Cryptography

**Location:** Strategy HQ 1850 Towers Crescent Plaza Tysons Corner, VA 22182 [https://maps.app.goo.gl/GWnJA7iWFNLinSjw6](https://maps.app.goo.gl/GWnJA7iWFNLinSjw6) Join us for BitDevs DC #20, our local Socratic Seminar covering Bitcoin protocol development, security, and governance. This month we'll be discussing Bitcoin bugs, cluster mempool in Core 31.0, Silent Payments adoption, the recent maintainer shakeup, and more. Pizza provided by Strategy. **Timeline:** 5:30pm - 6:00pm : Doors open and social half hour 6:00pm - 8:30pm : BitDevs Socratic Seminar **Parking/Transport:** * 🚆 Silver Line Metro — Tysons Corner Station + walk through Tysons Corner Center mall and over the bridge to the building * 🚗 Parking available in the Tysons Corner Center mall lots adjacent to the building or in front of the building Thank you to **Strategy** for hosting!

We'll use this time to meet new GRASP members and catch up with those we already know! Look for GRASP table flyers and Eli's GRASP shirt to easily find the group. This restaurant is a fast-casual format meaning it's easy to order and pay individually! Adult beverages are available and you can expect entrees in the $15 range. The [Torchy's Tacos menu is here](https://torchystacos.com/menu/) and they offer a wide variety of tacos, burritos, salads, and excellent sides. In living by their Damn Good mantra, they’re constantly innovating to ensure they’re delivering the tastiest tacos, queso, and margaritas in the game. Their Taco of the Month promotions allow them to provide unique tacos to Taco Junkies year 'round. The ingredients make the meal. That’s why they responsibly and ethically source every single ingredient, down to the jalapeño. From there, they work hard to whip up the best damn tacos, cooked to order, just the way you like 'em.

The next NoVABeerSec event - "Informal Gathering of Security Minds Over Beer'' will be Tuesday, June 23rd, 5:30PM til 7ish at Starr Hill Tysons Biergarten (1805 Capital One Dr S Suite 1100, Tysons, VA 22102). **Venue for June:** Starr Hill Brewery / Biergarten (Outdoor) **\*\*\* The Biergarten is primarily an outdoor venue, if the weather isn't cooperating we'll shift into Brewpub located on the ground level next to Capital One Hall \*\*\*** In the early 1990s, Charlottesville native, Mark Thompson took his biology degree from James Madison University and moved to Portland, Oregon, ground zero for craft beer’s growth in America. The natural blend of art and science poured into the brewing scene inspired him to take up the craft. Working alongside brewers in Oregon and Colorado, Mark honed his own artisan beer recipes. An old friend looking to start a brewpub and music hall back in Charlottesville eventually lured Mark back to Virginia. In September 1999, they partnered to found Starr Hill Brewery out of a passion for great beer and live music. Named after the local neighborhood, the brewery shared its original space with the Starr Hill Music Hall. The historic storefront on Main Street was once home to the state of Virginia’s first craft brewing operation, Blue Ridge Brewing Company. **Additional Info:** We are an inclusive group, so if we missed anyone please let us know or if you want to bring your significant other/spouse please do. Have a great week and see you next month! Cheers, Rinaldi Rampen & Mike McCabe of @NoVABeerSec

Think you aren't flexible enough for yoga? Afraid to get onto the floor? Living with physical aches or restricted range of motion? Then this is the perfect yoga class for you! Explore your body's strengths in a fun, supportive environment while maintaining and growing your range of motion, flexibility, balance, strength, and sense of peace. All are welcome in this therapeutic class. Come ready to try new things, laugh, ask questions, and support each other. **Please reserve your spot at www.piesfitnessyoga.com**. The session is offered both InStudio and OnLine. The Zoom link for the OnLine session will be emailed 15 minutes before class starts to those who are registered at www.piesfitnessyoga.com. **Sign up for sessions must be made at least 2 hours prior to class.** The address is 1322 Prince St Alexandria, VA 22314 Our entrance is located on the side of the building, parallel to West St. **Street parking is available and additional parking is located at Shiloh Baptist church, spaces 36,37,38,39.** The church is located across the street from the studio, on the corner of Duke St. and West St. Discount is available to seniors, teachers, students, emergency responders, and military. All can save by purchasing class packs.

