    }
  ],
  "model": "ledger-default@0.3.0",
  "prior": "0.50",
  "variants": {
    "spread": "0.1331",
    "permissive": "0.9121",
    "conservative": "0.7790"
  },
  "code_hash": "sha256:c61a6fdf35a754a0d7e958df149036a083c0eaeb7d2d2e52704ec32b0c36def7",
  "contested": false,
  "stability": "MEDIUM",
  "claim_type": "OBSERVATIONAL",
  "config_hash": "sha256:86768038080b8ab5233f1e4b7aba10af05b5bb44caa432095150b90e81209809",
  "probability": "0.8581",
  "provisional": true,
  "evidence_sum": "1.800000",
  "snapshot_seq": 26018,
  "prior_log_odds": "0.000000",
  "support_groups": 1,
  "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": [
        "18cc2b15-9ba2-8e01-aae5-a840e2bd2f3d",
        "5cfdffa2-528e-8c19-bf9b-8c93b159a25f",
        "e76c4fcd-f95f-810f-9296-e282632e1a53"
      ],
      "ok": true
    }
  },
  "contradict_groups": 0,
  "rounding_boundary": false,
  "posterior_log_odds": "1.800000",
  "not_applicable_reason": null,
  "independence_unreviewed": 3
}