Verb: Identify

This verb returns the main protocol information about the repository. It is the handshake used by harvesters to verify the server identity.

• Usage: ?verb=Identify
• Entry Point: http://your-server/isis-oai-provider/oai.php

Response Analysis

The output is generated by the OAIServer.php class using parameters from oai-config.php.

XML Structure

<?xml version="1.0" encoding="UTF-8"?>
<OAI-PMH xmlns="[http://www.openarchives.org/OAI/2.0/](http://www.openarchives.org/OAI/2.0/)" ...>
    <responseDate>2023-10-27T10:00:00Z</responseDate>
    <request verb="Identify">http://localhost:9090/isis-oai-provider/oai.php</request>
    <Identify>
        <repositoryName>ABCD Library Catalog</repositoryName>
        <baseURL>http://localhost:9090/isis-oai-provider/oai.php</baseURL>
        <protocolVersion>2.0</protocolVersion>
        <adminEmail>admin@library.org</adminEmail>
        <earliestDatestamp>2010-01-01T00:00:00Z</earliestDatestamp>
        <deletedRecord>transient</deletedRecord>
        <granularity>YYYY-MM-DDThh:mm:ssZ</granularity>
    </Identify>
</OAI-PMH>

Key Configuration (oai-config.php)

• $repositoryName: The name shown in the XML.
• $baseURL: The public URL of the oai.php script.
• $earliestDatestamp: The date of the oldest record (calculated automatically from the databases if configured).
• $adminEmail: Contact for the harvester administrator.