**Curious about Bitcoin but tired of the hype, the jargon, and the noise?** Join us for the very first meetup of **Wealth Building and Alternative Investments** — an evening built for everyday investors who want to understand Bitcoin clearly and, just as importantly, learn how to hold it safely. Whether you already own some Bitcoin, are thinking about your first purchase, or just want to understand what all the fuss is about, this session meets you where you are. No prior experience needed. **What we'll cover:** * Why money keeps changing — and what inflation and rising debt mean for your savings * What actually makes Bitcoin different from the thousands of other "cryptos" out there * The crucial difference between *owning* Bitcoin and holding an IOU (the lesson FTX taught the hard way) * ETFs vs. true ownership — what you really have when you "own" Bitcoin * How to store and secure your Bitcoin so your keys are truly yours * Practical first steps you can take right away **About our speaker:** Niko Stines is a Bitcoin security consultant and the founder of Hard Block Consulting. Drawing on nearly a decade in the Bitcoin industry, he specializes in helping everyday investors understand and secure their Bitcoin — without the hype or the jargon. His work centers on a simple idea: self-custody is a skill anyone can learn, and owning your keys is the difference between holding Bitcoin and holding a promise. Come with your questions. Leave knowing more than most investors ever will. ☕ Free to attend · All experience levels welcome 🗓️ Tuesday, June 23, 2026 · 6:00–8:00 PM 📍 The Wonderland Ballroom · 1101 Kenyon St NW, Washington, DC 20010

Discover the power of your breath to manage your mind and experience instant peace & calm. Join a 60-minute free Workshop and get a glimpse of the Sudarshan KriyaTM- The breathing technique that is revolutionizing the lives of millions. What you’ll discover at ‘Beyond Breath’ ✔ A taste of the Sudarshan KriyaTM, a breathing technique taught in the Happiness Program ✔ An instant energy booster that awakens & relaxes your mind - Take it home and practice daily! ✔ The peace & calm of a unique guided meditation ✔ Secret keys to manage your mind ✔ The power of surrounding yourself with positive, like-minded people. You can use your breath to master your thoughts and emotions - the key to managing the quality of your day. The Happiness Program At the end of this workshop you may enroll into the Happiness Program (3 days, 3 hours each day) to learn the Sudarshan KriyaTM, a science-backed, rhythmic breathing technique through which you can: Tap into a reservoir of energy and use it as you please! Relieve deep-rooted stresses and anxieties Uplevel your productivity Overcome emotional blocks, move on from past events and shed limiting beliefs Heal your body & gain power over your mind Experience the true state of meditation Learn more about the Happiness Program & the Sudarshan KriyaTM in our introductory workshop 'Secrets to Meditation'. Instagram: artoflivingDMV aolf.live/secretstomeditation

Discover the power of your breath to manage your mind and experience instant peace & calm. Join a 60-minute free Workshop and get a glimpse of the Sudarshan KriyaTM- The breathing technique that is revolutionizing the lives of millions. What you’ll discover at ‘Beyond Breath’ ✔ A taste of the Sudarshan KriyaTM, a breathing technique taught in the Happiness Program ✔ An instant energy booster that awakens & relaxes your mind - Take it home and practice daily! ✔ The peace & calm of a unique guided meditation ✔ Secret keys to manage your mind ✔ The power of surrounding yourself with positive, like-minded people. You can use your breath to master your thoughts and emotions - the key to managing the quality of your day. The Happiness Program At the end of this workshop you may enroll into the Happiness Program (3 days, 3 hours each day) to learn the Sudarshan KriyaTM, a science-backed, rhythmic breathing technique through which you can: Tap into a reservoir of energy and use it as you please! Relieve deep-rooted stresses and anxieties Uplevel your productivity Overcome emotional blocks, move on from past events and shed limiting beliefs Heal your body & gain power over your mind Experience the true state of meditation Learn more about the Happiness Program & the Sudarshan KriyaTM in our introductory workshop 'Secrets to Meditation'. register: http://aolf.live/introSKY

