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closed calendar periods within the loaded published-record coverage. Counts are not final incidence; corrections remain possible. Unloaded/future periods are missing, not zero.","kind":"socrata","label":"City of Chicago · Business Licenses","note":"Source xqx5-8hwx. Joint day/category/hour/applicable-flag/ward/status counts; no addresses, coordinates or incident identifiers. Each year's cells reconcile with an independent source total. Reads are not an atomic publisher snapshot. License records by term start, including renewals; not new businesses. Ward is as published, not reconstructed historical boundaries. Prepared daily community-area snapshot; scheduled rebuild at 06:00 America/Chicago. Full supported history is rechecked for corrections. Retrieval timestamps are preserved; this is not a real-time feed.  Local indexed neighborhood snapshot. Totals are for the loaded area before other filters, not citywide totals. Citywide and unassigned-area views use a separate network-backed scope.","publishedUpdatedAt":"2026-11-05T11:01:01.000Z","retrievedAt":"2026-11-05T21:09:58.696Z","snapshotId":"daily-v1:8a9771a7-dde2-4246-9cf6-d11519e895d6:neighborhood-v2:86fd007b4ddb5a845f1e22273b8c17e7","workingSet":{"area":"57","coverage":{"endExclusive":"2026-10-01","start":"2002-01-01"},"rowCount":2452}},"totalCount":1821,"window":{"endExclusive":"2026-10","start":"2016-10"}},"evidence":{"body":{"completedAt":"2026-11-09T17:38:41.975Z","inputHash":"3a23012d62fb5eefca398e820a39905cf51414c668fdf5a61168e51a0c0ec786","outcome":{"analysis":{"available":true,"bicGain":0,"boundaries":[],"boundaryRanges":[],"factorRatios":[],"message":"No clear change in celeration under this rule. This does not mean counts were constant.","method":"exploratory-segmented-log10-ols-zero-as-one-v3","mode":"suggested","phases":[{"factorInterval":[0.9925958869337929,1.0400579903299696],"fit":{"available":true,"calendarPeriod":"monthly","end":"2026-09","factor":1.0160498429575955,"intercept":0.914640567744536,"method":"log10-ols-calendar-zero-as-one-v2","origin":24201,"periodUnits":6,"sampleCount":120,"slope":0.0011525021761092191,"start":"2016-10","zeroCount":1},"lagOne":0.10967795655137727,"slopeSE":0.0008277058380314097,"sse":11.640359033251151}],"range":{"end":"2026-09","start":"2016-10"},"warnings":["Exploratory description, not a forecast, causal explanation or proof of a change.","Approximate 95% factor intervals assume independent, constant-variance log residuals and fixed boundaries. They do not account for boundary search, serial dependence or source revisions.","Confirmed zeros are treated as 1 only for fitting and its diagnostics. Raw counts stay zero; low-count results depend on this convention.","Independent phase lines may jump at boundaries. Every observation belongs to exactly one phase.","Reporting, classifications and seasonality can change. Counts are not population-adjusted; a level shift without a slope change is not the target of this search.","Uses dated last-good cached data, not newly verified source counts.","1 confirmed zero fitted as 1; raw counts remain zero. Low-count trends are sensitive to this adjustment.","At least one factor interval includes 1; its direction is uncertain under this approximation."]},"annualFrequency":{"available":true,"end":"2026-09","flag":true,"foldMagnitude":1.8319327731092436,"monthlyDelta":-8.25,"priorMonthlyMean":18.166666666666668,"priorStart":"2024-10","priorTotal":218,"ratio":0.5458715596330275,"reason":"Raw counts: latest 12 covered months versus preceding 12; descriptive, not a detected breakpoint","recentMonthlyMean":9.916666666666666,"recentStart":"2025-10","recentTotal":119,"score":0.742916181980676,"windowMonths":12,"zeroBaseline":false},"flags":[],"frequency":{"available":true,"end":"2026-09","flag":false,"foldMagnitude":1.1127596439169138,"monthlyDelta":-1.5833333333333333,"priorMonthlyMean":15.625,"priorStart":"2022-10","priorTotal":375,"ratio":0.8986666666666666,"reason":"Raw counts: latest 24 covered months versus preceding 24; descriptive, not a detected