{ "model": { "rank": 15376, "code": "thing-q1121544", "model_id": "vr.tr.ossification", "name": "ossification", "purpose": "Let an agent explain ossification and its types, relay the biology of bone formation, growth and remodeling from physiological sources, describe abnormal ossification in general terms, and distinguish ossification from calcification.", "family": "Thing Registry", "category": "Activities and processes", "status": "research-draft", "kind": "thing", "plane": "ACT", "domain": "ACT.PRC", "industry": "", "version": "", "url": "/models/thing/q1121544/", "tier": 2, "score": 34, "payload": { "layer": "wikidata", "aliases": [ "ossification involved in bone remodeling", "ossification involved in bone maturation", "replacement ossification", "ligamentous ossification", "intratendonous ossification", "direct ossification" ], "aliasCount": 6, "merged": 6, "knownIn": 34, "facets": null, "markers": [], "lexicalClass": "", "senseRank": null, "alsoRegisteredAs": "vr.tr.ossification-process", "source": { "dataset": "wikidata", "item": "Q1121544", "url": "https://www.wikidata.org/wiki/Q1121544", "license": "CC0 1.0" } }, "research": { "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-13T03:32:00Z", "providers": [ "Claude" ], "breadth": "written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify", "pass": 2, "wave": 3, "engine": "claude" }, "metaModel": { "id": "THING-Q1121544", "registryId": "vr.tr.ossification", "name": "ossification", "version": "0.2.0-wave.3", "entryKind": "thing", "family": "Thing Registry", "domain": [ "ACT.PRC" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q1121544/", "model": { "registry_id": "vr.tr.ossification", "name": "ossification", "purpose": "Let an agent explain ossification and its types, relay the biology of bone formation, growth and remodeling from physiological sources, describe abnormal ossification in general terms, and distinguish ossification from calcification.", "definition": "The process of bone formation, in which osteoblasts lay down bone matrix that mineralises, occurring during development as intramembranous or direct ossification that forms bone within membranes, and endochondral or replacement ossification that replaces a cartilage model, continuing through growth and maturation and throughout life in bone remodeling and fracture repair, and abnormally in heterotopic forms such as ligamentous and intratendonous ossification; ossification is regulated by hormones, growth factors and mechanical load.", "what_it_is_for": "Not applicable; a biological process.", "affordances": [ "explain types and mechanism", "relay growth and remodeling", "describe abnormal ossification", "distinguish from calcification" ], "distinguishing_features": [ "Osteoblast activity", "Two developmental modes", "Lifelong remodeling", "Heterotopic forms" ], "appearance": "Not a visible object; bone forming in tissue seen on imaging and histology.", "visual_identification": [ "Bone formation by osteoblasts", "Intramembranous and endochondral ossification; remodeling and maturation; ligamentous and tendon ossification", "Calcification deposits mineral without bone structure; osteogenesis is a synonym in some usage" ], "physical_properties": [ { "quantity": "ossification centres in a newborn", "typical_range": "about 300", "unit": "count", "note": "bones fuse to 206" }, { "quantity": "growth plate closure", "typical_range": "about 14-25", "unit": "years", "note": "varies by bone and sex" } ], "families_and_kinds": [ "intramembranous or direct ossification", "endochondral or replacement ossification", "ossification involved in bone maturation", "ossification involved in bone remodeling", "fracture repair ossification", "heterotopic ossification including ligamentous and intratendonous ossification" ], "related_models": [ { "relation": "is a kind of", "target": "multicellular organismal process", "why": "in registry terms" }, { "relation": "is carried out by", "target": "osteoblast", "why": "cells" }, { "relation": "forms", "target": "bone", "why": "tissue" }, { "relation": "is contrasted with", "target": "calcification", "why": "which lacks bone structure" } ], "identifiers": [ { "scheme": "GO", "value_or_pattern": "GO:0001503", "note": "ossification" }, { "scheme": "MeSH", "value_or_pattern": "D010012", "note": "osteogenesis" } ], "standards_and_regulation": [ "No regulation; Gene Ontology and anatomical definitions", "Clinical guidelines on heterotopic ossification and growth disorders" ], "failure_modes_and_hazards": [ "Confusing ossification with calcification", "Agents giving personal medical advice", "Oversimplifying growth plate biology" ], "in_scope": [], "out_of_scope": [], "characteristics": [] }, "sources": [], "structure": { "bundles": [ { "id": "understand", "name": "Understand", "description": "What ossification