# Module BSV::Identity::Constants <a id="module-BSV-Identity-Constants"></a>

Protocol constants and well-known values for the BSV Identity system.

## Constants
### `DEFAULT_IDENTITY` <a id="constant-DEFAULT_IDENTITY"></a> <a id="DEFAULT_IDENTITY-constant"></a>
Fallback identity used when no verified identity information is available.

### `KNOWN_IDENTITY_TYPES` <a id="constant-KNOWN_IDENTITY_TYPES"></a> <a id="KNOWN_IDENTITY_TYPES-constant"></a>
Maps symbolic names to their Base64-encoded 32-byte certificate type
identifiers.

Values are byte-exact matches with the TS SDK
(ts-sdk/src/identity/types/index.ts) and Go SDK (go-sdk/identity/types.go).

### `SERVICE` <a id="constant-SERVICE"></a> <a id="SERVICE-constant"></a>
Lookup service identifier for identity queries.

### `TOPIC` <a id="constant-TOPIC"></a> <a id="TOPIC-constant"></a>
Overlay topic name for identity transactions.