DAXP Core Tags Specification
Under active development
| Tag Number | Symbol | Description |
|---|---|---|
| $:1 | MSG_TYPE | Defines the core message type, transaction status, or state of the protocol frame. |
| $:2 | MSG_ROLE | Defines the functional role or access privileges associated with the message context. |
| $:3 | MSG_BLOCK_QUANTITY | Indicates the total quantity of data blocks contained within the current frame. |
| $:4 | BLOCK_INDEX | Represents the explicit, zero-based sequence or index number of the current block. |
| $:5 | BLOCK_TYPE | Specifies the structural layout, template, or type definition of the block. |
| $:6 | ENTRY_TAG | Universal data field container used as a generic entry identifier. |
| $:7 | ENTRY_OWNER_ID | Identifies the unique owner or creator entity of the data entry. |
| $:9 | CHECKSUM | Protocol trailer identifier used for message integrity verification. |
| $:11 | ENTRY_NAME | The human-readable name assigned to the specific dictionary or data entry. |
| $:12 | ENTRY_DESCRIPTION | Verbose description or documentation text detailing the entry's purpose. |
| $:15 | ENTRY_SYMBOL | Short code, ticker, unit representation, or currency symbol for the data entry. |
| $:20 | ATR_DATA_TYPE | Specifies the base attribute data type layout mapping for validation. |
| $:21 | ENTRY_SCHEMA | Defines the data schema mapping or relational constraint for the entry. |
| $:77 | ATR_REF_DATA_TYPE | References an external or inherited attribute data type schema. |
| $:103 | ENTRY_VALUE | The actual payload data value carried inside the entry field. |
| $:104 | ENTRY_VALUE_DEFAULT | The fallback or default value used if the primary entry value is omitted. |
| $:107 | FIELD_VALUE_PREFIX | Prefix mask or formatting rule applied directly to the field value string. |
| $:108 | REQ_FIELD_LIST | Array or collection listing all required fields within the current context block. |
| $:111 | TAG_OWNER_ID | Explicit identifier for the domain or service that owns the registered tag. |
| $:115 | TAG_LIST | Index list or structural sequence of multiple associated DAXP tag IDs. |
| $:118 | ENTITY_DATA_TYPE_ID | Core system data type identifier code for the entity definition. |
| $:122 | FIELD_ROLE | Defines the structural or operational role of the field inside the current schema. |
| $:129 | COLLECTION_ID | Unique identifier for a grouped dataset, array, or multi-item collection block. |
| $:130 | COL_NAME | The descriptive name or key identifier for the collection instance. |
| $:132 | COLLECTION_KEY | Explicit structural mapping key used for dictionary/map collection lookups. |