{ "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-12T09:31:09Z", "providers": [ "Codex" ], "breadth": "recalled by Codex without web access - no source was read", "missingProviders": [], "pass": 2, "cost": { "grok": { "seconds": 17.1, "error": "Reading additional input from stdin...\nOpenAI Codex v0.153.4\n--------\nworkdir: R:\\02_PROJECTS\\02_Meta_Models_Platforms\\Ver.cy\\current\\thing-registry-backlog\nmodel: gpt-6-astra\nprovider: openai\napproval: never\nsandbox: read-only\nreasoning effort: none\nreasoning summaries: none\nsession id: 01a094f3-b40a-7bf3-b019-69057bfe2a2f\n--------\nuser\nDescribe what is already known about one registered thing. Answer as JSON only, no prose around it.\n\nThing: eponychium\nSense to describe: (none recorded)\nDomain code: PHY.OBJ\nAlso known as: (none)\n\n\nContext for this batch of 1001 things:\n# Batch 043: 1001 regi", "usd": 0.0, "recall": true }, "codex": { "seconds": 76.0, "error": "Reading additional input from stdin...\nOpenAI Codex v0.153.4\n--------\nworkdir: R:\\02_PROJECTS\\02_Meta_Models_Platforms\\Ver.cy\\current\\thing-registry-backlog\nmodel: gpt-6-astra\nprovider: openai\napproval: never\nsandbox: read-only\nreasoning effort: none\nreasoning summaries: none\nsession id: 01a094f3-b3ff-7f40-89db-417e1fc6d367\n--------\nuser\nYou are drafting a Vercy meta-model for one registered thing. Answer as JSON only, no prose around it.\n\nThing: eponychium\nRegistry id: vr.tr.eponychium\nPlane / domain: PHY / PHY.OBJ\nRegistry definition: (none recorded)\nNames folded into this entry: (none)\n\n\nCo" } }, "enrichment": { "pass": 3, "engine": "claude", "producedAt": "2026-10-06T12:00:00Z", "ingestedAt": "2026-10-06T08:51:02+00:00", "fields": [ "agent_conduct", "ethics", "failure_modes_and_hazards", "owners", "visual_identification" ] }, "gate": { "passed": true, "version": "1.0", "at": "2026-10-07T10:10:32+00:00", "evidence": [ "completeness 1.00", "sense: Wikidata description", "2 live sources", "review by codex: pass" ] } }, "metaModel": { "id": "THING-Q788191", "registryId": "vr.tr.eponychium", "name": "eponychium", "version": "0.1.0-research.1", "entryKind": "thing", "family": "Thing Registry", "domain": [ "PHY.OBJ" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q788191/", "model": { "registry_id": "vr.tr.eponychium", "name": "eponychium", "purpose": "Enable an agent to identify an eponychium, record its anatomical relationships and observed condition, and assess whether a proposed interaction requires further examination.", "definition": "The eponychium is the epidermal tissue at the distal margin of the proximal nail fold, whose keratinized extension forms the cuticle over the emerging nail plate.", "scope_statement": "This draft models vr.tr.eponychium in PHY / PHY.OBJ as the epithelium on the ventral surface of the human proximal nail fold associated with cuticle formation; source-specific uses that equate eponychium with cuticle must remain explicit. This working boundary follows [Comparative Anatomy of Mouse and Human Nail Units](https://pmc.ncbi.nlm.nih.gov/articles/PMC3579226/).", "in_scope": [ "Identification of the eponychium at a particular fingernail or toenail", "Distinction between eponychial tissue, the whole proximal nail fold, and adherent cuticle", "Relationships to the proximal nail plate and neighbouring nail-unit structures", "Observed tissue condition and continuity of the associated cuticle interface", "Local exposure, manipulation, and change over time" ], "out_of_scope": [ "The complete anatomy and physiology of the nail unit", "Nail matrix production of the nail plate", "Distal hyponychium and lateral nail folds as independent structures", "Diagnosis and treatment models for paronychia or other nail disorders", "Manicure tools, cosmetic products, and procedural protocols", "Nonhuman structures called eponychium without an established anatomical mapping" ], "distinguishing_features": [ "Locate the tissue beneath the proximal nail fold where the nail plate emerges; tissue beneath the distal free edge belongs to the hyponychium.", "Distinguish epithelium continuous with the proximal fold from the cornified cuticle extending onto the nail plate.", "Require a ventral epithelial boundary before identifying the entire externally visible proximal nail fold as eponychium.", "Distinguish the proximal fold lining from the nail matrix and nail bed through anatomical relationships, rather than treating all tissue near the nail root as equivalent.", "Record the source's meaning of eponychium: some anatomical literature uses it as a synonym for cuticle, including [Nail anatomy](https://pubmed.ncbi.nlm.nih.gov/24079579/)." ], "characteristics": [ { "name": "Anatomical referent", "kind": "category", "unit_or_values": "ventral proximal-fold epithelium | cuticle usage | broader proximal-fold usage | unresolved", "why_it_matters": "Prevents observations about different tissues from being merged under one name." }, { "name": "Digit and laterality", "kind": "relation", "unit_or_values": "person or specimen; left or right; hand or foot; digit 1-5", "why_it_matters": "Locates an instance and supports comparison across visits and digits." }, { "name": "Evidence of tissue identity", "kind": "category", "unit_or_values": "surface inspection | magnified imaging | histology | anatomical description | unresolved", "why_it_matters": "A surface view may show the cuticle and fold without resolving the underlying epithelium." }, { "name": "Observed proximal interface continuity", "kind": "state", "unit_or_values": "apparently continuous | focally interrupted | extensively interrupted | obscured | not assessed", "why_it_matters": "Records the visible interface without asserting that visual continuity proves barrier function." }, { "name": "Local tissue appearance", "kind": "state", "unit_or_values": "separately recorded redness, swelling, fissuring, erosion, bleeding, or no visible change; unknown permitted", "why_it_matters": "Describes local findings without converting them into a diagnosis." }, { "name": "Visible defect extent", "kind": "measurement", "unit_or_values": "mm, with defined endpoints, image scale, and affected tissue", "why_it_matters": "Allows a documented interruption to be compared over time without confusing cuticle loss with epithelial injury." }, { "name": "Local symptoms", "kind": "state", "unit_or_values": "pain or tenderness reported | absent by report | not assessed; onset and location recorded separately", "why_it_matters": "Keeps reported experience separate from what an image demonstrates." }, { "name": "Recent proximal-fold manipulation", "kind": "relation", "unit_or_values": "linked event describing cutting, pushing, picking, chemical exposure, or other contact; time and certainty", "why_it_matters": "Provides context for local changes without assuming causation." } ], "affordances": [ "Locate and annotate the eponychial region on an identified digit while marking uncertain tissue boundaries.", "Reconcile anatomical labels across records without silently equating eponychium, cuticle, and proximal nail fold.", "Record visible proximal nail-interface changes and distinguish observations from reported symptoms.", "Compare matched observations of the same digit over time.", "Identify when a proposed manipulation targets uncertain or potentially living tissue and route the decision for qualified assessment." ], "agent_conduct": { "may": [ "Describe the eponychium and its role in sealing the nail fold.", "Explain hygiene practices for nail care from reputable health sources." ], "must_not": [ "Cut, push or remove the eponychium during a manicure performed by a machine without the client's consent.", "Diagnose nail fold infections or skin disease from images alone.", "Share images of a person's hands that identify them without consent." ], "requires_human": [ "Treating an infected or injured nail fold." ] }, "ethics": { "considerations": [ "Damaging this seal invites painful infection, often from unsafe salon practice.", "Clients trust nail workers with their safety." ], "affected_parties": [ "Salon clients", "Nail technicians", "People with diabetes or poor circulation" ] }, "owners": { "steward": "Nobody: part of a person's body; the person and their clinician answer for its care.", "master_systems": [] }, "visual_identification": [ "The thin skin fold at the base of the nail, ending in the cuticle over the nail plate." ], "failure_modes_and_hazards": [ "Cutting or tearing it can lead to paronychia, an infection of the nail fold.", "Shared tools can spread fungal and bacterial infection." ], "what_it_is_for": [ "The eponychium is encountered at the proximal margin of human fingernails and toenails during anatomical study, nail care and clinical examination.", "Its relationship to the nail fold and cuticle helps describe the protective barrier around the emerging nail plate and local changes in tissue condition." ], "standards_and_regulation": [ "Terminologia Anatomica, issued by the Federative International Programme for Anatomical Terminology, provides standardized terminology for human nail anatomy." ] }, "sources": [ { "id": "wikidata", "title": "Wikidata item Q788191: eponychium", "url": "https://www.wikidata.org/wiki/Q788191", "url_status": "live", "what_it_supports": "identity and sense of the