is.", "rationale": "Science.", "layers": [ { "id": "definition", "name": "Definition", "description": "Definition and types.", "findings": [ { "id": "definition-finding", "name": "Definition", "description": "Definition.", "questions": [ { "text": "What is ossification, and how do intramembranous and endochondral ossification differ?", "kind": "definition" }, { "text": "Is the question about ossification or calcification?", "kind": "boundary" } ] } ] }, { "id": "cells", "name": "Cells", "description": "Cells and matrix.", "findings": [ { "id": "cells-finding", "name": "Cells", "description": "Cells.", "questions": [ { "text": "How do osteoblasts, osteoclasts and osteocytes build, mineralise and remodel bone?", "kind": "definition" }, { "text": "Which entry fits the specific cell type?", "kind": "action" } ] } ] } ] }, { "id": "lifespan", "name": "Lifespan", "description": "Growth and remodeling.", "rationale": "Science.", "layers": [ { "id": "growth", "name": "Growth", "description": "Growth and maturation.", "findings": [ { "id": "growth-finding", "name": "Growth", "description": "Growth.", "questions": [ { "text": "How do ossification centres and growth plates drive bone growth and maturation?", "kind": "provenance" }, { "text": "Which references are standard?", "kind": "provenance" } ] } ] }, { "id": "remodeling", "name": "Remodeling", "description": "Remodeling and repair.", "findings": [ { "id": "remodeling-finding", "name": "Remodeling", "description": "Remodeling.", "questions": [ { "text": "How does ossification continue in bone remodeling and fracture healing?", "kind": "provenance" }, { "text": "Which entry fits bone remodeling?", "kind": "action" } ] } ] } ] }, { "id": "clinical", "name": "Clinical", "description": "Abnormal ossification.", "rationale": "Clinical.", "layers": [ { "id": "heterotopic", "name": "Heterotopic", "description": "Heterotopic ossification.", "findings": [ { "id": "heterotopic-finding", "name": "Heterotopic", "description": "Heterotopic.", "questions": [ { "text": "What are ligamentous, intratendonous and other heterotopic ossifications, in general terms?", "kind": "provenance" }, { "text": "Is the user asking about their own condition, which needs a clinician?", "kind": "boundary" } ] } ] }, { "id": "disorders", "name": "Disorders", "description": "Disorders.", "findings": [ { "id": "disorders-finding", "name": "Disorders", "description": "Disorders.", "questions": [ { "text": "What disorders such as rickets, osteogenesis imperfecta and fibrodysplasia ossificans progressiva affect ossification?", "kind": "provenance" }, { "text": "Which sources are cited?", "kind": "provenance" } ] } ] } ] }, { "id": "context", "name": "Context", "description": "Regulation and history.", "rationale": "Context.", "layers": [ { "id": "regulation", "name": "Regulation", "description": "Regulation.", "findings": [ { "id": "regulation-finding", "name": "Regulation", "description": "Regulation.", "questions": [ { "text": "How do hormones, vitamin D, growth factors and mechanical load regulate ossification?", "kind": "provenance" }, { "text": "Which entry fits bone physiology?", "kind": "action" } ] } ] }, { "id": "history", "name": "History", "description": "History.", "findings": [ { "id": "history-finding", "name": "History", "description": "History.", "questions": [ { "text": "How was bone formation understood historically, and how is it studied today?", "kind": "provenance" }, { "text": "Which entry fits the history of histology?", "kind": "action" } ] } ] } ] } ] }, "openQuestions": [ "Should endochondral ossification and heterotopic ossification be separate primary entries?", "How should physiological references be linked?", "The registry entry has merged aliases naming Gene Ontology subprocesses; should they be split off?" ], "statistics": { "bundles": 4, "layers": 8, "findings": 8, "questions": 16 } }, "draft": { "generator": "vr.draft.v3", "status": "draft-generated", "researched": false, "archetype": "abstract concept", "method": "Written from the archetype playbook - what this kind of thing needs beyond identity and provenance - and from the structure that recurred across 6,333 models already researched by two engines. Applied to this entry by rule. No source was read for this thing and no claim here is researched. This entry carries no facets of its own, so they were inferred from its domain - a guess about a whole domain applied to one thing.", "facetsInferred": true, "nextPass": "A researcher replaces this draft with a sourced specification. Treat every sentence below as a proposal to argue with.", "purpose": "Give an agent a durable, checkable way to recognise a ossification, record what state it is in, and decide what may be done with it.", "whatItIs": "Let an agent explain ossification and its types, relay the biology of