Append-only AI overlay records; the canon claim file is never mutated.
Provisionally supportedconfidence: moderate · claude-fable-5-1 · run 2026-09-22-edition-123015 · unreviewed draft
The claim's own admitted records are context only: Croft 1994 found two people reporting no pain with eleven or more examiner-elicited tender points at fixed sites, in a pain-selected subsample (VASO-E082), and the Ballyns introduction notes the syndrome is commonly recognized as 'muscle knots' (VASO-E109). The provisional grade leans, as a disclosed basis, on sibling records attached to other claims: blinded sonographers imaged graded stiff regions at palpation-selected sites in the trapezius (VASO-E087 on VASO-C182; VASO-E090 on VASO-C187) and imaging confirmed 71.5% of one examiner's palpated spots in the calf (VASO-E081 on VASO-C030). The critical report's caution that even the palpable spot is disputed is a provisional record this edition treats as absent.
Provisionally supportedconfidence: moderate · claude-fable-5-1 · run 2026-09-23-edition-015207 · unreviewed draft
The claim's own admitted records are context: Croft 1994 found fixed-site tender points in two people reporting no pain, in a pain-selected subsample (VASO-E082), and a 2011 introduction records that the literature calls the phenomenon 'muscle knots' (VASO-E109). The provisional grade rests, disclosed, on sibling records: blinded sonographers imaged graded stiff regions at palpation-selected sites (VASO-E087 on VASO-C182, VASO-E090 on VASO-C187) and imaging confirmed most palpated spots (VASO-E081 on VASO-C030). Provisional records on this claim are treated as absent. Occurrence is documented in patients; it is not the same as commonness.
Provisionally supportedconfidence: moderate · Gemini 3.8 Flash (Google) — independent check run via gemini-3.8-flash · run 2026-09-30-check-gemini-104542 · unreviewed draft
Numerous clinical studies in the ledger operationalize manual palpation to identify discrete tender nodules in muscle and fascia for experimental inclusion (VASO-E062, VASO-E082, VASO-E109). However, multiple records bearing on this claim are marked provisional (VASO-E012, VASO-E015, VASO-E018) and must be treated as absent, while systematic reviews establish that manual palpation lacks reliability and an objective gold standard (VASO-E011, VASO-E078). The strongest opposing consideration is the peer-reviewed skeptical critique (VASO-E010, Quintner 2015) arguing that discrete myofascial trigger point lesions have never been anatomically or objectively validated.
Well supportedconfidence: moderate · GLM 5.3 Flash (Z.ai, via Venice) — independent check run via z-ai-glm-5-3-flash · run 2026-09-30-check-glm-104542 · unreviewed draft
Multiple instrumented studies built on palpated points report blinded sonographers distinguishing the palpated classes with AUC 0.8-0.9 (E087-E099), biochemistry differs at the points (E006), and endplate noise occurred at all 11 trigger-point sites (E031/E032) — palpated points correspond to physically distinct tissue. The strongest opposing considerations are the reliability critique (E011), Landfald's finding that 28.5% of palpated hard spots were tendinous cores or junctions (E081), and that in Ballyns the examiner selecting sites was unblinded; the modest claim as stated ("can be palpated") still carries these records.
Provisionally supportedconfidence: moderate · GPT-5.6 Sol (OpenAI) — independent check run via gpt-5.6-sol · run 2026-09-30-check-gpt-104542 · unreviewed draft
Multiple studies in the packet classify sites by palpable tenderness and then report instrumented differences among those classifications, which supports the modest proposition that such points can be palpated in at least symptomatic people. The evidence is less direct for the full wording covering muscle and fascia and the subjective intensity “exquisitely.” The strongest opposing consideration is VASO-C030's established examiner-reliability problem, which prevents palpability by one examiner from establishing a stable, observer-independent object.
Provisionally supportedconfidence: moderate · Grok 4.5 (xAI) — independent check run via grok-4.5 · run 2026-09-30-check-grok-104542 · unreviewed draft
Clinical and imaging studies routinely locate discrete tender or stiff foci (Ballyns, Landfald, Shah lineages); Croft 1994 shows examiner-elicited tender points even in some no-pain subjects. E012 (provisional, treated absent) and reliability critiques soften ontological status, yet the bare occurrence of palpable tender points is the working premise of the entire literature. Strongest opposing consideration is poor inter-examiner reliability and absence of a validated reference standard.
Well supportedconfidence: moderate · Opus 5.5 (Anthropic) — independent check run via claude-opus-5-5 · run 2026-09-30-check-opus-104542 · unreviewed draft
The records linked directly to this claim are context only (E082, E109), and its other three links (E012, E015, E018) are provisional and treated as absent. The verdict therefore rests on instrumented records the ledger attaches to C005 and C030, which I disclose. Blinded sonographers found larger stiff areas at palpated trigger-point sites than at palpably normal sites (E090, E091, E096); an independent group's elastography confirmed most palpated hard spots as discrete stiff foci (E081); and needle recordings in two lineages found spontaneous activity at palpated points (E001, E031). So palpation does locate discrete, tender, physically distinct spots in muscle, though no record addresses the fascia half of the claim. Strongest opposing consideration: examiner reliability is not demonstrated (E011, E079), every sample is symptomatic, and nearly 30% of palpated hard spots in Landfald were other structures. The claim holds in the sense that such spots exist, not as a reproducible diagnostic act.
Provisionally supportedconfidence: moderate · claude-opus-5-5 · run 2026-09-30-edition-072251 · unreviewed draft
Its own records are context only: two pain-free people with eleven or more fixed-site tender points in a pain-selected sample (VASO-E082), and a literature colloquialism (VASO-E109). The grade leans, disclosed, on sibling records. Blinded sonography found graded stiff regions at palpated sites (VASO-E087 on VASO-C182; VASO-E090 on VASO-C187), and imaging confirmed most palpated spots (VASO-E081 on VASO-C030). Palpation's unreliability keeps the grade provisional.