| Field | Description | Field Type | XML Source Path | Examples | Multivalued | Indexed | Stored | Required |
|---|---|---|---|---|---|---|---|---|
| patent-document/bibliographic-data/publication-reference | ||||||||
| pn | publication identifier | alexandria_token | ./@ucid | AP-584-A, AP584A, AP584 | x | x | ||
| xxpnctry | publication country | alexandria_string | ./document-id/country | US | x | |||
| xxpnnum | publication number | alexandria_string | ./document-id/doc-number | 5551212 | x | |||
| xxpnkind | publication kind | alexandria_string | ./document-id/kind | A | x | |||
| xxpnlang | publication language | alexandria_string | ./document-id/lang | EN | x | |||
| pd | publication date | tint | ./document-id/date | 20010101 * If no ./date is present and a document-id element exists, a default value of 00010101 is inserted. | x | x | ||
| xxpdyear | publication year | tint | ./document-id/date | 2001 | x | |||
| xxpd_d | publication date type | tdate | /search/query?q=ab_en:sonar &facet=true &facet.range=pd_d &facet.start=NOW/DAY-1YEAR &facet.end=NOW/DAY+1DAY &facet.gap=+1MONTH | |||||
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