bone formation, growth and remodeling from physiological sources, describe abnormal ossification in general terms, and distinguish ossification from calcification.", "characteristics": { "substance": "activity", "origin": "conceptual", "agency": "inert" }, "whatYouCanDoWithIt": [ "observed and measured" ], "distinguishingFeatures": [ "Names folded into this entry, which a task may need to split apart again: ossification involved in bone remodeling, ossification involved in bone maturation, replacement ossification, ligamentous ossification, intratendonous ossification, direct ossification.", "6 finer distinctions are held as aliases rather than separate entries, because telling them apart needs a task that asks for it.", "Described in 34 Wikipedia languages, which is a measure of how widely the thing is known, not of how important it is." ], "openQuestionsForResearch": [ "Which of the bundles below does a real task actually need, and which are ceremony?", "What does this thing have that the facets do not capture at all?", "Which neighbouring kind is most often confused with a ossification, and on what evidence are they told apart?" ], "whatItIsMadeOf": "something that happens over time", "physicalCharacter": [ "Does nothing on its own; everything it does, something else did to it.", "These come from the domain this entry sits in rather than from the entry itself, so treat them as a first guess about the whole domain applied to one thing." ], "whatCanBeDoneWithIt": [ "observe it, measure it, record its state" ], "howItIsRecognised": [ "Nothing to see. What is recognised is an instance of it, and which instances count is exactly what is argued about." ], "relatedModels": [ { "relation": "covers", "note": "Finer kinds folded into this entry because telling them apart needs a task that asks for it. Each is a model waiting to be split out when one does.", "targets": [ "ossification involved in bone remodeling", "ossification involved in bone maturation", "replacement ossification", "ligamentous ossification", "intratendonous ossification", "direct ossification" ] } ], "standing": "Described in 34 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is. 6 finer distinctions are held inside this entry as names rather than as separate models.", "structure": { "bundles": [ { "id": "identity-and-classification", "name": "Identity, naming and classification", "description": "How an agent tells one ossification from another, and a ossification from things that resemble it.", "rationale": "Recognition comes before every other claim. Without stable identity nothing else in the model can be trusted to be about the same thing twice.", "layers": [ { "id": "naming-and-identifiers", "name": "Names and identifiers", "description": "The names this thing goes by and the identifiers that survive translation and time.", "findings": [ { "id": "preferred-name-and-aliases", "name": "Preferred name, aliases and local names", "description": "Which name to use, which names mean the same thing, and which merely sound similar.", "questions": [ { "id": "preferred-name-and-aliases-q01", "text": "What identifies and describes the name of a ossification, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "preferred-name-and-aliases-q02", "text": "Who or what asserted this about the name of a ossification, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "preferred-name-and-aliases-q03", "text": "What may an agent decide or do once the name of a ossification is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] }, { "id": "stable-identifiers", "name": "Stable identifiers and external keys", "description": "Identifiers that keep pointing at this kind of thing across systems and languages.", "questions": [ { "id": "stable-identifiers-q01", "text": "What identifies and describes an identifier for a ossification, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "stable-identifiers-q02", "text": "Who or what asserted this about an identifier for a ossification, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "stable-identifiers-q03", "text": "What may an agent decide or do once an identifier for a ossification is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "classification-and-granularity", "name": "Classification and granularity", "description": "Where a ossification sits among kinds, and how finely a task needs to cut it.", "findings": [ { "id": "kind-and-parents", "name": "Kind, parents and neighbouring kinds", "description": "The classes this thing belongs to and the ones it is next to.", "questions": [ { "id": "kind-and-parents-q01", "text": "What identifies and describes the kind of a ossification, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "kind-and-parents-q02", "text": "Who or what asserted this about the kind of a