Cryptography

Come kick back with the Black Code Collective! We'll be on the second floor by the main entrance in the mall!

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. Located in north Bethesda’s Pike District, Nando’s Pike & Rose restaurant is helping the people of Montgomery County find their spicy place, one piece of flame-grilled PERi-PERi chicken at a time. Always fresh, never frozen, their chicken is marinated in PERi-PERi for 24-hours, and flame-grilled to order in the heat level of your choice. And a little secret you may not know…they partner with small-scale farmers in Southern Africa to source authentic PERi-PERi chilis. Nando's originated in a small town in South Africa in 1987 and has grown to include locations all across the globe, including this location in Pike & Rose, one of the region’s trendiest places to shop, dine, work, and live. Easily accessible by car, bike, or Metro, Nando’s Pike & Rose restaurant is an ideal spot for a GRASP meetup event! You won't want to miss the delicious PERi-PERi dishes in this creative and contemporary space.

​What if the American small farm could double as a high-tech power plant and farmers could become their own bank? Join us at PubKey DC for an exploration of a new frontier in rural land use. We’re sitting down with Mark Smith, CEO of [Carbon Country](https://www.carboncountry.us/), and Hunter Budd from the Digital Energy Council to break down a scalable model for the modern grower. 👉 [RSVP on LUMA](https://luma.com/fdvf8zd4) You’ll get an inside look at how integrating agrivoltaics (solar + grazing) with on-site Bitcoin mining creates a financial "flywheel" for regenerative agriculture. By monetizing excess energy and sequestering carbon through biochar, this model offers small farms a path toward energy independence and diversified revenue. Come find out how the intersection of Bitcoin and land stewardship is building a more resilient, decentralized grid—one pasture at a time. Read more about [Carbon Country on their website](https://www.carboncountry.us/). 👉 [RSVP on LUMA](https://luma.com/fdvf8zd4) ​**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 [https://bitcoindistrictinitiative.org](https://bitcoindistrictinitiative.org/).

Join us for a deep dive into Christian doctrine through the lens of the Bible. This evening sessions will provide a unique opportunity to explore key theological concepts, discuss spiritual growth strategies, and enhance your understanding of the teachings of Jesus Christ. Whether you are new to Christianity or a seasoned believer, this event is designed to enrich your faith journey and strengthen your relationship with God. This meetup is open to all members of the DMV Bible Study Meetup Group, regardless of age or background. Come prepared to engage in meaningful discussions, ask questions, and connect with fellow Christians in a supportive and welcoming community. Let's grow in faith together as we delve into the timeless wisdom found in the scriptures.

🌙✨ NetSAP (Network of South Asian Professionals) and YBP (Young Bengali Professionals) Community Iftar at Ballston Quarter Market ✨🌙 Join us for dinner or breaking fast together! 🗓Wednesday, February 25 ⏰ 5:30 PM 📍 Ballston Quarter Market (Halal options available!) Please bring your own: 🧎‍♀️ Prayer mat 🌴 Dates 💧 Water Let’s gather, share food, and build community. Everyone is welcome — friends, family, neighbors, all faiths 🤍 See you there! 🌙✨

## Details Hello everyone! We climb at Crystal City Movement every Wednesday. Please read rest of the description carefully. We mostly do tope rope climbing but we can arrange bouldering sessions as well. If you prefer lead climbing please post on the comments to find your belay partner. \#\# Requirements * If you are not a Movement member, you'll get a daily pass. If you don't have the equipments you can rent them in the gym. * Please sign the waiver through: [https://movementgyms.com/waiver/](https://movementgyms.com/waiver/) All skill levels are welcome! If you are totally new to climbing and want to do top rope, then you have to have a belay certificate. In order to do that; * You can check Movement gym Intro to Rope Climbing class : [https://movementgyms.com/crystal-city/climbing/classes/](https://movementgyms.com/crystal-city/climbing/classes/) * After the course, you should do the 'Belay Check' which can be done as soon as 24 hours after you take the class. The test takes around 15 mins so it can be done before the climbing session. Before your first visit you may want to check the related webpage: [https://movementgyms.com/first-visit/](https://movementgyms.com/first-visit/) \#\# Where to meet To find us go down the stairs in front of the front desk. We will meet around the benches next to climbing walls.