Join the Bitcoin District Book Club! We meet every month to explore new and exciting rabbit holes by reading books that are popular with bitcoiners. Join us for a deep dive into *The Deficit Myth: Modern Monetary Theory and the Birth of the People's Economy* by Stephanie Kelton. In this session, we’ll explore one of the most controversial and influential economic ideas of the past decade—and what it means for government spending, inflation, taxation, and the future of money. Kelton challenges the conventional view that governments must balance their budgets like households. Drawing on the principles of Modern Monetary Theory (MMT), she argues that countries that issue their own currency are not constrained by tax revenue or borrowing in the same way individuals, businesses, or local governments are. Instead, the real limits on government spending are inflation and the availability of real-world resources. We'll discuss the core claims of MMT, including whether deficits are actually harmful, why governments issue bonds, the role taxes play in the economy, and how policymakers should think about public investment. We'll also examine the major criticisms of MMT and consider how Kelton's ideas relate to Bitcoin, sound money, inflation, and fiscal policy. Whether you view MMT as a revolutionary framework or a dangerous justification for endless money printing, *The Deficit Myth* provides one of the clearest explanations of the ideas shaping modern debates about deficits, inflation, and government spending. For those interested in economics, monetary systems, public policy, and competing visions of how money works, this book offers a provocative challenge to many widely held assumptions. Buy the book on [Amazon](https://a.co/d/0jgks9ZG) **Event Notes:** * Discussion Starters: We'll kick things off with a few key questions around deficits, inflation, government spending, and Modern Monetary Theory, but feel free to bring your own perspectives. * Future Reads: Let us know if you have recommendations for future book club selections! We'll add them to the list posted [on our website](https://bitcoindistrict.org/bookclub). * Afterwards: Feel free to join us at PubKey after the meeting to hang out, continue the conversation, and grab some food! **Getting There:** * 📍 Teaism – Penn Quarter * 🔴🟢🟡 Gallery Place/Chinatown + 2 min walk * Parking: Street & garage parking available nearby

THIS CLASS IS OFFERED THROUGH CAPITAL PHOTOGRAPHY CENTER **PLEASE REGISTER WITH CAPITAL PHOTOGRAPHY CENTER, NOT MEETUP!** https://capitalphotographycenter.com/classes/class/2026-06-28-exploring-macro-photography Small subjects or little pieces of a larger subject are fascinating to explore with your camera. This class will teach you about the technical and creative aspects of successful close-ups. Learn how to work with different natural lighting conditions, as well as what equipment is most useful. The skills you will learn can be applied to any subject of macro photography, at home or in the field. Learn about: * Equipment options * Choosing the best aperture * Working with background elements * Maximizing depth of field * Precise focusing techniques * Modifying light with diffusers and reflectors Recommended Equipment: * DSLR or mirrorless camera * Close-up gear (at least one of the following): macro lens, extension tubes, or screw-on close-up lens * Lens(es) within the range 100-300mm * Circular polarizer (if you have one) * Optional: diffuser and reflector As per the new rules at the Botanic Garden Conservatory, only 2 tripods can be used at a time but students will take turns so everyone gets the opportunity. Questions about this class can be directed to Marie Joabar at info@capitalphotographycenter.com. Class Limit: 8-9 *** **THIS CLASS IS OFFERED THROUGH CAPITAL PHOTOGRAPHY CENTER** https://capitalphotographycenter.com/classes/class/2026-06-28-exploring-macro-photography

