Cryptography

Looking for a new skill? Want to seem mysterious when people ask about your hobbies? Enjoy puzzles? Lock picking might be right for you! Is this legal? Yes! Is it fun? Yes! The meeting is very casual, come and go as you please. We meet in the upstairs area of Board Room. No payment, skills, tools, or RSVP necessary. If you can make small precise movements with your hands, you can learn to pick locks. Introductory talk at 7pm. All are welcome. We meet in a bar but minors are allowed to attend. We are not in a private room; parental discretion advised. If you are a minor or are responsible for one who's attending, please email the organizer in advance at chapter-DC@toool.us Open invite; bring friends! We are the DC chapter of TOOOL. More information here: http://toool.us/

### **The Greenbelt Chapter** **Where curiosity meets community.** The **Greenbelt Book Club** is a welcoming neighborhood gathering dedicated to exploring diverse perspectives through the power of literature. Whether you’re a lifelong reader or looking to rediscover the joy of books, we offer a space for meaningful dialogue and connection. *** ### **What to Expect** Our gatherings are casual, engaging, and centered on shared discovery. Every month, we dive into new selections—ranging from contemporary fiction and historical deep-dives to thought-provoking non-fiction. * **The Discussion:** We move beyond simple "likes" and "dislikes" to explore the themes, characters, and bigger questions each book raises. * **The Atmosphere:** Expect a low-pressure environment where every voice is valued. You don’t need to be a literary critic to participate; you just need an open mind. * **The Connection:** We are all about building local friendships. It’s a great way to meet neighbors who share a love for learning and storytelling. *** ### **Meeting Details** * **When:** Every **Wednesday and Friday** * **Time:** 5:00 PM * **Where:** 9200 Edmonston Road, Greenbelt, MD 20770 *** ### **How to Join** Joining is easy! Simply show up at our meeting location at the times listed above. No long-term commitment is required—feel free to drop in for a single session to see if it’s a good fit for you, or join us every week. **We can’t wait to turn the page on a new adventure with you!**

**👉 Please [RSVP on Luma](https://luma.com/pubkey-aqxx)** Strategy holds more bitcoin than any other public company on earth, and along the way it's become one of the most talked-about, and most polarizing, names in both finance and Bitcoin. Join us at PubKey for a candid conversation with two people living inside that story: **CJ (Chaitanya Jain)**, Strategy's Head of Investor Relations, and **Ella Hough**, who leads Bitcoin advocacy at the company. ​ Moderated by **John Balkam**, CMO of [Sovreign](https://sovreign.io/?utm_source=luma), the discussion goes behind the headlines into what it's actually like to execute the Bitcoin Treasury playbook in real time. CJ and Ella will talk about working alongside leaders like executive chairman Michael Saylor and CEO Phong Le, navigating Strategy's role as a lightning rod for both believers and critics, and the personal convictions that brought them to the company. Expect a frank look at the strategy, the scrutiny, and the people behind the world's largest corporate Bitcoin bet. **👉 Please [RSVP on Luma](https://luma.com/pubkey-aqxx)** ​**About the Bitcoin District Initiative** This event was organized by The Bitcoin District Initiative, a 501(c)(3) nonprofit working to build a grassroots Bitcoin circular economy in Washington, DC through education, business onboarding, and community outreach programs. If you’d like to get involved or support the Initiative, visit [bitcoindistrictinitiative.org](https://bitcoindistrictinitiative.org/?utm_source=luma).

Let's get outside on the MBT for a brisk walk. As it's getting cold, we'll be keeping a slightly faster than social pace walk to keep ourselves warm. We'll walk down the MBT from Brookland to NoMa and back (about 3 miles total). Please check the weather to make sure you're dressed warm enough! See you there!

