> ## Documentation Index > Fetch the complete documentation index at: https://docs.arkhub.co/llms.txt > Use this file to discover all available pages before exploring further. # Attributes, tags and claims > The three kinds of information a record holds, and how they differ ## Overview A record holds three kinds of information. Each has one job. | Kind | What it answers | Examples | | - | - | - | | **Attribute** | A measured or described fact | Location, length, stone count, construction technique | | **Tag** | What the record has or relates to, for grouping and search | Periods, civilizations, materials, functions | | **Claim** | Evidence that can be disputed, with how it was established and its sources | Datings, attributions, purposes, alignments | The record's **kind** (temple, stone circle, sword) is none of these. It is the one answer to "what is this?", and you pick it when you create the record. ## Attributes Attributes are the facts on a record page, under **Details** and **Characteristics**. Each shows with its label and, where given, its sources. The fields depend on the record type and the kind. A place has a location, sizes and construction fields. A stone circle adds a stone count, a diameter and the number of rings. An artifact has dimensions, weight and materials. A person has birth and death dates and places. ### Values Arkhub works out Some values are not typed in. Arkhub works them out and refreshes them when the record changes: * **Country, region and continent**, from the location. * **Date span and periods**, from the record's datings, using a period scheme for each part of the world. A badge shows when datings disagree. * **Length, width, area and the length of the lines**, from the outline, for places that have one. These show as "measured from the outline". ### Fields in tables In a repository table, open **Edit properties** to add, remove or reset fields, grouped by topic. **Fill the table** offers a set of fields for your background (engineers, architects, historians and more) and shows how much of your table each set would fill. ## Tags Tags group records so you can filter and search them. A record can carry tags from each of these categories: * **Time Periods**: Paleolithic, Neolithic, Bronze Age, Iron Age and so on * **Civilizations** * **Material Types**: stone, metals, ceramics, wood and more * **Architectural Features**: what a place has, such as terraces or hearths * **Research Methods** * **Functions** * **Site Relationship Types** * **Unifying Features** Tags say what a record has or relates to. They never say what the record is; that is its kind. > [!NOTE] > > Not every category applies to every record type. The reference pages linked in the app's footer (Taxonomy, Attributes, Hierarchy) list every tag, every field and how places nest. ## Claims A claim is one piece of evidence with how it was established, who makes it and the sources that back it. Claims that disagree sit side by side. The claim lists are: | Claim list | What one claim says | | - | - | | **Datings** | From and to, what the dates cover (construction, use, repair, abandonment), the method (radiocarbon, stratigraphy, inscription, estimate and more), the sample and lab id | | **Attributions** | The civilization or the people who made it, and the basis (excavation evidence, inscription, historical record, genetic evidence and more) | | **Purposes** | What it was for: ceremonial, funerary, astronomical, residential, defensive, water management and more | | **Alignments** | A feature aligned on an event (solstice sunrise, lunar standstill, a star) with its azimuth, and how it was measured | | **Names** | What a name means | | **Depictions** | What a figure or a geoglyph shows | | **Stone weights** | The weight of a stone, measured, calculated or estimated | | **Stone sources** | Where a stone came from, by petrography, geochemistry or the nearest outcrop, and the distance | | **Stone shaping** | How a stone was shaped: quarried and carved, cast, softened, heat-worked, machined, or a natural formation | | **Composition** | A chemical or mineral analysis: analyte, value and unit | | **Replications** | Experiments that reproduced a technique | ### Claims in tables From **Edit properties** you can show a claim list as a table column. Each claim shows with its type, competing claims side by side. Filter a column by type, say every animal figure. Showing the table as someone's version shows their claims. ### Challenging claims Any Contributor can add a claim or object to one. See [Challenge a record](/essentials/records/records.md#challenge-a-record). ## Common questions > **I cannot find a field** > > Fields depend on the record type and the kind. Check that the record has the right type and kind. In a table, open Edit properties; the field may be hidden. > **Two datings disagree. Which one is right?** > > Arkhub does not pick. Both claims show with their basis and their sources, and the record carries a badge that says they disagree. You can object to one of them with your reasons. ## Related pages * [Records](/essentials/records/records.md): the record page, creating and editing records * [Repositories](/essentials/repositories.md): fields and claims as table columns This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.