Cover6 Community — June Meet & Greet The technical series is heating up — and so is the summer calendar. Join us for our June Meet & Greet before the community heads into a packed July (and DEF CON season in August). 🎯 What to Expect \- Network with Cover6 Community members \- Preview of the July sessions \- CyberjutsuCon preview — Tyrone will be training there; get the inside track \- Open Q&A — bring your lab questions\, your career questions\, your cert questions No slides. No lecture. Just the community getting together. 🔗 Stay connected: \- Cover6 Solutions: [https://www.cover6solutions.com](https://www.cover6solutions.com) \- YouTube \(live streams \+ replays\): [https://www.youtube.com/@Cover6Solutions](https://www.youtube.com/@Cover6Solutions) \- Courses and certification prep: [https://cover6solutions.com/courses/](https://cover6solutions.com/courses/) ✏️ Submit a talk, workshop, or lightning talk idea: [https://www.papercall.io/cover6community](https://www.papercall.io/cover6community) **Rep the community →** [https://www.cover6solutions.com/product/cover6-shield-unisex-t-shirt/](https://www.cover6solutions.com/product/cover6-shield-unisex-t-shirt/) Grab a Cover6 Shield tee and show up repping the community that helped get you here. **Help cover the tab →** Help keep Cover6 Community events free. Every dollar helps cover the tab, so more people can show up.

THIS CLASS IS OFFERED THROUGH CAPITAL PHOTOGRAPHY CENTER **PLEASE REGISTER WITH CAPITAL PHOTOGRAPHY CENTER, NOT MEETUP!** https://capitalphotographycenter.com/classes/class/2026-06-28-creative-phone-photography-chinatown-penn-quarter Learn smartphone camera settings for creative images. From essential techniques for exposure, to composition and focusing tips in this vibrant DC area. We begin outdoors at the National Portrait Gallery and then explore the surrounding Chinatown/Penn Quarter area with its quirky architecture and street scenes. The class will start with basic instruction on the operation of the native mobile phone’s camera. We’ll then cover some of the more advanced features of setting focus and exposure independently. We’ll explore how to turn the mobile camera’s limitations such as one lens, fixed aperture, no zoom and a small sensor to advantages using creative techniques of focus, exposure and composition. You’ll create pictures on an easily paced photo walk with guided instruction coupled with gentle critique and suggestions to make your pictures the best they can be. This class is designed for users of iOS and Android mobile devices. Participants will need to bring a fully charged phone. Questions can be directed to Marie Joabar at info@capitalphotographycenter.com Class limit: 8-10 *** **THIS CLASS IS OFFERED THROUGH CAPITAL PHOTOGRAPHY CENTER** https://capitalphotographycenter.com/classes/class/2026-06-28-creative-phone-photography-chinatown-penn-quarter

[Book Your Classes by Clicking This Link! ](https://crowndancestudio.com/group-classes/) Friday: Advanced Expression End the work week with high-energy **Advanced Rhythm** from **7:00 PM to 8:30 PM**. This session dives deep into the technicalities of Latin and Ballroom styles like Rumba, Samba, or Mambo, designed for dancers who value precision and artistic expression. For $25, you'll receive intensive instruction that pushes your physical boundaries and refines your competitive or performance edge in a high-vibe atmosphere. **When: Every Friday** **Time: 7:00 pm to 8:30 pm.** **1 Dances per month:** **\*Please check the flyer on the group class page for the dance of the month. Or contact us to find out.** **Cost:$25 per person for 90 min.**

