Cryptography

**Improving Office in Franklinton** Physical location: Improving Office 330 Rush Alley Suite #150 Columbus, OH 43215 Schedule: 6:00 p.m.: Socialize, eat, and drink. Improving will be providing pizza and beverages. 6:30 to 8:00 pm. Main meeting and presentation(s). Topic: Type Annotations with John Cassidy We meet on the last Monday of each Month. Presentations are given by members and friends of this group. If you would like to do a presentation (small or large) on a python topic, please contact Central OH Python at centralohpython@gmail.com

**First meetup of the Columbus AI Engineering group.** We’ll kick things off with a practical, beginner-friendly discussion on: **How LLMs like ChatGPT actually work — and how to build real applications with them.** We’ll cover: * what’s actually happening under the hood (at a high level) * why LLMs behave the way they do (hallucinations, prompt sensitivity, etc.) * how people are building real systems with them today * where things break in practice This will be a **short, informal talk (\~15–20 min)** followed by open discussion and Q&A. Whether you’re an engineer, builder, or just curious about how modern AI systems work, you’re welcome to join. No slides, no fluff — just real conversation about real systems. We’ll hang out afterward and get to know each other.

Main Library, Meeting Room 2B Join us for a welcoming evening of reflection, gentle music, and meaningful conversation. We’ll begin with a short grounding moment, followed by a brief reading from spiritual or philosophical traditions, and an open reflection circle where participants can share (or simply listen). Libera Animae is an interfaith community focused on inner growth, creativity, and authentic connection. All backgrounds are welcome.

Join us for a flat 2.6 mile hike along the Alum Creek Trail from the rear parking lot of the Easton Hilton Garden Inn to the Strawberry Farms Park and back. This scenic trail along Alum Creek is a gem. Come and hike it with us!

This is an in-person meeting. At this meeting you will get answers to depression and anxiety. Find out the source of them and how to get rid of them. Did you know that unwanted emotions like anxiety, depression, unhappiness, loneliness, hopelessness, anger, fear, or feelings of irritation don’t just fall on you for no reason. They are not random occurrences that simply happen to people's minds. They are definitely not due to a chemical imbalance in your brain from some nebulous chemical reaction "by chance". Your negative emotions are the symptoms of the painful experiences that you have which are not healed, and which are still affecting you. The effects of these painful experiences are exacerbated by the pressures or difficulties of the other problems in your life. Come to our Meetup, where we can introduce you to some of the knowledge, tools and techniques of the breakthroughs in the field of the mind that we can apply to this ever important area of life. Be sure to click on the red "Attend" button below to come to this local event. We look forward to seeing you there. This group is created by the Hubbard Dianetics Foundation of Central Ohio and Church of Scientology of Central Ohio.

Ciao a tutt\*! Let's meet Monday at 6.30pm at the Upper Arlington Library (**Tremont** Branch) in **Meeting Room A** to speak in Italian for 1 hour.

We connect you with up to 30 Men or Women tennis partners close to your PLAYING REGION and skill level. This program is less competitive, no champions crowned, no league standings just dedicated tennis partners who want to meet up with you on the courts. Players will meet up to play a tennis match or just to hit around. Just go through the [Join Page](https://www.tenniscolumbus.com/partner-program) to enter this program. [https://www.tenniscolumbus.com/partner-program](https://www.tenniscolumbus.com/partner-program)