Join DC Metro Crafts for an additional meetup this month, this time in NW at the MLK LIbrary in Chinatown. We'll be in room 401-A. Bring your own cross stitch, knitting, crochet, or other portable craft.

[More Than a Flower | National Museum of African American History and Culture](https://nmaahc.si.edu/explore/exhibitions/more-flower) [https://nmaahc.si.edu/explore/exhibitions/more-flower](https://nmaahc.si.edu/explore/exhibitions/more-flower) **More Than a Flower Exhibit \| National Museum of African American History and Culture** ***More than a Flower* shares the fresh and fragrant beauty of live orchids and connects stories, scholarship, and art to this extraordinary species.** **I have 4 tickets, and Sri has 9 tickets for 1:30 PM on Saturday, February 28th.** ***SO, there are 13 tickets, and I limited the number of attendees to 13.*** ***Feel free to go at another time that works for you. The exhibit will be there until April 26.*** Bring: Water, fully charged batteries, empty cards, and comfortable shoes Share only your very best, most interesting shots after the field trip, and keep it down to between 5 and 10 photos. 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.

Bitcoin District is a community of Bitcoiners living & working in the greater DMV metro area. Join us for a "Coffee & Bitcoin" meetup where we'll talk about what's happening in the world of Bitcoin. 👉 [RSVP on LUMA](https://luma.com/g4a1tknf) This is an easygoing, open-door gathering where anyone curious about Bitcoin can ask questions and meet the local community. No presentations, no pressure — just good coffee, good conversation, and a space to talk about what’s happening in the Bitcoin world. New to Bitcoin, actively building, or simply interested in connecting with the local community? Stop by, say hello, and spend a Saturday morning with us. Checkout the cafe's menu: [https://www.opencitycathedraldc.com/](https://www.opencitycathedraldc.com/) **Getting There:** ​🚗 Free Parking (on Saturdays) by the Cafe 🚇 30-min walk from Woodley Park-Zoo/Adams Organ **⚠️ Our events are Bitcoin focused and we generally avoid discussing other coins & tokens. Nothing discussed during this meetup is financial advice. Always do your own research.** 👉 [RSVP on LUMA](https://luma.com/g4a1tknf)

**The rules are simple:** Take photographs **Each and Every Day** and post your best **ONE** (1) shot of the day - **EACH DAY** for **March**. If you happen to miss a day or two (life happens), it is **OK** to catch up and upload the photos for the days missed or just skip those days. **Please don't post over 2 to 3 at a time**. This is part of the learning process. **DO NOT POST TO THE ALBUM *UNTIL* AFTER 03/01/2026**. Please use a browser like Chrome and the Meetup.com website to post the images, as **the Meetup app does not handle albums very well**. Towards the top-left of the page is a link to **Add Photos** for uploading your photo to the album. **CONFIRM** **that your photo was Added to the correct Album.** Remember to post your **best photo (JUST ONE)** you took every day on that day! **DO NOT POST PHOTOS FROM ANY OTHER TIME!** If you have time to post an older image, you can take a new image and post it. Be creative. Please **add a caption** to know how far you are in the process. After you upload the image you took that day, find your photo at the end of the album, and edit the caption to state the day and total of days in the month like this:?/31. You can add the title of the image if you wish. A good title can make a photo! So, your photo for the **March 1st** caption would be "**1/31: My great photo!**" \*\* Adding a caption helps you keep track of where you are in the month. It does help. The purpose is to have fun and get in the habit of shooting every day. Learn to use your camera. Read your manual and test out a new feature you have never used before. Sometimes picking a theme/project can help focus (pun intended), like flowers, your pet(s), a lens you haven't used in a while, or whatever your passion is. Or try something new... The **end date is 03/31/2026**. Meetup.com does not allow events to be longer than 2 weeks. Other images that were not taken by you will be removed. Please keep the images family-friendly. You need to be a member of the Virginia Beltway Photography Group. I look forward to seeing how far people go and grow as better photographers!