item", "checked_by": "wikidata-api" }, { "id": "wikipedia-en", "title": "Wikipedia: Eponychium", "url": "https://en.wikipedia.org/wiki/Eponychium", "url_status": "live", "what_it_supports": "general description of the item", "checked_by": "wikidata-api sitelink" } ], "structure": { "bundles": [ { "id": "anatomical-identity", "name": "Anatomical identity", "description": "Establish what tissue the entry and each observation call eponychium.", "rationale": "Terminological variation can otherwise attach a cuticle observation to living fold epithelium.", "layers": [ { "id": "term-resolution", "name": "Term resolution", "description": "Preserve the anatomical meaning used by each source.", "findings": [ { "id": "declared-tissue-referent", "name": "Declared tissue referent", "description": "Every imported label needs an explicit mapping to epithelium, cuticle, broader fold, or an unresolved referent.", "questions": [ { "text": "What tissue does this source mean by eponychium?", "kind": "definition", "id": "declared-tissue-referent-q01" }, { "text": "Which passage or labelled anatomical image establishes that meaning?", "kind": "provenance", "id": "declared-tissue-referent-q02" } ] } ] }, { "id": "instance-localization", "name": "Instance localization", "description": "Identify the digit and anatomical landmarks supporting localization.", "findings": [ { "id": "proximal-ventral-location", "name": "Proximal ventral location", "description": "Localization must identify the proximal fold region and distinguish an observed surface from an inferred underlying structure.", "questions": [ { "text": "Which hand or foot, side, and digit contain this eponychium?", "kind": "boundary", "id": "proximal-ventral-location-q01" }, { "text": "Which visible or histological landmarks support its identification beneath the proximal nail fold?", "kind": "definition", "id": "proximal-ventral-location-q02" } ] } ] } ] }, { "id": "fold-cuticle-plate-relationships", "name": "Fold, cuticle, and plate relationships", "description": "Represent the specific tissue interfaces that give the eponychium its anatomical role.", "rationale": "The model must distinguish tissue producing cuticle from the cuticle and nail plate themselves.", "layers": [ { "id": "epithelium-and-cuticle", "name": "Epithelium and cuticle", "description": "Separate the epithelial region from its associated cornified material.", "findings": [ { "id": "cuticle-production-boundary", "name": "Cuticle production boundary", "description": "The working model associates cuticle formation with the ventral proximal-fold epithelium and fold tip; evidence should specify which component is described.", "questions": [ { "text": "Does the evidence concern epithelial tissue, cornified cuticle, or both?", "kind": "boundary", "id": "cuticle-production-boundary-q01" }, { "text": "How does the source attribute cuticle formation to the eponychium and adjacent fold tip?", "kind": "provenance", "id": "cuticle-production-boundary-q02" } ] } ] }, { "id": "neighbouring-nail-structures", "name": "Neighbouring nail structures", "description": "Locate the eponychium relative to structures that need separate models.", "findings": [ { "id": "proximal-interface-map", "name": "Proximal interface map", "description": "A local anatomical map should distinguish the fold lining, adherent cuticle, nail plate, and deeper matrix region.", "questions": [ { "text": "Where does the identified tissue meet the proximal nail plate or associated cuticle?", "kind": "boundary", "id": "proximal-interface-map-q01" }, { "text": "What evidence separates it from the matrix, nail bed, and whole proximal nail fold?", "kind": "boundary", "id": "proximal-interface-map-q02" } ] } ] } ] }, { "id": "proximal-interface-condition", "name": "Proximal interface condition", "description": "Capture local continuity and tissue changes without inferring a diagnosis.", "rationale": "Recognizing the structure is insufficient when an agent must judge its observed state.", "layers": [ { "id": "interface-continuity", "name": "Interface continuity", "description": "Describe the visible cuticle-plate junction and any local disruption.", "findings": [ { "id": "localized-interface-disruption", "name": "Localized interface disruption", "description": "Record apparent gaps with their location and affected tissue; visible appearance alone does not establish functional barrier competence.", "questions": [ { "text": "Is the proximal cuticle-plate interface visibly continuous, interrupted, or obscured?", "kind": "measurement", "id": "localized-interface-disruption-q01" }, { "text": "Does the interruption involve cuticle alone, fold tissue, or an unresolved