**✨ Give Speed Dating a Go – Meet Detroit Singles Live on Zoom!** **⚠️ HEADS UP: Clicking RSVP Isn't Enough!** You **must** sign up through one of the links below and finish the short personality quiz to confirm your place. Choose your age range and register now – **places are limited and fill quickly!** **📋 Find Your Age Range Below to Register:** - **Ages 18-32** → [REGISTER HERE](https://tempodating.com/product?productId=390&productType=onlineSpeedDating&city=Detroit&groupurlname=mosaic-mates-empowered-singles&ar=18-32&face_v=19.0) - **Ages 30-46** → [REGISTER HERE](https://tempodating.com/product?productId=390&productType=onlineSpeedDating&city=Detroit&groupurlname=mosaic-mates-empowered-singles&ar=30-46&face_v=19.0) - **Ages 40-58** → [REGISTER HERE](https://tempodating.com/product?productId=390&productType=onlineSpeedDating&city=Detroit&groupurlname=mosaic-mates-empowered-singles&ar=40-58&face_v=19.0) - **Ages 55+** → [REGISTER HERE](https://tempodating.com/product?productId=390&productType=onlineSpeedDating&city=Detroit&groupurlname=mosaic-mates-empowered-singles&ar=55+&face_v=19.0) --- 🔑 **The key to amazing first dates?** Being comfortable. Begin right here! This Zoom-hosted speed dating experience takes the anxiety out of meeting someone new. You'll have short, structured rounds with friendly Detroit singles – all from wherever you're most at ease. 🎯 **Perfect for:** - Singles searching for authentic connections beyond the apps - Anyone who thinks real chemistry begins with real conversation - People getting back into dating after a hiatus who want a gentle re-entry - Quiet or reserved singles who open up better in private conversations - First-time speed daters excited to try something different **Event Details** - **Format:** Zoom-based event – connect right from your own home - **Location:** Right from your home – no need to go anywhere at all! - **Host:** Experienced speed dating host with a knack for putting newcomers at ease - **Vibe:** A feel-good evening of laughs and connection with Detroit newcomers **How It Works** 1. **Find Your Age Group** – Locate your age range above and click to sign up. 2. **Complete the Quick Compatibility Quiz** – Helps us match you with like-minded Detroit newcomers. 3. **Hop on Zoom** – Pour yourself a drink, get settled, and let the host walk you through each round. 4. **Start Chatting** – Short, timed conversations with compatible Detroit singles. No awkward pauses! 5. **Match Results** – Find out who you clicked with. If the interest is mutual, we’ll connect you! 💡 **Pro tip:** Have a beverage ready and find a quiet, well-lit area for the best experience. **Frequently Asked Questions** **How long are the conversations?** Each round lasts a few minutes – long enough to feel a spark, short enough to keep things exciting! **Do I need to download anything?** Just Zoom! If you've used Zoom before, you're all set. We'll send you the link once you register. **What's the personality quiz for?** It helps us pair you with compatible people so your conversations are more likely to hit it off! --- ✨ Your next great connection could be just one Zoom call away. Don’t overthink it – just show up! ✨ ✨

Join us for a casual chat over coffee & tea at Grandview Grind! Come out and meet some new people, enjoy your favorite drink, and make some new friends!

Join Losing Weight in Columbus for a late morning walk at the Scioto Park! We'll meet up by the climbing wall at 12:30 and go for a moderately paced walk. We will aim to go for an hour, but can cut it shorter if needed. This will be a casual, but active walk where we chat with each other, discuss goals, and have some friendly banter along the way!

A fun way to compare wines from two different countries at a time. House Wine is squaring off two countries' wines against each other each Thursday in March. March 12, March 19, March 26, and the Finals April 2nd. Meet and Greet format....show up after 7pm, pay your $15 at the cash register, get your wine glass, and enjoy. I will get a table reserved for the group. Remember, you may bring in your own food or takeout. Attendance is your agreement to the Group's Waiver of Liability terms. See our Group homepage for details. Parking is tough at House Wine; there is a municipal lot one-half block north of the shop and sometimes parking at the lot behind Jet Pizza, accessed by the lane between the east House Wine parking lot and the residence to the east.

Join us as we get together for an Arthouse Movie Friday event to see the A24 dark comedy /romance / psychological-thriller, THE DRAMA! The film stars Zendaya and Robert Pattinson as a happily engaged couple whose relationship is challenged when one discovers unsettling truths about the other. Here are details, a trailer and our plan for this event: DESCRIPTION: The film follows a happily engaged couple whose relationship is put to the test when an unexpected turn sends their wedding week off the rails. The film comes from A24, is written/directed by Kristoffer Borgli stars Zendaya, Robert Pattinson, Mamoudou Athie, Alana Haim, Hailey Gates and Zoë Winters. QUICK WORD OF WARNING: The film hasn’t screened for critics yet and most of the details are being kept tightly under wraps. But, early buzz (possibly promotional) says the film is a brilliant psychological thriller/romance but also provocative, twisty and some contains occasional uncomfortable viewing! I love the cast and trailer, so look forward to seeing for ourselves! ZENDAYA-PATTINSON TRIFECTA CHALLENGE: Robert Pattinson and Zendaya will star in THREE movies together this year, including THE DRAMA, Christopher Nolan’s THE ODYSSEY this Summer and Denis Villeneuve’s DUNE: PART THREE at Christmas! TRAILER: [https://www.youtube.com/watch?v=6zmKcUa4Xxk](https://www.youtube.com/watch?v=6zmKcUa4Xxk) PLAN: We’ll plan for 7pm-ish showing and will meet in the lobby area about 30 minutes before showtime! Advance ticket purchase not required for this theater but early arrival is advised. Possibly post-movie get-together at the nearby Rusty Bucket! Complete details will be confirmed/announced as the date gets closer. Take care and look forward to seeing you there, Dan