### Build with blocks! Are you interested in building with LEGO® bricks? Aurora Hills Library is the place for it! Whether you're reclaiming a favorite activity from childhood, love visiting the LEGO® store, or wanting to see what the fuss is all about - you're welcome to join us! We have LEGO® bricks you can free build with, and plenty of space for you to work on an existing project. *Attendees can bring their own LEGO® sets if they want to work on a specific set, but we will have plenty of LEGO® bricks to arrange in any way you wish. For adult patrons only.* **REGISTRATION RECOMMENDED: By registering, you will receive event updates. Register at https://arlingtonva.libcal.com/event/16340428** *For more information, contact 703-228-5715.*

Our NEIGHBORHOOD GEMS series features emblematic meals from around the world. This series shines a light on local restaurants and is designed to bring together inquisitive foodies and dishes that are unique and oh so worth a trip on roads less traveled! Join us for authentic Hunan & Szechuan dishes at ***Chef Tan***! **From Washington Post** Chef Tan invites diners to experience the tongue-tingling pleasures of one of China’s great cuisines in an understated Vienna strip mall. When Chef Tan opened in Vienna last July, the restaurant had no website and initially offered neither takeout nor delivery. Albert Yang, the restaurant’s regional manager, believed that diners should experience Hunan cooking at its freshest and most vibrant. “If you pack it to deliver, the color, the oil, the meat will change,” he says. This was a sacrifice he wasn’t willing to make, even if it meant losing business. Because of the low-key opening, I didn’t get wind of Chef Tan until February. Others had clearly beaten me to the punch. On my first visit, all but the large banquet tables in the handsome, wood-paneled dining room were occupied by chattering friends. Soon, my own table filled. Thinly sliced pork belly buried under waxy, modestly spicy green peppers. Morsels of chicken sweetly perfumed with ginger and surrounded by chopped red chiles packing merciless, browbeating heat. Tender slivers of lamb, ornamented with grassy cilantro and mild, neatly diced red peppers. As I inhaled steam abundant with chopped chiles, pungent fermented peppers and dark, sharp vinegar, I understood Yang’s stubbornness. This was not food destined for a takeout container. I floated back to the parking lot, in awe of the mastery quietly playing out between a paint supply store and a beer and wine shop in this Northern Virginia strip mall. When your server arrives with a mortar and pestle, it initiates a little table theater at Chef Tan. They slowly agitate the contents of the bowl, breaking through a layer of finely chopped green chiles and fermented bean curd to reveal strands of eggplants and wobbling, jet-black “century” eggs. If you’re unfamiliar, they’ll explain each ingredient, talking you through the curing process that gives these eggs their striking color and butter-rich texture. “Instead of just providing the best taste, we also want to show some culture and immersive experience,” says Albert Yang. In a region where these chile-prickling, ferment-tingling dishes are nearly impossible to find, Chef Tan serves each one with a sense of great duty. If this is your first taste of Hunan cooking, you should love it. And Chef Tan is easy to love. Owner Kevin Tan hails from the riverside city of Hengyang, as do many of the restaurant’s cooks, and dishes from their hometown shine. In lufen, springy rice noodles come in a concentrated stock warmed with anise and cinnamon, laid with thin strips of beef shank and a handful of crunchy peanuts. In another dish, the noodles float in a light seafood stock lit with green chile heat and packing seasonal vegetables and fillets of dense, flaky fish. Yang says his homesick friends once drove as far as New York for a taste of home. Chef Tan brought relief. Though the menu includes a small section of Chinese American standbys, the best way to orient if you feel a little lost is to take stock of what neighboring tables are eating and follow their lead. This is how I first came to know the pleasure of little river snails stir-fried with pickled long beans and the grassy nuances of tender lamb cooked with cilantro. Best of all, after four visits to my new favorite Chinese restaurant, I’ve barely scratched the surface. **Check out the menu** **[here](https://pos.chowbus.com/online-ordering/store/Chef-Tan/22196)** Separate checks will be arranged in advance. All diners will settle their own tabs. We ask that ALL folks honor their RSVP. If you are unable to attend after sending in a YES, please update your status so that others may join and help us support local businesses. In the event our group incurs a fee for no-shows / late cancellations, your ability to RSVP for future events will be restricted. Thank you in advance for your understanding. To enhance the opportunity for great conversation, we will continue to limit the group size. Please feel free to sign-up to meet us along with up to 2 friends. **\*\*** **WAITLIST:** Meetup does not allow waitlists for paid events. *If this event fills and you would like to be added to the waitlist, please send a note to the host through the Meetup app. **\*\**** In the future, we will vary the days of the week and the types of restaurants to keep events interesting. PLEASE MAKE SURE YOU ARE COMMITTED TO GO WHEN YOU RSVP FOR THIS EVENT. Feel free to make suggestions for future meet locations. \*\* The small non-refundable registration fee helps us share the cost associated with the Meet-Up platform ($360/yr) and reduces the likelihood of no-shows, allowing us to better plan our events and accommodate all participants. Meetup charges $0.51 and Paypal charges $0.53 on the $2 registration fee. Thanks in advance for your understanding!\*\* If you are unable to join us in June, we hope you'll stay interested and join us for a meal in the future. Looking forward to catching up with you for an wonderful dinner at Chef Tan!