ossification, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "kind-and-parents-q03", "text": "What may an agent decide or do once the kind of a ossification is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] }, { "id": "distinguishing-features", "name": "Distinguishing features", "description": "What separates a ossification from the things most often confused with it.", "questions": [ { "id": "distinguishing-features-q01", "text": "What identifies and describes what distinguishes a ossification, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "distinguishing-features-q02", "text": "Who or what asserted this about what distinguishes a ossification, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "distinguishing-features-q03", "text": "What may an agent decide or do once what distinguishes a ossification is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "state-and-lifecycle", "name": "State and lifecycle", "description": "The states a ossification passes through and the events that move it between them.", "rationale": "Most decisions about a thing depend on what state it is in now, which is a claim with a time on it, not a property.", "layers": [ { "id": "lifecycle-stages", "name": "Lifecycle stages", "description": "From coming into existence to ceasing to be one of these.", "findings": [ { "id": "stages-and-transitions", "name": "Stages and transitions", "description": "The stages worth naming and what moves a ossification between them.", "questions": [ { "id": "stages-and-transitions-q01", "text": "What identifies and describes the lifecycle of a ossification, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "stages-and-transitions-q02", "text": "Who or what asserted this about the lifecycle of a ossification, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "stages-and-transitions-q03", "text": "What may an agent decide or do once the lifecycle of a ossification is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "observations-and-status", "name": "Observations and current status", "description": "What is observed about a ossification, how often and by whom.", "findings": [ { "id": "observation-record", "name": "Observation record", "description": "How an observation of a ossification is recorded so that it can be superseded rather than overwritten.", "questions": [ { "id": "observation-record-q01", "text": "What identifies and describes an observation of a ossification, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "observation-record-q02", "text": "Who or what asserted this about an observation of a ossification, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "observation-record-q03", "text": "What may an agent decide or do once an observation of a ossification is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "process-and-outcome", "name": "Process, inputs and outcome", "description": "How a ossification proceeds, what it needs and what it leaves behind.", "rationale": "An activity is known by its steps and its results, and both have to be recordable while it is still running.", "layers": [ { "id": "steps-and-sequence", "name": "Steps and sequence", "description": "The steps of a ossification, their order and what may run in parallel.", "findings": [ { "id": "steps-and-preconditions", "name": "Steps, preconditions and completion", "description": "What has to be true before each step of a ossification and what marks it done.", "questions": [ { "id": "steps-and-preconditions-q01", "text": "What identifies and describes a step of a ossification, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "steps-and-preconditions-q02", "text": "Who or what asserted this about a step of a ossification, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "steps-and-preconditions-q03", "text": "What may an agent decide or do once a step of a ossification is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "inputs-and-results", "name": "Inputs, resources and results", "description": "What a ossification consumes and what it produces.", "findings": [ { "id": "inputs-and-outputs", "name": "Inputs, outputs and side effects", "description": "The resources a ossification takes and the results it leaves, wanted or not.", "questions": [ { "id": "inputs-and-outputs-q01", "text": "What identifies and describes the inputs and results of a ossification, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "inputs-and-outputs-q02", "text": "Who or what asserted this about the inputs and results of a ossification, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "inputs-and-outputs-q03", "text": "What may an agent decide or do once the inputs and results of a ossification is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "definitions-in-contest", "name": "Definitions and who holds them", "description": "What ossification is taken to mean, and by whom.", "rationale": "When