<oembed><type>rich</type><version>1.0</version><author_name>Abdel (npub1hr…w2e29)</author_name><author_url>https://nostr.ae/npub1hr6v96g0phtxwys4x0tm3khawuuykz6s28uzwtj5j0zc7lunu99snw2e29</author_url><provider_name>njump</provider_name><provider_url>https://nostr.ae</provider_url><html>This is for the proof generation of the whole header chain. Not for the verification. The verification of the proof takes 50-100ms even on a small device. </html></oembed>