# Machine-Ready Knowledge > MRK-1.0: a four-clause standard for machine-consumable support > articles — self-contained sections, explicit applicability, stable > identifiers, freshness signals. Free to adopt; ships with a JSON Schema. ## Standard - [The clauses](https://machinereadyknowledge.com/): the standard, in both its renderings - [JSON Schema](https://machinereadyknowledge.com/mrk-1.0.schema.json): validate with any 2020-12 validator ## Vocabulary - [The vocabulary layer](https://machinereadyknowledge.com/terminology): the essay — terms are retrieval keys; terminology governance - [The terminology one-pager](https://machinereadyknowledge.com/downloads/contextkeeping-terminology-onepager.pdf): twelve swaps + the four-move program, no email required ## Ecosystem - [Contextkeeping](https://contextkeeping.com): the discipline behind the standard - [AnswerEcon](https://answerecon.com): have your corpus measured against it