Target namespace: http://schemas.microsoft.com/office/word/2010/wordml
An ST_LongHexNumber (as specified by [ISO/IEC29500-1:2011] section 17.18.50) attribute that specifies a version identifier for a paragraph. Values MUST be greater than 0 and less than 0x80000000. Any element having this attribute MUST also have the paraId attribute.
If two documents have the same docId, then if two paragraphs within the same respective document part (as specified by [ISO/IEC29500-1:2011] section 11.3) that have the same paraId and textId SHOULD contain identical text, although formatting could differ. See section 2.2.4 for how this attribute integrates with ISO/IEC-29500-1.
The following W3C XML Schema ([XMLSCHEMA1] section 2.1) fragment specifies the contents of this attribute.
<xsd:attribute name="textId" type="w:ST_LongHexNumber"/>