docs: add seminar 19 topics

Author: isaacknjama

_posts/2025-06-21-socratic-seminar-19.md

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+---
+layout: post
+type: socratic
+title: "Socratic Seminar #19"
+---
+
+## Location
+
+The event will be hosted at **Jenga Leo**:
+
+`T Floor (Kilimanjaro room)` WESTPARK TOWERS | Mpesi Ln, Nairobi | [Map](https://maps.app.goo.gl/jA86RuyuBKcE4eA47)
+
+## Announcements
+
+Join us on our Nineteenth Bitcoin [Socratic Seminar](/about)! A special thank you to our
+sponsor [Btrust](http://btrust.tech/) for food and refreshments.
+
+## Reminders
+
+- We prefer no photos and no videos during the event
+- [Chatham House Rule](https://www.chathamhouse.org/about-us/chatham-house-rule)
+- Leave the meeting space as clean as you found it
+- Suggest topics for the next Socratic Seminar! [Where to find topics?](/about/find-topics)
+
+## Topics
+
+## Bitcoin
+
+---
+
+MC: Brandon
+
+- [BitScript](https://x.com/bitscriptapp/status/1929967063147135181?t=ieqW28cwcnzBZ1M_hLlu5w&s=19)
+
+---
+
+MC: JR
+
+- [What is Taproot?](https://www.osl.com/hk-en/academy/article/what-is-taproot)
+- [Evolution of Bitcoin under Core Leadership](https://x.com/Zatoichi42/status/1934760577353884117?t=Hzm60VaMVMrHwxnETXYjIQ&s=33)
+
+### Mining
+
+---
+
+MC: Simon
+- [Stratum v2 Case Study](https://x.com/StratumV2/status/1933192464896069721)
+
+### Lightning Network
+
+---
+
+MC: Isaack
+
+- [Lighnting Node Usability](https://x.com/lightning/status/1929947465454686235?t=ITmeL0rBPpd_I6OmjgZlHw&s=19)
+
+### Ecash & Other Bitcoin Tech
+
+---
+
+MC: okjodom
+
+- [Satochip ecash payments on Cashu](https://x.com/satochip/status/1935282712312426833)
+
+#### Upcoming Events & Announcements
+
+---
+
+MC: Sharon
+
+- [DadaDevs Workshop](https://x.com/DadaDevs/status/1933522399653179600?t=Ql_uT28r6isG8y9ZeEFghA&s=19)
+- [Africa Bitcoin Conference 4th Edition](https://x.com/AfroBitcoinOrg/status/1899747297958740126)