id.json

{
    "$id": "https://schemas.optimade.org/defs/v1.2/properties/core/id",
    "$schema": "https://schemas.optimade.org/meta/v1.2/optimade/property_definition.json",
    "title": "ID",
    "x-optimade-type": "string",
    "x-optimade-definition": {
        "label": "id_core",
        "kind": "property",
        "version": "1.2.0",
        "format": "1.2",
        "name": "id"
    },
    "type": [
        "string"
    ],
    "description": "A unique string referencing a specific entry in the database.\n\n**Requirements/Conventions:**\n\n- Taken together, the ID and entry type MUST uniquely identify the entry.\n- Reasonably short IDs are encouraged and SHOULD NOT be longer than 255 characters.\n- IDs MAY change over time.",
    "examples": [
        "db/1234567",
        "cod/2000000",
        "cod/2000000@1234567",
        "nomad/L1234567890",
        "42"
    ],
    "x-optimade-unit": "inapplicable"
}