**✨ Online Speed Dating – Skip the Awkwardness, Enjoy the Fun – Beginners Welcome!** **⚠️ CRITICAL: Your Place Is NOT Confirmed by RSVPing!** Follow these steps to secure entry: 1. Pick your age group below 2. Click the sign-up link 3. Finish the personality quiz **Places are extremely limited!** **🔗 Click Your Age Group to Sign Up & Take the Quiz:** - **Ages 18-32** → [REGISTER HERE](https://tempodating.com/product?productId=390&productType=onlineSpeedDating&city=Detroit&groupurlname=rose-quartz-singles&ar=18-32&face_v=6.0) - **Ages 30-46** → [REGISTER HERE](https://tempodating.com/product?productId=390&productType=onlineSpeedDating&city=Detroit&groupurlname=rose-quartz-singles&ar=30-46&face_v=6.0) - **Ages 40-58** → [REGISTER HERE](https://tempodating.com/product?productId=390&productType=onlineSpeedDating&city=Detroit&groupurlname=rose-quartz-singles&ar=40-58&face_v=6.0) - **Ages 55+** → [REGISTER HERE](https://tempodating.com/product?productId=390&productType=onlineSpeedDating&city=Detroit&groupurlname=rose-quartz-singles&ar=55+&face_v=6.0) --- 👋 **Trying speed dating for the first time?** You'll wish you'd started earlier! No prior experience necessary. No dating profile needed. Just real humans having real conversations. Our online setup makes it effortless for newcomers to connect with Detroit singles in a no-pressure environment. 🎯 **Perfect for:** - Anyone who gets anxious about packed bars or in-person events - First-time speed daters excited to try something different - Anyone who's done with swiping and craves genuine conversation **How It Works** 1. **Secure Your Place** – Choose your age range and finish the registration process. 2. **Answer a Few Quick Questions** – Our quiz helps pair you with compatible Detroit singles. 3. **Join the Zoom Session** – Log in from home and greet your host. We’ll take care of the rest! 4. **Date from Home** – Have real, meaningful mini-dates with Detroit singles – all from your sofa. 5. **Connect After the Event** – Mutual matches are shared so you can keep the conversation going. **Event Details** - **Format:** Hosted live via Zoom – guided, enjoyable, and hassle-free - **Location:** Wherever you happen to be – no commute, no parking, no fuss - **Host:** Encouraging facilitator experienced in helping first-timers enjoy speed dating - **Vibe:** Warm, authentic conversations with Detroit locals searching for real connection - **Follow-up:** Post-event match results delivered straight to your inbox - **Matching:** Driven by our personality quiz for stronger compatibility - **Privacy:** Your contact details are never shared without mutual agreement - **Icebreakers:** Entertaining prompts provided to keep chats flowing 💡 **Handy hint:** Prepare 2–3 fun questions to ask – it helps conversations flow naturally. **Frequently Asked Questions** **Do I need to download anything?** Just Zoom! If you've used Zoom before, you're all set. We'll send you the link once you register. **Is my information kept private?** Completely. Your contact details are never shared without mutual agreement. **What if my internet drops out?** No stress – our host will help you get reconnected. Technical hiccups happen and we're ready for them! **How long are the conversations?** Each round lasts a few minutes – long enough to feel a spark, short enough to keep things exciting! --- ✨ Your comfort zone is your superpower. Speed date from home and meet someone incredible! 🌹 ✨

The Humanist Monthly Program is our longest running event and still a community favorite. In the old days it used to be called "Going to HCCO" and we still like to think of it as our flagship event. We will be hearing from Becca Powell, Director of Advocacy and Outreach at Unchained At Last, an organization whose mission is dedication to ending forced and child marriage in the United States through direct services and systems change. Unchained At Last's mission clearly meshes and addresses several of our Humanist Ten Commitments. Becca will educate us about an issue many of us may not be familiar with--but should be. Food and drinks will be provided at the event. Feel free to show up a little bit early to hang out and talk. Going forward our meetings will be hybrid. You can meet us in-person or attend online Join Zoom Meeting [https://us02web.zoom.us/j/87836564953?pwd=4Mi57ElZkDIFlb1fnlNwOJ0NiOK4tP.1](https://us02web.zoom.us/j/87836564953?pwd=4Mi57ElZkDIFlb1fnlNwOJ0NiOK4tP.1) Meeting ID: 878 3656 4953 Passcode: 760812 One tap mobile +19292056099,,87836564953#,,,,\*760812# US (New York) +13017158592,,87836564953#,,,,\*760812# US (Washington DC) The formal presentation will start at noon