combination?", "kind": "boundary", "id": "localized-interface-disruption-q02" } ] } ] }, { "id": "local-tissue-and-symptoms", "name": "Local tissue and symptoms", "description": "Separate directly observed changes from symptoms and diagnostic interpretations.", "findings": [ { "id": "localized-condition-record", "name": "Localized condition record", "description": "Changes around the proximal fold require precise localization because the eponychial epithelium may not be directly visible.", "questions": [ { "text": "Which redness, swelling, fissures, erosions, or bleeding are directly observed, and in which tissue?", "kind": "measurement", "id": "localized-condition-record-q01" }, { "text": "What pain or tenderness is reported at this site, and when did it begin?", "kind": "provenance", "id": "localized-condition-record-q02" }, { "text": "Which findings remain observations requiring assessment in a neighbouring clinical model?", "kind": "boundary", "id": "localized-condition-record-q03" } ] } ] } ] }, { "id": "exposure-and-interaction", "name": "Exposure and interaction", "description": "Relate local contact events and proposed actions to the specific proximal nail tissue involved.", "rationale": "An action described as cuticle care may target a different structure under conflicting terminology.", "layers": [ { "id": "contact-history", "name": "Contact history", "description": "Document mechanical and chemical contact at the proximal fold interface.", "findings": [ { "id": "proximal-fold-contact-event", "name": "Proximal-fold contact event", "description": "Contact history should identify the affected tissue, timing, and evidence rather than presuming that an exposure caused a change.", "questions": [ { "text": "What cutting, pushing, picking, product application, or other contact occurred at this nail base?", "kind": "provenance", "id": "proximal-fold-contact-event-q01" }, { "text": "Was the contact with adherent cuticle, proximal-fold tissue, or an uncertain target?", "kind": "boundary", "id": "proximal-fold-contact-event-q02" }, { "text": "How does the contact time relate to the first documented local change?", "kind": "measurement", "id": "proximal-fold-contact-event-q03" } ] } ] }, { "id": "proposed-action-assessment", "name": "Proposed action assessment", "description": "Determine whether the proposed target and action are sufficiently understood.", "findings": [ { "id": "tissue-specific-action-boundary", "name": "Tissue-specific action boundary", "description": "The model supports identifying the target and unresolved risks; procedural authorization and clinical treatment belong to the relevant care model.", "questions": [ { "text": "What exact tissue would the proposed action contact or remove?", "kind": "action", "id": "tissue-specific-action-boundary-q01" }, { "text": "What additional examination is needed if living fold tissue cannot be distinguished from cuticle?", "kind": "action", "id": "tissue-specific-action-boundary-q02" } ] } ] } ] }, { "id": "observation-and-follow-up", "name": "Observation and follow-up", "description": "Make eponychial observations interpretable across methods and time.", "rationale": "Hidden anatomy, surface coverings, and inconsistent views can produce misleading comparisons.", "layers": [ { "id": "visibility-and-method", "name": "Visibility and method", "description": "State what the examination actually resolves at the proximal nail fold.", "findings": [ { "id": "eponychial-observation-limits", "name": "Eponychial observation limits", "description": "An observation must distinguish directly resolved tissue from anatomy inferred beneath the fold.", "questions": [ { "text": "Does the method resolve eponychial epithelium, only the external fold and cuticle, or neither?", "kind": "measurement", "id": "eponychial-observation-limits-q01" }, { "text": "What polish, artificial nail material, debris, lighting, or viewing angle obscures the proximal interface?", "kind": "provenance", "id": "eponychial-observation-limits-q02" } ] } ] }, { "id": "matched-temporal-comparison", "name": "Matched temporal comparison", "description": "Track changes at the same digit and proximal interface.", "findings": [ { "id": "documented-local-change", "name": "Documented local change", "description": "Comparisons should match anatomical location and examination conditions before describing improvement or deterioration.", "questions": [ { "text": "Are the observations from the same digit and equivalent proximal-fold locations?", "kind": "boundary", "id": "documented-local-change-q01" }, { "text": "What change in defect extent, interface continuity, or local symptoms is supported by comparable