{"schema":"https://ver.cy/schemas/card/1.0.0","id":"vr.tr.october-4","code":"thing-q2929","url":"https://ver.cy/models/thing/q2929/","name":"October 4","alternateNames":["October 4, 1926"],"kind":"thing","status":"published","version":"0.2.0-wave.1","language":"en","classifiers":{"family":"Thing Registry","category":"Cross-cutting context","entryKind":"thing","plane":"XCT","domain":["XCT.TME"],"industry":[],"navPath":"","tags":[],"facets":{}},"whatItIs":"The 277th day of the year in the Gregorian calendar (278th in leap years), with 88 days remaining; observed as World Animal Day and the feast of Saint Francis of Assisi, and the date Sputnik 1 was launched in 1957.","purpose":"Let an agent handle October 4 as a calendar date with day number, weekday computation, observances and sourced events.","scope":{"in":[],"out":[],"boundaries":[]},"distinguishingFeatures":["World Animal Day","Feast of Saint Francis in Western Christianity","Launch of Sputnik 1 in 1957","Weekday varies by year"],"structure":{"bundles":[{"id":"date","name":"Date","description":"Calendar facts.","layers":[{"id":"weekday","name":"Weekday","description":"Computation.","findings":[{"id":"weekday-finding","name":"Weekday","description":"Weekday.","questions":[{"text":"On which weekday does October 4 fall in this year?","kind":"measurement"},{"text":"Is it a leap year?","kind":"boundary"}]}]},{"id":"format","name":"Format","description":"Notation.","findings":[{"id":"format-finding","name":"Format","description":"Date format.","questions":[{"text":"How should the date be written for this audience?","kind":"action"},{"text":"Is ISO format needed?","kind":"boundary"}]}]}]},{"id":"observances","name":"Observances","description":"Days of note.","layers":[{"id":"animals","name":"World Animal Day","description":"Observance.","findings":[{"id":"animals-finding","name":"Animals","description":"World Animal Day.","questions":[{"text":"How is World Animal Day marked, and by which organisations?","kind":"provenance"},{"text":"Is it an official holiday anywhere?","kind":"provenance"}]}]},{"id":"religious","name":"Religious","description":"Saint Francis.","findings":[{"id":"religious-finding","name":"Religious","description":"Feast day.","questions":[{"text":"Which churches observe the feast of Saint Francis on this date?","kind":"provenance"},{"text":"How is it marked?","kind":"definition"}]}]}]},{"id":"history","name":"History","description":"Past events.","layers":[{"id":"events","name":"Events","description":"On this day.","findings":[{"id":"events-finding","name":"Events","description":"Historical events.","questions":[{"text":"Which notable events happened on this date, according to reliable sources?","kind":"provenance"},{"text":"Are dates in the same calendar?","kind":"boundary"}]}]},{"id":"space","name":"Space","description":"Sputnik 1.","findings":[{"id":"space-finding","name":"Space","description":"Space history.","questions":[{"text":"What is the significance of the 1957 Sputnik 1 launch?","kind":"provenance"},{"text":"Is World Space Week linked to it?","kind":"provenance"}]}]}]},{"id":"planning","name":"Planning","description":"Scheduling.","layers":[{"id":"countdown","name":"Countdown","description":"Days until.","findings":[{"id":"countdown-finding","name":"Countdown","description":"Countdown.","questions":[{"text":"How many days until the next October 4?","kind":"measurement"},{"text":"From which date?","kind":"definition"}]}]},{"id":"anniversaries","name":"Anniversaries","description":"Recurring.","findings":[{"id":"anniversaries-finding","name":"Anniversaries","description":"Anniversaries.","questions":[{"text":"Which anniversaries fall on this date this year?","kind":"provenance"},{"text":"Which are round numbers?","kind":"measurement"}]}]}]}]},"agentConduct":{"may":["List events, observances and anniversaries on October 4 with their sources.","Schedule reminders and deadlines falling on October 4 for the user."],"mustNot":["Attribute a birth, death or event to October 4 without a reliable source.","Mix up Julian and Gregorian dates when assigning historical events to October 4.","Present a religious feast or observance as universal or official where it is not."],"requiresHuman":["Publishing anniversary content about tragedies or victims."]},"ethics":{"considerations":["The date's feast of Saint Francis and World Animal Day carry religious and welfare meaning.","Anniversaries can be painful for those affected by past events."],"affectedParties":["People commemorating the date","Readers of history"]},"owners":{"steward":"Nobody: a calendar date is held in common.","roles":[],"masterSystems":[]},"relations":[{"target":"Q11187901","type":"parent","note":"registry parent class"},{"target":"October","type":"related","note":"month"},{"target":"calendar date","type":"related","note":"category"},{"target":"World Animal Day","type":"related","note":"observance"},{"target":"ISO 8601","type":"related","note":"notation"}],"interaction":{"identity":{"applicability":"required","items":["Vercy registry: vr.tr.october-4","Wikidata: Q2929 (https://www.wikidata.org/wiki/Q2929)","ISO 8601: --10-04 recurring date"]},"properties":{"applicability":"not-applicable","items":["day of year: 277 or 278 day - common or leap year","days remaining: 88 days"]},"recognition":{"applicability":"optional","items":["Written 4 October or October 4","ISO format --10-04","Specific years such as October 4, 1926 are separate","A date on calendars."]},"capabilities":{"applicability":"required","items":["compute its weekday in a given year","list observances","find sourced historical events","schedule events"]},"hazards":{"applicability":"required","items":["Day-month order confusion","Unsourced on-this-day events"]},"interfaces":{"applicability":"required","items":["ISO 8601","National public holiday laws"]},"context":{"applicability":"required","items":["A calendar date for scheduling, anniversaries and observances.","the recurring calendar date","specific dated days in given years"]}},"sources":[{"title":"Wikidata item Q2929: October 4","url":"https://www.wikidata.org/wiki/Q2929","note":"identity and sense of the item"},{"title":"Wikipedia: October 4","url":"https://en.wikipedia.org/wiki/October_4","note":"general description of the item"}],"openQuestions":["Should dated days be separate entries?","How should observances be linked?","How should events be sourced?"],"resources":{"spec":"/models/things/publications/thing-q2929/spec.json"},"provenance":{"origin":"thing registry research (pass 2)","builtFrom":["models/things/publications/thing-q2929/spec.json"],"providers":["Claude"],"researchStatus":"unreviewed","generatedAt":"2026-09-11T08:17:18Z","builder":"tools/build_cards.py@1.0.0"},"completeness":{"sections":{"classifiers":"filled","whatItIs":"filled","purpose":"filled","distinguishingFeatures":"filled","structure":"filled","agentConduct":"filled","ethics":"filled","owners":"filled","relations":"filled","interaction.identity":"filled","interaction.properties":"not-applicable","interaction.recognition":"filled","interaction.capabilities":"filled","interaction.hazards":"filled","interaction.interfaces":"filled","interaction.context":"filled","sources":"filled"},"notes":{"_gate":"Published through the thing publication gate 1.0 on 2026-10-06T19:51:58+00:00: completeness 1.00; sense: Wikidata description; 2 live sources; review by codex: pass","interaction.properties":"Plane XCT: no invented physical properties."},"score":1.0}}