object/torosaurus/1 matches the site

public static HumanMadeObject Torosaurus_Gladius()
{
    var torosaurus = new HumanMadeObject()
        .WithContext()
        .WithId("https://linked.art/example/object/torosaurus/1")
        .WithLabel("Torosaurus Gladius");

    torosaurus.EncounteredBy = [
        new Encounter()
        {
            TimeSpan = LinkedArtTimeSpan.FromYear(1891),
            CarriedOutBy = [
                new Person()
                    .WithId("https://linked.art/example/person/hatcher")
                    .WithLabel("John Bell Hatcher")
            ]
        }
    ];

    // The docs example doesn't have a label "1891" on the timespan:

    return torosaurus;
}

var humanMadeObject = new HumanMadeObject
{
    Context = ["https://linked.art/ns/v1/linked-art.json"],
    Id = "https://linked.art/example/object/torosaurus/1",
    Label = "Torosaurus Gladius",
    EncounteredBy =
    [
        new Encounter
        {
            CarriedOutBy =
            [
                new Person
                {
                    Id = "https://linked.art/example/person/hatcher",
                    Label = "John Bell Hatcher",
                },
            ],
            TimeSpan = new LinkedArtTimeSpan
            {
                BeginOfTheBegin = new LinkedArtDate(1891, 1, 1),
                EndOfTheEnd = new LinkedArtDate(1891, 12, 31, 23, 59, 59),
            },
        },
    ],
};

Generated from the object the example builds: every property that is set, as object initialisers, with the vocabulary constants where a term is in the registry. The fluent helpers are a convenience, not a requirement; this form and the one as written produce the same JSON.