observations?", "kind": "measurement", "id": "documented-local-change-q02" }, { "text": "What unresolved change requires follow-up examination rather than an inferred recovery or diagnosis?", "kind": "action", "id": "documented-local-change-q03" } ] } ] } ] }, { "id": "evidence-and-external-alignment", "name": "Evidence and external alignment", "description": "What the world already says about this thing, gathered so the model can be checked against it.", "rationale": "A model that cannot be lined up against existing standards, identifiers and practice cannot be adopted by anyone who already uses them.", "layers": [ { "id": "reported-evidence", "name": "Reported evidence", "description": "Findings from the breadth pass, kept separate from the structural claims.", "findings": [ { "id": "evidence-confidence-notes", "name": "Check these first", "description": "Recalled without web access and unsourced; every item is a lead to verify.", "evidence": [ "The intended sense is assumed to be human nail anatomy because no sense was recorded.", "Definitions vary over whether eponychium denotes living distal nail-fold epidermis, its keratinized extension, or the cuticle generally; a publication should state its convention.", "This is recalled knowledge, with no sources consulted or anatomical identifier verified." ], "questions": [ { "id": "evidence-confidence-notes-q01", "text": "Which of these check these first hold for the sense of eponychium this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-real-world-use", "name": "Real-world use", "description": "Recalled without web access and unsourced; every item is a lead to verify.", "evidence": [ "Contributes to the protective seal between the proximal nail fold and nail plate.", "Serves as an anatomical landmark in nail examination, nail surgery and nail care." ], "questions": [ { "id": "evidence-real-world-use-q01", "text": "Which of these real-world use hold for the sense of eponychium this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-failure-modes-and-hazards", "name": "Failure modes and hazards", "description": "Recalled without web access and unsourced; every item is a lead to verify.", "evidence": [ "Trauma or aggressive trimming can disrupt the protective seal around the nail.", "Barrier disruption can facilitate inflammation or infection of the surrounding nail fold, termed paronychia.", "Repeated irritation can damage the cuticle and contribute to chronic nail-fold inflammation." ], "questions": [ { "id": "evidence-failure-modes-and-hazards-q01", "text": "Which of these failure modes and hazards hold for the sense of eponychium this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-neighbours", "name": "Neighbouring kinds and how to tell them apart", "description": "Recalled without web access and unsourced; every item is a lead to verify.", "evidence": [ { "name": "cuticle", "difference": "Strict usage distinguishes the adherent, nonliving keratinized cuticle from the living epidermal tissue of the eponychium; some sources use the terms interchangeably." }, { "name": "proximal nail fold", "difference": "The proximal nail fold is the whole fold of skin covering the nail root; the eponychium is associated with its distal epidermal margin." }, { "name": "hyponychium", "difference": "The hyponychium lies beneath the distal free edge of the nail, whereas the eponychium lies at its proximal emergence." }, { "name": "nail matrix", "difference": "The nail matrix produces the nail plate; the eponychium is part of the proximal protective boundary." }, { "name": "nail plate", "difference": "The nail plate is the hard keratinized nail itself, rather than the tissue bordering its proximal end." } ], "questions": [ { "id": "evidence-neighbours-q01", "text": "Which of these neighbouring kinds and how to tell them apart hold for the sense of eponychium this model covers, and on what evidence?", "kind": "provenance" } ] } ] } ] } ] }, "openQuestions": [ "Which anatomical meaning did the registry intend: ventral proximal-fold epithelium, cuticle, or a broader proximal nail-fold region?", "Should this registry entry cover human anatomy only, or include explicitly mapped homologous structures in other species?", "Which noninvasive examination methods can reliably distinguish eponychial tissue from adjacent fold tissue and cuticle?", "What reference ranges and measurement protocols, if any, support comparisons across digits, ages, and fingernails versus toenails?", "Which evidence-based findings should trigger clinical assessment, and which visible interface features have demonstrated relationships to barrier function?" ], "statistics": { "bundles": 6, "layers": 11, "findings": 14, "questions": 27 } }