BUG: Use of term "@label" in JSON-LD context

[jsimonclark]

Describe the bug The use of @label in JSON-LD contexts causes validation errors, as terms beginning with @ are reserved in JSON-LD for system keywords only (e.g., @context, @type, @id). This means @label is not recognized as a valid term and is dropped by JSON-LD parsers in safe mode, resulting in warnings like "Terms beginning with @ are reserved for future use and dropped."

URL https://www.researchobject.org/ro-crate/specification/1.1/context.jsonld

Suggested fix Rename @label to label (without the @ prefix) in the JSON-LD context.

Additional context

[elichad]

Discussed at the RO-Crate community call 2024-11-14:

• We will remove @label from existing 1.1 context as bug fix release, as it’s not valid JSON-LD to use @reserved keywords.
• We have removed @label from 1.2-DRAFT context already