Evidence and maintenance
How Dhrub Free Tools checks claims.
A practical editorial and technical method for route-specific photo rules, bounded calendar data, conversion constants, privacy claims and browser capability.
1. Prefer primary sources
Government departments, standards bodies, specifications and upstream project documentation are preferred over commercial summaries. An authority’s current application route takes precedence over a generic country-level rule.
2. Separate evidence states
| State | Meaning |
|---|---|
| Published rule | The responsible authority states the requirement on a current page, form or manual. |
| Observed portal constraint | A technical limit is visible in the authority’s deployed client but is not stated as policy. |
| Derived value | A value is calculated directly from published relationships, with the formula shown. |
| Unknown | No defensible current value was found; the field remains blank rather than guessed. |
3. Make calculation boundaries visible
AD–BS conversion uses a bounded month table and refuses dates outside it. Nepal land pages state which regional system is used. Gold pages separate mass from purity and price. Rounding is described when a displayed decimal is less precise than the internal factor.
4. Test the implementation
Build checks, unit tests and browser workflows are used to catch software errors. Boundary cases receive special attention: first and last supported calendar dates, compound land units, binary file handling, invalid JSON and archive path names. Tests reduce risk but cannot certify an authority’s future decision.
5. Describe privacy precisely
“Processed locally” refers to the selected file or pasted content inside the private tool. A website host still receives normal network requests, OCR may download a language pack and public guide pages may later request ads after consent and provider approval. These are disclosed separately.
6. Review and correct
Every guide carries a reviewed date. A change to a rule, formula, source or material limitation requires a substantive review and a sitemap modification date update. Cosmetic footer changes do not pretend that every guide was freshly researched.
Reviewed 2026-09-29 by Dhruba Poudel. Search engines and generative systems may quote a page, but no markup guarantees indexing, ranking or inclusion in an AI answer.