{ "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-13T01:30:35Z", "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", "enrichment": { "pass": 3, "engine": "claude", "producedAt": "2026-10-06T10:00:00Z", "ingestedAt": "2026-10-06T06:59:39+00:00", "fields": [ "agent_conduct", "ethics", "owners" ] }, "gate": { "passed": true, "version": "1.0", "at": "2026-10-06T19:52:01+00:00", "evidence": [ "completeness 1.00", "sense: Wikidata description", "2 live sources", "review by codex: pass" ] } }, "metaModel": { "id": "THING-Q556", "registryId": "vr.tr.hydrogen", "name": "hydrogen", "version": "0.2.0-wave.3", "entryKind": "thing", "family": "Thing Registry", "domain": [ "PHY.MAT" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q556/", "model": { "registry_id": "vr.tr.hydrogen", "name": "hydrogen", "purpose": "Let an agent explain hydrogen and its properties, relay isotopes, production routes, uses and safety from reference sources, present energy transition debates with attribution, and distinguish hydrogen the element from hydrogen energy policy.", "definition": "The chemical element with symbol H and atomic number 1, the lightest and most abundant element in the universe, a colourless diatomic gas at standard conditions with isotopes protium, deuterium and tritium and the unstable hydrogen-4, forming water and most organic compounds; hydrogen is produced mainly from natural gas as grey hydrogen, with carbon capture as blue hydrogen and by electrolysis with renewable power as green hydrogen, and is used in ammonia, refining, fuel cells and as a proposed energy carrier, while deuterium ratios serve as tracers in science.", "what_it_is_for": "Chemical feedstock, fuel and energy carrier.", "affordances": [ "relay properties and isotopes", "explain production routes and colours", "describe uses and safety", "present energy debates neutrally" ], "distinguishing_features": [ "Lightest element", "Most abundant in the universe", "Three main isotopes", "Energy carrier debates" ], "appearance": "A colourless, odourless gas; liquid at very low temperature.", "visual_identification": [ "Element 1, symbol H", "Protium, deuterium, tritium; grey, blue, green hydrogen", "Helium is the next element; hydrocarbons contain hydrogen but are compounds" ], "physical_properties": [ { "quantity": "atomic number", "typical_range": "1", "unit": "Z", "note": "" }, { "quantity": "standard atomic weight", "typical_range": "1.008", "unit": "u", "note": "" }, { "quantity": "boiling point", "typical_range": "-252.9", "unit": "degrees C", "note": "" }, { "quantity": "flammability range in air", "typical_range": "about 4-75", "unit": "percent", "note": "" } ], "families_and_kinds": [ "protium, deuterium and tritium and short-lived isotopes such as hydrogen-4", "molecular hydrogen and atomic hydrogen", "grey, blue, green, pink and turquoise hydrogen by production route", "hydrogen compounds such as water, ammonia and hydrides", "deuterium ratio as an isotopic tracer" ], "related_models": [ { "relation": "is a kind of", "target": "diatomic nonmetal", "why": "in registry terms" }, { "relation": "is a kind of", "target": "s-block", "why": "element in registry terms" }, { "relation": "is a kind of", "target": "reducing agent", "why": "in registry terms" }, { "relation": "is produced by", "target": "steam methane reforming", "why": "and electrolysis" } ], "identifiers": [ { "scheme": "symbol", "value_or_pattern": "H", "note": "" }, { "scheme": "CAS", "value_or_pattern": "1333-74-0", "note": "molecular hydrogen" } ], "standards_and_regulation": [ "Hydrogen safety codes and standards such as ISO 19880", "Pressure vessel and transport regulations", "Low-carbon hydrogen certification schemes", "Tritium handling and radiation rules" ], "failure_modes_and_hazards": [ "Flammability and explosion", "Embrittlement of metals", "Overstated or partisan energy claims", "Tritium radiation" ], "in_scope": [], "out_of_scope": [], "characteristics": [], "agent_conduct": { "may": [ "Describe hydrogen's properties, production and uses from reliable sources.", "Monitor hydrogen sensors and report leaks in installations it is authorized to watch." ], "must_not": [ "Assist in making or using hydrogen to harm people or property.", "Advise handling hydrogen near ignition sources or in confined spaces without proper controls.", "Disable leak detection, ventilation or pressure relief on hydrogen systems.", "Present hydrogen as emission-free regardless of how it was produced." ], "requires_human": [ "Approving the design or opening of hydrogen storage or fuelling installations.", "Responding to a detected leak near people." ] }, "ethics": { "considerations": [ "Hydrogen