a field disagrees about a concept, the disagreement is the content. A model that picks one definition silently destroys the information.", "layers": [ { "id": "competing-definitions", "name": "Competing definitions", "description": "The main readings and the traditions behind them.", "findings": [ { "id": "definition-map", "name": "Definitions and their holders", "description": "Each definition with the school or body that holds it.", "questions": [ { "id": "definition-map-q01", "text": "Which definitions of ossification are in use, and which tradition or body holds each?", "kind": "definition" }, { "id": "definition-map-q02", "text": "What turns on the difference between them in practice?", "kind": "boundary" } ] } ] }, { "id": "operationalisation", "name": "Operationalisation", "description": "How it is measured or applied when it has to be.", "findings": [ { "id": "operational-record", "name": "Measures and proxies", "description": "Instruments and indicators used to stand in for it.", "questions": [ { "id": "operational-record-q01", "text": "How is ossification operationalised or measured in practice, and by what instrument?", "kind": "measurement" }, { "id": "operational-record-q02", "text": "What does that operationalisation leave out, and when does that matter?", "kind": "boundary" } ] } ] } ] }, { "id": "instances-and-use", "name": "Instances, use and consequence", "description": "What counts as an instance of ossification and what follows from calling something that.", "rationale": "Applying a concept is an act with consequences, so a model must say what the label licenses and what it does not.", "layers": [ { "id": "instances", "name": "What counts as an instance", "description": "Clear cases, borderline cases and non-cases.", "findings": [ { "id": "instance-tests", "name": "Tests for an instance", "description": "What would settle whether something falls under it.", "questions": [ { "id": "instance-tests-q01", "text": "What would settle whether something is an instance of ossification?", "kind": "boundary" }, { "id": "instance-tests-q02", "text": "Which borderline cases are argued about, and on what grounds?", "kind": "definition" } ] } ] }, { "id": "consequence", "name": "Consequence of application", "description": "Rights, duties or decisions that follow from the label.", "findings": [ { "id": "consequence-record", "name": "What the label licenses", "description": "What an agent may do once something is classified this way.", "questions": [ { "id": "consequence-record-q01", "text": "What follows practically once something is treated as ossification?", "kind": "action" }, { "id": "consequence-record-q02", "text": "What must an agent not infer from the label alone?", "kind": "action" } ] } ] } ] }, { "id": "provenance-and-evidence", "name": "Provenance, evidence and time", "description": "Where every claim about a ossification came from and when it held.", "rationale": "A claim without a source and a time cannot be superseded, only overwritten, and an agent that overwrites loses the ability to explain itself.", "layers": [ { "id": "source-and-authority", "name": "Source and authority", "description": "Who said it, on what evidence, and how strongly.", "findings": [ { "id": "claim-provenance", "name": "Claim provenance and confidence", "description": "The authority behind each claim about a ossification and how confident it is.", "questions": [ { "id": "claim-provenance-q01", "text": "What identifies and describes a claim about a ossification, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "claim-provenance-q02", "text": "Who or what asserted this about a claim about a ossification, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "claim-provenance-q03", "text": "What may an agent decide or do once a claim about a ossification is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "time-and-versions", "name": "Time, versions and supersession", "description": "When a claim was true, when it was learnt, and what replaced it.", "findings": [ { "id": "validity-and-supersession", "name": "Validity period and supersession", "description": "How an old claim about a ossification is retired without being erased.", "questions": [ { "id": "validity-and-supersession-q01", "text": "What identifies and describes the validity of a claim about a ossification, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "validity-and-supersession-q02", "text": "Who or what asserted this about the validity of a claim about a ossification, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "validity-and-supersession-q03", "text": "What may an agent decide or do once the validity of a claim about a ossification is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] } ] }, "statistics": { "bundles": 6, "layers": 12, "findings": 14, "questions": 38 } } } }