scienting-1.jsonld is the context that, together with the W3C Web Annotation context, makes every annotation layer valid JSON-LD. It is published at https://scient.ing/ns/scienting/1.jsonld, and every layer and annotation lists both:

{"@context": ["http://www.w3.org/ns/anno.jsonld", "https://scient.ing/ns/scienting/1.jsonld"]}

The context maps the terms the formats add to annotations (kind, status, audience, receipt, verdict, AnchorSelector, anchor and others) to IRIs under https://scient.ing/ns/scienting#. anchor and exercise are JSON literals, so a JSON-LD processor keeps a scienting-anchor/1 record intact instead of expanding it.

A Web Annotation tool that knows nothing of this context still reads the annotation's body and its TextQuoteSelector; the context matters only to tools that process the data as linked data. Chapter 18 defines layers and annotations.