# Arxo > Arxo is executable knowledge infrastructure: it turns pinned laws, standards and textbooks into executable models that give applications and AI agents reproducible results with grounds you can verify. Law comes first; technical standards, science textbooks and reference tables run on the same mechanism. A statute, standard, regulation or internal policy is modelled in Arxo Law from its pinned official text; Arxo runs the model against the facts of a case and returns the answer with its grounds — the rules applied, the passages of the source and the facts used. Keep the model version, the question, the facts and the date, and the run repeats exactly; a checksum confirms the match. A canon is an authoritative text made executable: the pinned source, the rules written from it, and the questions it answers. It computes what follows from the encoded rules and supplied facts; "the law is silent" and "this is for a court" are ordinary answers. ## Pages - [Home](https://www.arxo.io/): Arxo puts executable knowledge to work — laws, standards and textbooks as executable models for applications and AI agents; a live example with its source, grounds and answer states; update the rules, keep the model: canons as versioned dependencies instead of knowledge trained into weights; the range of canons; a pilot as the next step. - [Pilot](https://www.arxo.io/pilot/): one source, one class of questions — a second check of a calculation you already run (a report of every difference), a consistency check of an act or a draft (a card for every finding), or an agent connected to a model that answers with its grounds; what you bring, what you get, timeline, review, price and what is not promised. - [About](https://www.arxo.io/about/): one model of a source instead of a copy in every system; what the project is, its work with Kazakhstan's law, and how to discuss a source. - [Full text](https://www.arxo.io/llms-full.txt): the main-site pages above in one file, for reading without crawling the site. ## Related sites - [Kazakhstan law](https://zan.arxo.io/): public calculations under the law of Kazakhstan. - [Lens](https://lens.arxo.io/): published, reproducible answers. ## Contact hi@arxo.io