Title : Design of a Quantum Photonic Full Adder Gate based on an 8-mode Integrated Optical Circuit Date: Feb 28 2026 Noon - 14:00 EST Abstract: Multiport interferometers designed using the Clements decomposition algorithm can be used to implement compact quantum-photonic full-adder (FA) gates on photonic integrated circuits (PICs). By expressing each element of the FA gate matrix in terms of the permanent of a non-unitary matrix, enabled through Boson sampling, the required number of MZIs in the gate can be further reduced. In this presentation, we will discuss the design of an FA gate modeled as a four-photon scattering process on an eight-mode integrated optical circuit, where the permanents of submatrices determine the output probabilities. Simulation results demonstrate a fidelity of 1 and a success probability of 2.22 × 10⁻⁴ for the FA gate. We will also examine the impact of phase-shifter and attenuator variations on fidelity and success probability using Ansys Q-Interconnect software. Finally, we will compare the performance of the proposed FA gate with a benchmark Toffoli gate designed using the same approach. Speaker: Shafiqul Hai received the B.Sc. degree in Electrical and Electronic Engineering from the Bangladesh University of Engineering and Technology (BUET), Dhaka, Bangladesh, in 2007, and the M.Eng. (Thesis) and Ph.D. degrees in Electrical Engineering from McGill University, Montreal, QC, Canada, in 2011 and 2016, respectively. He is currently an Assistant Professor in the Department of Electrical and Computer Engineering at Lakehead University. His research interests include the modeling and characterization of compact nanophotonic devices and components for next-generation optical fiber and RF communication systems, as well as quantum computing on photonic integrated circuits. He is the author or coauthor of more than 12 peer-reviewed journal papers and 15 conference publications. Moderators: Dr. Pawel Gora, CEO of Quantum AI Foundation ([https://www.qaif.org/](https://www.qaif.org/)) , Dr. Sebastian Zajac , member of QPoland ([https://qworld.net/qpoland/](https://qworld.net/qpoland/)) This is an online event. Zoom registration form will be emailed to registrant and posted on the event forum by Feb 28 2026 11:00 am EST.

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.

In an era focused on scalable efficiency, the pursuit of absolute service consistency is often seen as the ultimate goal. But what is gained and what is lost when service offerings are entirely predictable? Does aiming for uniformity stifle necessary adaptation and human connection? Join us for an intimate discussion exploring the often overlooked trade-offs of **service consistency**. We'll dive into when consistency builds “trust and reliability”, and when it becomes “a barrier to designing flexible, empathetic, and truly customer-centric experiences”. **#ServiceDesign #ServiceConsistency #ServiceManagement** **What’s a Service Design DC salon?** Our salons are an excellent opportunity to connect with fellow designers, engage in meaningful conversations, and gain fresh perspectives on the evolving landscape of our field. Space is limited to ensure an intimate atmosphere and encourage deeper conversations. Whether you have been to a past salon or will be a first timer, we’d be happy to have you join this group discussion of service design practitioners and enthusiasts in the Washington D.C. area! **Evening Agenda** * 6:00 P.M. - Doors Open / Socializing \* * 6:30 P.M. - Salon begins * 8:00 P.M. - Salon Wraps up \*We will provide light refreshments, including food and drinks, during the salon. **Note about RSVPs:** * Due to the limited number of available spots, we kindly request that you update your RSVP if you are unable to attend so others may have the opportunity to join. Thank you for your understanding. *** Many thanks to our host and sponsor, **Technical Assent!** *At Technical Assent, we believe that government can be a platform for service innovation where services can be designed to be more relevant to customers, more reliable, and delivered at a lower cost.* *Our company exists to build high-performing government service organizations — government-to-citizens (G2C), government-to-government (G2G), and shared services. Our approach is unique in that we improve service performance from the bottom-up, starting with customer experience. We use that insight to design and modify the talent, tools, and technology that deliver government services to each customer. Technical Assent is a Service-Disabled Veteran Owned Small Business appraised at CMMI-SVC Level 3.*

