# com.t0ronto.commons.entity

> Published by [t0ronto.com](https://lexicon.garden/identity/did:plc:aux2optnbxmnea7ijbfca3ak)

✓ This is the authoritative definition for this NSID.

## Links

- [View on Lexicon Garden](https://lexicon.garden/lexicon/did:plc:aux2optnbxmnea7ijbfca3ak/com.t0ronto.commons.entity)
- [Documentation](https://lexicon.garden/lexicon/did:plc:aux2optnbxmnea7ijbfca3ak/com.t0ronto.commons.entity/docs)
- [Examples](https://lexicon.garden/lexicon/did:plc:aux2optnbxmnea7ijbfca3ak/com.t0ronto.commons.entity/examples)

## Definitions

### `com.t0ronto.commons.entity`

**Type**: `record`

An anchor in the t0ronto data commons: a bare, claim-free identity for a thing — an organization, programme, venue, neighbourhood, or a vocabulary concept. The anchor holds NO properties of its own. Everything true of it — name, type, topics, location, prefLabel, broader, alignments — is asserted by separate com.t0ronto.commons.statement records, which may be authored by many different DIDs. The anchor exists only to mint a stable, resolvable identity that statements point at. Whether an anchor denotes a real-world thing or a vocabulary concept is itself an attestation (an `instanceOf` statement, e.g. instanceOf skos:Concept), not a property of this record or of which collection it lives in. The rkey IS the entity's stable identifier: a UUIDv7 for real-world things (mapping 1:1 to the public URL t0ronto.ca/e/<uuid>) or a curated slug for vocabulary concepts (e.g. at://<did>/com.t0ronto.commons.entity/music).

**Key**: `any`

| Property | Type | Required | Description |
|----------|------|----------|-------------|
| `createdAt` | `string` (datetime) | Yes | Client-declared timestamp when this identity was minted. The only field on an anchor — by design it carries no claims; claims live in statement records that reference this anchor's at-uri. |

## Raw Schema

```json
{
  "id": "com.t0ronto.commons.entity",
  "defs": {
    "main": {
      "key": "any",
      "type": "record",
      "record": {
        "type": "object",
        "required": [
          "createdAt"
        ],
        "properties": {
          "createdAt": {
            "type": "string",
            "format": "datetime",
            "description": "Client-declared timestamp when this identity was minted. The only field on an anchor — by design it carries no claims; claims live in statement records that reference this anchor's at-uri."
          }
        }
      },
      "description": "An anchor in the t0ronto data commons: a bare, claim-free identity for a thing — an organization, programme, venue, neighbourhood, or a vocabulary concept. The anchor holds NO properties of its own. Everything true of it — name, type, topics, location, prefLabel, broader, alignments — is asserted by separate com.t0ronto.commons.statement records, which may be authored by many different DIDs. The anchor exists only to mint a stable, resolvable identity that statements point at. Whether an anchor denotes a real-world thing or a vocabulary concept is itself an attestation (an `instanceOf` statement, e.g. instanceOf skos:Concept), not a property of this record or of which collection it lives in. The rkey IS the entity's stable identifier: a UUIDv7 for real-world things (mapping 1:1 to the public URL t0ronto.ca/e/<uuid>) or a curated slug for vocabulary concepts (e.g. at://<did>/com.t0ronto.commons.entity/music)."
    }
  },
  "$type": "com.atproto.lexicon.schema",
  "lexicon": 1
}
```