| Zone | Clé | Elément de donnée | Type | Offset | Long. | Décimales | Table de Contrôle | Description |
|---|---|---|---|---|---|---|---|---|
| VERSION | X | HIER_VERS | 0 | |||||
| OLD_NCOUNT | X | HIER_VERCT | 32 | |||||
| OLD_NODE | X | HIER_GUID | CHAR | 40 | 32 | 0 | ID univoque - 32-positions | |
| NEW_NODE | HIER_GUID | CHAR | 72 | 32 | 0 | ID univoque - 32-positions | ||
| NEW_NCOUNT | HIER_VERCT | 104 |