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Best proof of existence plugins for WordPress

The most popular proof of existence plugins for WordPress in November 2026, in WordPress.org’s own popular order, which follows active installs. Sigelith Timestamp leads with fewer than 10 active installs. All 1 plugins tagged “proof of existence” are below, with figures from WordPress.org that update every day.

Installs aren’t everything: a recent release, a “Tested up to” that matches the current WordPress, and support threads that get resolved show a plugin is looked after. Open any plugin for its downloads, rank history and alternatives.

Research this niche or see all plugins.

Top 1 proof of existence plugins

  1. 1.
    Sigelith Timestamp

    The most installed proof of existence plugin, with fewer than 10 active installs. No reviews yet, updated 2 weeks ago.

All 1 plugins tagged “proof of existence”