{"country":"BY","country_name":"Belarus","date_used":"2026-05-21","history":[{"date":"2026-05-15","is_anom":false,"n":25,"observed":0.44,"residual":0.275756,"seasonal":-0.111368,"trend":0.275612,"zscore":1.4074},{"date":"2026-05-16","is_anom":false,"n":18,"observed":0.166667,"residual":-0.00586,"seasonal":-0.099097,"trend":0.271624,"zscore":-0.1933},{"date":"2026-05-17","is_anom":false,"n":18,"observed":0.333333,"residual":-0.022359,"seasonal":0.088414,"trend":0.267278,"zscore":-0.2871},{"date":"2026-05-18","is_anom":false,"n":21,"observed":0.190476,"residual":0.061049,"seasonal":-0.133343,"trend":0.26277,"zscore":0.187},{"date":"2026-05-19","is_anom":false,"n":18,"observed":0.222222,"residual":-0.00139,"seasonal":-0.034596,"trend":0.258207,"zscore":-0.1679},{"date":"2026-05-20","is_anom":false,"n":29,"observed":0.586207,"residual":-0.021228,"seasonal":0.353938,"trend":0.253497,"zscore":-0.2807},{"date":"2026-05-21","is_anom":true,"n":4,"observed":1,"residual":0.786524,"seasonal":-0.03507,"trend":0.248546,"zscore":4.3107}],"honest_caveats":["Descriptive, not causal — high |zscore| != censorship.","Sensitive to data sparsity; some country-days have very few measurements.","period=7 assumes weekly seasonality; flat-pattern countries get small seasonal component."],"interpretation":"residual = observed - (trend + seasonal); zscore = residual / std(residuals) in this country. |zscore| > 2.0 = seasonally anomalous. Higher = bigger break from this country's own weekly rhythm. ORTHOGONAL to /v1/anomaly/dbscan/{cc} — STL catches own-pattern breaks; DBSCAN catches shape-anomalous days.","is_anomaly":true,"model_meta":{"algorithm":"STL (Cleveland 1990) period=7 robust=True","min_days_for_fit":60,"n_countries_fit":42,"stl_period":7,"trained_at":"2026-05-22T04:45:02.932759Z","version":"v1","window_days":90,"zscore_threshold":2},"n_measurements_that_day":4,"observed":1,"residual":0.786524,"schema":"voidly-stl-seasonal-anomaly/v1","seasonal":-0.03507,"trend":0.248546,"zscore":4.3107,"_voidly_pay":{"claim_did":"https://voidly.ai/pay/claim","for_builders":"https://voidly.ai/pay/for-builders","marketplace":"https://api.voidly.ai/v1/pay/marketplace","live_demo":"https://huggingface.co/spaces/emperor-mew/voidly-pay","universal_proxy":{"url":"https://api.voidly.ai/v1/pay/proxy","example":"https://api.voidly.ai/v1/pay/proxy?u=<https-url>&to=did:voidly:<your-did>&price=0.01","page":"https://voidly.ai/pay/proxy","note":"Paywall any public HTTPS URL with one query param. No SDK install required."},"install":{"typescript":"npm install @voidly/pay","python":"pip install voidly-pay","langchain":"pip install voidly-pay-langchain","vercel_ai":"npm install @voidly/pay-vercel-ai","mcp":"npx @voidly/pay-mcp","cli":"npm install -g @voidly/pay-cli"},"note":"Voidly Pay is the open agent-to-agent payment rail. Claim a DID + 10 starter credits in 60s, or paywall any URL via the universal proxy with one query param."}}