[Book Your Classes by Clicking This Link! ](https://crowndancestudio.com/group-classes/) Mid-week is for the experts with **Level 3 Bachata (7:45 PM)** and **Level 3 Salsa (8:30 PM),** followed by a **Social Dance Party at 9:15 PM.** These advanced classes challenge experienced dancers with intricate footwork and styling, emphasizing the joy of high-level performance. **The evening costs $25 for the classes and social**, providing an inclusive space where advanced students can sharpen their craft and immediately practice their moves with peers. 7:45 Bachata (Level 3) 8:45 Salsa (Level 3) $18 for 1 Class $22 for 1 Class + Social $25 for 2 Classes + Social $10 for Social Only

THIS CLASS IS OFFERED THROUGH CAPITAL PHOTOGRAPHY CENTER **PLEASE REGISTER WITH CAPITAL PHOTOGRAPHY CENTER, NOT MEETUP!** https://capitalphotographycenter.com/classes/class/2026-06-07-iphone-photography Learn to use the iPhone camera and the settings for creative image captures. Join Michael Koren at the National Gallery of Art and learn techniques for exposure, composition and focus. Tap into your creative side through smartphone photography. Using our iPhone cameras, we’ll explore the Museum's offerings from abstract sculptures, colorful paintings and wall hangings, to the architecture of the building as well. We’ll find endless photographic opportunities perfect for iPhone photography. We’ll start with the basics of learning to use the iPhone camera and review the settings for optimal image capture to pro tips and techniques that produce the best results. The number of photography apps available seems endless and can be very confusing when trying to choose what to purchase. Michael will cover one of the most exciting apps for image processing so you can achieve your artistic vision. This class is designed for users of iOS mobile devices. The app info will be included in your confirmation letter (the app is free). Topics include: • Proper techniques and settings for iPhone image capture • Tips and techniques for using the iPhone’s native camera • Learn exciting editing tools • Hands-on capture and editing • Image critique and feedback For more information about the Gallery, visit their website, https://www.nga.gov/index.html Participants will need to bring a fully charged iPhone. A charger is a good idea too as photos quickly drain the batteries. Questions can be directed to Marie Joabar at info@capitalphotographycenter.com. *** **THIS CLASS IS OFFERED THROUGH CAPITAL PHOTOGRAPHY CENTER** https://capitalphotographycenter.com/classes/class/2026-06-07-iphone-photography

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 3,5,7,9.** 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.

Date: June 7 2026 Sunday 10:00 am - Noon EDT Full title: Machine Learning for Reliable Quantum Computing: An Algorithm–Hardware Co-Design Perspective Summary: Reliable quantum computing requires co-design across the full stack, including algorithm structure, compilation, and execution, rather than isolated optimization of any single layer. This talk presents a unified framework in which these layers are jointly optimized under realistic hardware constraints. Structure-aware compilation exploits algorithmic interaction graphs to reduce circuit depth; joint optimization across mapping, term ordering, and algorithm parameters yields significantly improved success probability; and execution-layer analysis reveals that error mitigation effectiveness depends critically on circuit symmetry and native gate choice. While demonstrated on superconducting quantum processors, the underlying co-design principles are potentially transferable across architectures. Building on this foundation, the talk highlights machine learning as the key enabler for closing the feedback loop: data-efficient, parameterized noise models learned directly from workload execution data achieve substantially improved predictive fidelity over vendor models without the overhead of dedicated characterization. These insights situate the co-design perspective within the emerging framework of quantum deep learning. In this broader setting, the talk also presents an operational definition, a unifying taxonomy, and a benchmarking protocol grounded in explicit resource contracts. Speaker: Dr. Yanjun Ji has an interdisciplinary research background in Physics and Computer Science. In 2020, she completed my Master's degree in Theoretical Physics at Saarland University. In 2024, she earned her Ph.D. in Computer Science at the University of Stuttgart. She is currently a postdoctoral researcher at Forschungszentrum Jülich. She is committed to interdisciplinary research at the cutting-edge convergence of quantum computing and artificial intelligence. Her research encompasses both foundational theoretical investigations and the development of practical applications, aiming to serve society and benefit humanity. Moderators: Dr. Pawel Gora, CEO of Quantum AI Foundation [Quantum AI Foundation](https://www.qaif.org/ "https://www.qaif.org/") Dr. Sebastian Zajac, member of QPoland [QPoland - QWorld](https://qworld.net/qpoland/ "https://qworld.net/qpoland/")