breakpoint","recentMonthlyMean":14.041666666666666,"recentStart":"2024-10","recentTotal":337,"score":0.15227163221119508,"windowMonths":24,"zeroBaseline":false},"frequencyAssessment":"annual-only","method":"multi-feed-turn-and-frequency-renewal-v2","observationHash":"09cb7fa905fea528484dd36fbbd3cc88a470b883e684b2c8b2246a1dc6f46a70","phases":[{"factorInterval":[0.9925958869337929,1.0400579903299696],"fit":{"available":true,"calendarPeriod":"monthly","end":"2026-09","factor":1.0160498429575955,"intercept":0.914640567744536,"method":"log10-ols-calendar-zero-as-one-v2","origin":24201,"periodUnits":6,"sampleCount":120,"slope":0.0011525021761092191,"start":"2016-10","zeroCount":1},"lagOne":0.10967795655137727,"slopeSE":0.0008277058380314097,"sse":11.640359033251151}],"ranking":{"frequency":0,"turn":0},"reason":"Annual flag retained as review context; does not qualify under the 24-month business frequency policy","reviewContext":true,"status":"no-finding","thresholds":{"minFrequencyRatio":1.5,"minMonthlyDelta":5,"minPhaseTotal":120,"minTurn":1.5},"turns":[],"warnings":["Exploratory description, not a forecast, causal explanation or proof of a change.","Approximate 95% factor intervals assume independent, constant-variance log residuals and fixed boundaries. They do not account for boundary search, serial dependence or source revisions.","Confirmed zeros are treated as 1 only for fitting and its diagnostics. Raw counts stay zero; low-count results depend on this convention.","Independent phase lines may jump at boundaries. Every observation belongs to exactly one phase.","Reporting, classifications and seasonality can change. Counts are not population-adjusted; a level shift without a slope change is not the target of this search.","Uses dated last-good cached data, not newly verified source counts.","1 confirmed zero fitted as 1; raw counts remain zero. Low-count trends are sensitive to this adjustment.","At least one factor interval includes 1; its direction is uncertain under this approximation.","License records include renewals and use license-term dates. Category/ward changes and administrative practice can affect counts; these are not business openings, closures or employment.","Business frequency screening compares adjacent 24-month windows, requiring 48 complete months. The 12-month comparison is context only. Fixed two-year windows reduce renewal-calendar mismatch; they are not seasonal adjustment, proof of a renewal mechanism, or a test of stability.","Window assessment: annual-only. Annual-only flags do not enter the frequency ranking. Opposite directions and short history must not be described as persistent changes.","Many dependent filter conditions were searched. No multiple-testing-adjusted significance or causal attribution is claimed.","Frequency compares fixed equal-length windows of raw counts, not population risk or a celeration-factor ratio. Reporting, classifications and exposure may have changed."]},"runId":"817ae5c5ce03411a3c5680a546171629f627c699d9ee90e34f35fe1021144814","schemaVersion":1,"seriesId":"f679413ee480033e18d394a5be419320d4664ffbdf552922fd4836467054435d"},"sha256":"e4e206a2da549d6909cd9ff90311584be2b6941a5a5298aa4f1968f2b2548cb8"},"followUp":{"queriedAt":"2026-11-09T17:21:33.760Z","dataset":"xqx5-8hwx","communityArea":"57","termStart":"2025-06-16","url":"https://data.cityofchicago.org/resource/xqx5-8hwx.json?%24select=application_type%2Cexpiration_date%2Ccount%28%2A%29+as+records&%24where=community_area%3D%2757%27+AND+license_start_date+%3E%3D+%272025-06-16T00%3A00%3A00%27+AND+license_start_date+%3C+%272025-06-17T00%3A00%3A00%27&%24group=application_type%2Cexpiration_date&%24order=application_type%2Cexpiration_date&%24limit=51","groups":[{"application_type":"RENEW","expiration_date":"2026-06-15T00:00:00.000","records":"4"},{"application_type":"RENEW","expiration_date":"2027-06-15T00:00:00.000","records":"114"}],"frozenDayTotal":118,"limitations":"Separate bounded aggregate publisher lookup, not part of the original snapshot. Its 118 records match the checksummed frozen day total; renewal type and expiration were not retained in that original snapshot. Earlier multi-year lookup returned HTTP 503; the narrowed one-day lookup succeeded. Response freshness-advisory headers were not retained, so this is corroborating published classification evidence, not a fresh-source acceptance result or whole-dataset refresh. No individual establishments, closures or causal effects are established."}}