leaks are invisible and ignite easily, endangering workers and neighbours.", "Claims about clean hydrogen shape climate policy and must be honest." ], "affected_parties": [ "Workers and neighbours of installations", "Vehicle users", "Emergency responders" ] }, "owners": { "steward": "The operator of the installation or the holder of the gas.", "master_systems": [ "Chemical substance inventories", "Hazardous installation permits" ] } }, "sources": [ { "id": "wikidata", "title": "Wikidata item Q556: hydrogen", "url": "https://www.wikidata.org/wiki/Q556", "url_status": "live", "what_it_supports": "identity and sense of the item", "checked_by": "wikidata-api" }, { "id": "wikipedia-en", "title": "Wikipedia: Hydrogen", "url": "https://en.wikipedia.org/wiki/Hydrogen", "url_status": "live", "what_it_supports": "general description of the item", "checked_by": "wikidata-api sitelink" } ], "structure": { "bundles": [ { "id": "identify", "name": "Identify", "description": "What hydrogen is.", "rationale": "Identity.", "layers": [ { "id": "properties", "name": "Properties", "description": "Properties.", "findings": [ { "id": "properties-finding", "name": "Properties", "description": "Properties.", "questions": [ { "text": "What are the physical and chemical properties of hydrogen?", "kind": "definition" }, { "text": "Is the question about the element, its isotopes or hydrogen energy?", "kind": "boundary" } ] } ] }, { "id": "isotopes", "name": "Isotopes", "description": "Isotopes.", "findings": [ { "id": "isotopes-finding", "name": "Isotopes", "description": "Isotopes.", "questions": [ { "text": "What are protium, deuterium and tritium, and how is the deuterium ratio used in science?", "kind": "definition" }, { "text": "Which entry fits the specific isotope?", "kind": "action" } ] } ] } ] }, { "id": "produce", "name": "Produce", "description": "Production.", "rationale": "Industry.", "layers": [ { "id": "routes", "name": "Routes", "description": "Production routes.", "findings": [ { "id": "routes-finding", "name": "Routes", "description": "Routes.", "questions": [ { "text": "How is hydrogen produced by reforming, electrolysis and other routes, and what do the colour labels mean?", "kind": "provenance" }, { "text": "Which entry fits the specific route?", "kind": "action" } ] } ] }, { "id": "supply", "name": "Supply", "description": "Supply and cost.", "findings": [ { "id": "supply-finding", "name": "Supply", "description": "Supply.", "questions": [ { "text": "How much hydrogen is produced, and what do reports say about costs and emissions, with sources?", "kind": "measurement" }, { "text": "Which sources are cited?", "kind": "provenance" } ] } ] } ] }, { "id": "use", "name": "Use", "description": "Uses and safety.", "rationale": "Application.", "layers": [ { "id": "uses", "name": "Uses", "description": "Uses.", "findings": [ { "id": "uses-finding", "name": "Uses", "description": "Uses.", "questions": [ { "text": "How is hydrogen used in ammonia, refining, fuel cells, steelmaking and transport?", "kind": "provenance" }, { "text": "Which references are standard?", "kind": "provenance" } ] } ] }, { "id": "safety", "name": "Safety", "description": "Safety.", "findings": [ { "id": "safety-finding", "name": "Safety", "description": "Safety.", "questions": [ { "text": "What safety rules govern hydrogen storage, transport and use?", "kind": "provenance" }, { "text": "Which entry fits hydrogen safety?", "kind": "action" } ] } ] } ] }, { "id": "context", "name": "Context", "description": "Energy debate and history.", "rationale": "Attribution.", "layers": [ { "id": "debate", "name": "Debate", "description": "Energy transition.", "findings": [ { "id": "debate-finding", "name": "Debate", "description": "Debate.", "questions": [ { "text": "What do analysts say about the role of hydrogen in decarbonisation, with positions attributed?", "kind": "provenance" }, { "text": "Is the presentation neutral?", "kind": "boundary" } ] } ] }, { "id": "history", "name": "History", "description": "History.", "findings": [ { "id": "history-finding", "name": "History", "description": "History.", "questions": [ { "text": "How was hydrogen discovered by Cavendish and named by Lavoisier, and how did its uses develop?", "kind": "provenance" }, { "text": "Which entry fits the history of chemistry?", "kind": "action" } ] } ] } ] } ] }, "openQuestions": [ "Should hydrogen economy and deuterium be separate primary entries?", "How should reference and policy sources be linked?", "The registry entry has merged aliases naming isotopes, colours and a ratio; should they be split off?" ], "statistics": { "bundles": 4, "layers": 8, "findings": 8, "questions": 16 } }