SMT is hosting a Summer Faculty Concert Series to celebrate the traditions we love and to give the community a chance to see some of our illustrious teachers in action. This series is also a great chance for teachers to mix things up and collaborate with other teachers who they may not usually have a chance to perform with. The first concert will feature Bebe Blumenthal, Jonathan Vocke, Luke Chohany, and Justin Heath in a night of old-time and bluegrass. Tickets are free but donations are welcome. Seating is limited so please rsvp and let us know if your plans change. RSVP for tickets: [https://square.link/u/yWHUtaXD](https://square.link/u/yWHUtaXD?fbclid=IwZXh0bgNhZW0CMTAAYnJpZBExOGlHakFSbXNyakdseEZwdXNydGMGYXBwX2lkEDIyMjAzOTE3ODgyMDA4OTIAAR56pTrGKzf6RVLMGHYETStlvbtWD_UwD4L8vn70fNymhDztgbz3BL63s4Ouxw_aem_NvI3ijasdDocchMJeGzC1w)

DC Code and Coffee is an inclusive, informal co-working session. It's community-led and community-run by devs, for devs. People of all skill levels attend. Whether you’re dev-curious, aspiring, or a professional developer, we’d love to have you! Come chat or learn to code on a Sunday afternoon with coffee and cool-inclusive people. Bring your laptop! We typically meet every month on the weekend. **Join our online community!** For all things Tech in DC and to get latest updates and tech events from the DMV area, join the [DCTech Slack](https://dctech.chat/). All DC Code & Coffee announcements are in the #dccodecoffee channel **How it works** Near the beginning of the event, we do an introduction circle. You say your name, what you can help others with, and what you would like help with. You can also share job opportunities. After the introduction circle, everything is self-organized.

[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.**

We have moved to guild.host. Look us up there. https://guild.host/events/buckeye-cocoaheads-rcavwd

I have been studying the question of "self" online with Prof. Ellie Anderson and so I thought a prompt on the "self" might be interesting. Full confession: I had Claude create this prompt and I like it, so here goes: Imagine a thought experiment that merges two classic puzzles: > You undergo a procedure, performed neuron by neuron, in which every biological component of your brain is replaced with a functionally identical synthetic substitute. At each step, your behavior, memories, and personality remain unchanged. When the last neuron is swapped, is the consciousness experiencing the world still you? And — more pressingly — was there ever a continuous "you" to begin with? ### Questions to Wrestle With * If consciousness is purely physical, does the *gradual* nature of the replacement matter, or is it equivalent to being destroyed and rebuilt? * Could there be a "self" without continuity of experience — even moment to moment, while you sleep? On a more practical level, consider the simpler case first: **hemispherectomy** patients — people who have had an entire cerebral hemisphere surgically removed — often retain a strong sense of personal identity and continuity. This suggests "you" are not rigidly tied to specific physical material. But does that vindicate the synthetic neuron case, or merely show that identity is more *flexible* than we thought — not that it can survive *complete* substrate replacement? I used Claude so I could get this out today and let everyone have some time to consider it. Hope to see you at the Oracle. Sorry about the location change two weeks ago. That's what I get for trusting local weather predictions!