Come out to Improving for our monthly iOS and Mac meetings. This Month's Presentation: Nothing yet. (You should volunteer). What is Cocoaheads (http://cocoaheads.org/)? CocoaHeads is a group devoted to discussion of Apple Computer's Cocoa Framework for programming on MacOS X and iOS (including the iPhone, iPad and Apple Watch). During monthly meetings, members present on their projects and offer tutorials on various programming topics. What is BuckeyeCocoa (http://buckeyecocoa.org/)? BuckeyeCocoa is a group of Objective-C/Swift developers/enthusiasts. We host monthly Cocoaheads and near-weekly NSCoder meetings in Columbus, Ohio. The meetings are free to attend. Presentations! Presenters welcome! We are always in need of people willing to present material. Any Swift and/or Objective-C related topic is welcome. Times can be 5 minutes (i.e. lightning talks) to a maximum of 2 hours. Interested? Contact info is on the BuckeyeCocoa website. To volunteer for a presentation contact us at @BuckeyeCocoa on Twitter. Follow us on Twitter! @BuckeyeCocoa (https://twitter.com/#!/Buckeyecocoa/) For more information: http://buckeyecocoa.org/

http://photos2.meetupstatic.com/photos/event/2/a/9/6/600_348310902.jpeg Instructor - Crow, HPS Class fee is $30 at the door or approved exchange RSVP with Advance pay of $25 (discounted) by PayPal on the web or by contacting Enchanted Elements (614) 437-2642. Reservations made directly to Enchanted Elements will be added to the class list manually not online. Private Instruction ~ Closed to the Public ~ Initiated Members Only Please come prepared for ritual. Blessings ~ Crow

Pay attention! We’re delaying a week for those of you who may be on Spring break and/or celebrating the holiday. Ok, no pancakes, but waffles-a-plenty. Join the local UX and Digital Design community for a casual monthly breakfast. Look for us upstairs!

The Fellowship of the Star Schema: Transforming OLTP Data for Power BI One does not simply build reports on OLTP data. Join us on an epic journey from the depths of raw, normalized tables to the shining halls of a well-modeled star schema fit for Power BI greatness. We will demystify the differences between OLTP and OLAP, walk through star schema vs snowflake (and why Power BI has a clear favorite), and show you the compression differences between normalized and columnar storage that will make you never look at an OLTP model the same way again. We will cover the different types of dimensions, when to use them, and how to handle Slowly Changing Dimensions without losing your mind. You will leave knowing exactly how to identify a bad model, how to convert OLTP data into a clean star schema, and how to forge relationships that rule them all. Whether you are a data wizard, a curious hobbit, or somewhere in between, your models will never be the same.

Private Group. Closed to the Public Knowing ourselves and understanding our abilities is the first step toward wielding our gifts with control and accuracy. In subsequent classes we will verify and hone our talents with activities and discussion. These are hands-on workshops and participation is expected. The goal of our series will be to develop expertise in areas of particular interest such as mediumship, channeling, divination, healing and, etc.. Our ultimate directions will be determined by class members as we evolve. I look forward to sharing and discovering with you. - Cynthia

## **Columbus Bitcoin Meetup – Event** Join us for another great evening dedicated to Bitcoin, learning, and community. We will be gathering in the private room at Olentangy Brewery for an evening of conversation, education, and fellowship with fellow Bitcoiners. This special event will feature three guest speakers sharing insights from across the Bitcoin ecosystem. ### **Guest Speakers** **Lindsay Faust** Relationship Manager at River **Andrew Tilmann** CEO of the Midwest Bitcoin Summit **Carlos Estrada** Founder of Coin Vigilante In addition to speaking during the event, Andrew Tilmann will also be available for a meet and greet. This will be a great opportunity to ask questions about the upcoming Midwest Bitcoin Summit, taking place September 23 and 24 at the Columbus Convention Center. ### **Midwest Bitcoin Summit Discount** Early Bird pricing ends **April 1st**, but you can still save **21%** by using the promo code: **COLUMBUS** Use the link below to apply the discount: [https://tickets.midwestbtc.com/affiliate/columbusbitcoinmeetup/event/midwest-bitcoin-summit-2026/?promoCodeTask=apply&promoCodeInput=columbus](https://tickets.midwestbtc.com/affiliate/columbusbitcoinmeetup/event/midwest-bitcoin-summit-2026/?promoCodeTask=apply&promoCodeInput=columbus) ### **Event Details** This will be a three hour event, with speakers beginning just before 7:00 PM. There will be plenty of time afterward for networking, meeting new friends, and continuing the conversation. Food will be provided. We look forward to seeing you there! ***