\*\*NOTICE: The park is open for Sunrise Opening at 5:15 AM \*\* [https://www.novaparks.com/parks/meadowlark-botanical-gardens/events/sunrise-in-the-gardens-515am-opening](https://www.novaparks.com/parks/meadowlark-botanical-gardens/events/sunrise-in-the-gardens-515am-opening) From the website: Sunrise is the perfect time for a peaceful walk, birding, or nature photography. Meadowlark Botanical Gardens will open at 5:15am for guests to enjoy nature in the early morning hours. Please note: * Regular admission ($5-$9) and memberships apply. * Posed photography reservations are not available during extended hours. * These extended hours may be cancelled in the event of inclement weather. Please check [Meadowlark's Facebook page](https://www.facebook.com/MeadowlarkGardens/) or novaparks.com for an inclement weather alert or call 703-255-3631 x0. * We will meet at the visitor center. Bring Water, a tripod, comfortable shoes, fully charged batteries, and empty cards There is no specific route in this park. Folks are free to wander around the trails in the park at their own pace. Check out Rob Trek's video from May 16, 2021: [https://youtu.be/QwNR_TuxM4Y](https://youtu.be/QwNR_TuxM4Y) For breakfast, after the field trip around 8:30 AM, we will head to The Virginian Restaurant, 169 Glyndon St SE, Vienna, VA 22180 Share only your very best, most interesting shots after the field trip, and keep it down to between 5 and 10 photos. Beauty, conservation, education, and discovery flourish throughout the year at this 95-acre complex of large ornamental display gardens and unique native plant collections. Walking trails, lakes, more than twenty varieties of cherry trees, irises, peonies, an extensive shade garden, native wildflowers, gazebos, birds, butterflies, seasonal blooms, and foliage create a sanctuary of beauty and nature. https://www.nvrpa.org/park/meadowlark_botanical_gardens/ By sending in an RSVP and joining this meetup event hosted by the Virginia Beltway Photography Meetup, I am also agreeing to the terms of the following release and waiver of liability, which shall be binding on my heirs, executors, administrators, successors, and assigns. In consideration of my (and my child’s) participation in the Virginia Beltway Photography Meetup, I do hereby release, discharge, and hold harmless the Organizer, its members, officers, directors, employees, and the leader(s) of this event from any and all liability by reason of any damage, loss, expenses, or injury arising from my (and my child’s) participation in this event, including that caused solely or in part by the fault of any and all of the above-named parties.

Danceintime runs Cuban Salsa Classes & Social Dancing Every Saturday, all year-long. Come at 1:15 pm to sign in. Stay till 4 pm. Some of us go out for coffee or a bite to eat afterwards and everyone is welcome! $15/person. Cash, PayPal, Venmo, Apple Pay, or Card accepted. Chevy Chase Baptist Church; 5671 Western Ave. NW; Washington DC 20015. NOTE: Enter through back corner door of the church. Danceintime classes are great fun. The dance moves are beautiful, fun, and our class creates a bonded community... Check it out! Class will be held every Saturday in December....celebrate the holidays with dance! For more info: danceintime.com/classes Questions? Contact Barbbernsteintalks@gmail.com

We've moved to guild.host Look for us there. https://guild.host/events/buckeye-cocoaheads-nscoders-tcbrk5

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

**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: This month Chris Pazsint will be talking about Agentic Coding. How does one use CLI Based Agents, and Agentic IDEs such as Cursor, Kiro, Antigravity? How to include agentic coding plugins for IDEs you already love such as Visual Studio Code. 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

This presentation will be by Ben Iten, humanist chaplain and HCCO Board Member. Speaking on expressing Humanism values in American democracy. This meetings will be hybrid. You can meet us in-person or attend online. The formal presentation will start at noon. Food and drinks will be provided at the event. Feel free to show up a little bit early to hang out and talk. 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. 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)

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)

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

*Sorry for the 2 month break but I had to deal with some family member health issues, but we are now back!!* **LOCATION - THE DAILY GROWLER -** **2812 Fishinger Rd, Upper Arlington, OH 43221** Over the years, we’ve heard two requests constantly: 1. A place that was quieter and possibly private. 2. “I wish they accepted Bitcoin.” We’ve finally found a solution to these requests with The Daily Growler. We’ll have access to their private room, and you’ll be able to pay your tab with Bitcoin. Join us for a fun and relaxed social event! Enjoy delicious food and drinks as we chat about the latest news in the Bitcoin world. Everyone is welcome, whether you're looking for guidance, have questions, or just want to meet like-minded people. These social evenings are a great opportunity to make new friends and enhance your experience at the larger events throughout the year. We look forward to seeing you there! PSA: If the attendee RSVP seems low, keep in mind that most of our attendees come from X and not [meetup.com.](http://meetup.com./) You are welcome to come and become a part of our online community. Recordings of past guest speakers are available on our YouTube channel [https://www.youtube.com/@columbusbitcoin](https://www.youtube.com/@columbusbitcoin)