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

*Note: this is a demonstration event only, you **will not** shoot you own images. However, if you bring your camera we can test it for compatibility with the studio lights.* Bondage elements can add an extra layer of emotion and artistry to your images. Sample images on the internet are however dominated by BDSM style shots that are often sexualized and emphasize the model being in distress. In this demonstration Rachel and I show ways to use bondage elements in an artistic way. We explore the types of accessories that work best in artistic images and the best way to photograph them. Our model is Rachel Adams, an internationally known fetish model with many years of experience in this genre.

Topic to be announced. **THANK YOU** *Franklin University* for hosting our meetup! To learn more about *Franklin University*, please visit their website: https://www.franklin.edu/ **DIRECTIONS** Franklin University Fisher Hall 300 E. Main St, Columbus, OH 43215 Map: https://maps.app.goo.gl/jxjBA2hUmS5qrvhq8 Parking is FREE! Please park in Lot C in front of Fisher Hall. See attached map. NOTE: Map the address only. When mapping with Google Maps it may use the Fisher Hall at OSU, which is NOT correct. **Want to sponsor the pizza and/or bar tab?** Please contact me if you would like to sponsor this meetup's pizza and/or bar tab: angelo@mandato.com

**💗 Tampa Virtual Speed Dating — Hosted on Zoom** Meet Tampa singles from home in short, hosted one-on-one rounds on Zoom. We match by age and personality. **Pick your age group and register:** - **Ages 18-32** → [REGISTER HERE](https://tempodating.com/product?productId=531.0&productType=onlineSpeedDating&city=Tampa&groupurlname=find-authentic-connections-through-group-outings&ar=18-32&face_v=2.0) - **Ages 30-46** → [REGISTER HERE](https://tempodating.com/product?productId=531.0&productType=onlineSpeedDating&city=Tampa&groupurlname=find-authentic-connections-through-group-outings&ar=30-46&face_v=2.0) - **Ages 40-58** → [REGISTER HERE](https://tempodating.com/product?productId=531.0&productType=onlineSpeedDating&city=Tampa&groupurlname=find-authentic-connections-through-group-outings&ar=40-58&face_v=2.0) - **Ages 55+** → [REGISTER HERE](https://tempodating.com/product?productId=531.0&productType=onlineSpeedDating&city=Tampa&groupurlname=find-authentic-connections-through-group-outings&ar=55+&face_v=2.0) **⚠️ Important: RSVP ≠ registration.** To join, pick your age group below and complete the quiz. Capacity is limited. --- **How It Works** 1. **Register** – Pick your age group above and sign up. 2. **Take the quiz** – Short personality quiz so we can match you well. 3. **Join on Zoom** – Your host will guide you through every round. 4. **Get matches** – Mutual matches sent after the event. --- ✨ Sign up, take the quiz, and meet Tampa singles tonight. 💕 ✨

**🫶 Miami Online Speed Dating on Zoom** Join from home and meet real Miami singles in guided one-on-one Zoom rounds. Matched by age and personality. **Register below for your age group:** - **Ages 18-32** → [REGISTER HERE](https://tempodating.com/product?productId=531.0&productType=onlineSpeedDating&city=Miami&groupurlname=find-authentic-connections-through-group-outings&ar=18-32&face_v=2.0) - **Ages 30-46** → [REGISTER HERE](https://tempodating.com/product?productId=531.0&productType=onlineSpeedDating&city=Miami&groupurlname=find-authentic-connections-through-group-outings&ar=30-46&face_v=2.0) - **Ages 40-58** → [REGISTER HERE](https://tempodating.com/product?productId=531.0&productType=onlineSpeedDating&city=Miami&groupurlname=find-authentic-connections-through-group-outings&ar=40-58&face_v=2.0) - **Ages 55+** → [REGISTER HERE](https://tempodating.com/product?productId=531.0&productType=onlineSpeedDating&city=Miami&groupurlname=find-authentic-connections-through-group-outings&ar=55+&face_v=2.0) **⚠️ Important: RSVP ≠ registration.** To join, pick your age group below and complete the quiz. Capacity is limited. --- **How It Works** 1. **Register** – Pick your age group above and sign up. 2. **Take the quiz** – Short personality quiz so we can match you well. 3. **Join on Zoom** – Your host will guide you through every round. 4. **Get matches** – Mutual matches sent after the event. --- ✨ Your next match is one Zoom call away. 🫶 ✨