Hey Poetry Lovers! This group is on a roll. Here’s the gist: We meet at the **Capital One Café in Chinatown** from **12pm - 2pm** every other week. For enrichment, we start by reading and reflecting on a **“published poem”**, suggested by someone in the group. No advance preparation is necessary. But feel free to check out some of the poems we’ve read [here](https://docs.google.com/spreadsheets/d/e/2PACX-1vSyE_wCLQCPHRrKmN5F9tOIeeRQUZESxjRXGVBoCF2uU8Gm0_d0uECiCBCQXEy6ksxfsBOhtRIOpW3T/pubhtml?gid=0&single=true&widget=true&headers=false%22%3E%3C/iframe%3E). Or submit suggestions for future meetings [here](https://docs.google.com/forms/d/e/1FAIpQLSexGc2Z2Kp6bZW0D3_hfJ7NUUkfNHf7TXX-43FglCeBd9EF2Q/viewform?usp=send_form). Next, we **share our work and offer feedback**. Depending on attendance, everyone gets \~10 minutes to use as they like. (No need to share, though; you’re welcome to come even if you prefer just to listen.) We maintain a **Discord server** to help share our work and communicate outside our bi-weekly meet-ups. If you haven’t used Discord before, take a moment to download it and create an account before arriving. When we meet you on Saturday, we will add you to our server, the “DC Poetry Workshop”, and can help you navigate the app if you have questions. Finally, if you plan on sharing a poem, consider how you will do so. Some options include: * Print 5-10 copies to distribute in person * Take and share screenshots in the Discord chat. * Copy the poem into a google doc, change sharing settings to “anyone with link”, and copy the google doc link into the Discord chat. Most importantly, we’re excited to meet you! Catch you on Saturday, Diego / Ian / Cayden / Nate / Otasha / Lia / An

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/

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. Food and drinks will be provided at the event. Feel free to show up a little bit early to hang out and talk. Our March speakers are Molly Gaines and Zack Parrish, co-organizers of the Secular Education Association: They will share their story of how a small group of Ohio parents grew into a national organization tracking released-time religious instruction and other church–state issues in public schools. The presentation will cover SEA’s early wins and hard lessons, what we’re seeing nationally right now, and how local advocates can play a meaningful role in protecting public education. Attendees will leave with a clearer understanding of the landscape — and practical ways to get involved. 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

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

Want to be a speaker? submit your talk to our Call for Presenters!!! https://sessionize.com/cbus-hug-2026/

TOPIC (Getting Ready for Spring Macro Photography): Insects are hatching, and flowers are blooming soon. Join us for a presentation on Spring Macro photography and get primed for the photographic season ahead. Meeting Schedule: 1. 6:00 - Introduction, Meet New Members 2. 6:10 - Old Business 3. 6:20 - New Business 4. 6:30 - Pre-Shoot Briefing/Education 5. 7:15 - Break 6. 7:30 - Image Critique 7. 8:00 - Adjourn Pre-Shoot Brief/Education: NIK Collection 8 Image Critique: Previous Photoshoot Images (iPhone images and Christmas Cards). If anyone has images they would like critiqued, please provide them at the beginning of the meeting. Providing Images for Critique: For now, I will collect images at the beginning of the meeting on a USB memory stick. My computer has USB-C ports, so a USB-C memory stick or one with dual (USB-C / USB-A) ports will be needed. Images should follow these format rules: JPG - 80% quality or higher 132 dpi resolution 2048 pixels across the long edge Embedded colorspace - sRGB

**Important time note:** Please plan on arriving between 5:30 and 6:00 as the elevators lock after 6 and you'll need to message us and we'll need to come get you. The building address is 4450 Bridge Park The entrance is 6620 Mooney St, Suite 400 You will need to scan your ID at the door to get a visitor badge. **Abstract** *Spec-Driven Development with GitHub Spec-Kit: From Intent to Implementation* Spec-driven development flips the traditional workflow on its head: instead of code being the source of truth, the specification becomes the backbone of design, collaboration, and delivery. In this session, we’ll explore how GitHub Spec-Kit enables teams to treat specifications as first-class artifacts—living documents that drive architecture, implementation, and verification. You’ll learn how Spec-Kit helps teams clearly express intent using structured, version-controlled specs that live alongside code. We’ll walk through a practical workflow that starts with defining system behavior and constraints, then progressively refines those specs into testable, automatable outcomes. Along the way, we’ll show how specs can reduce ambiguity, improve cross-functional collaboration, and make design decisions explicit before a single line of production code is written. This talk will cover: --What spec-driven development is (and what it isn’t) --How GitHub Spec-Kit fits into modern developer workflows --Using specs to align product, engineering, and AI-assisted development --Real-world examples of turning specs into implementations with confidence Whether you’re building greenfield systems, integrating AI into your stack, or trying to reduce costly rework, spec-driven development offers a scalable way to move faster without sacrificing clarity. Attendees will leave with concrete patterns and a clear mental model for adopting GitHub Spec-Kit in their own projects. **YouTube Link** TBA

We will show a variety of methods for building agents that run in Microsoft Foundry. This covers the different types of agents: Prompt, Multi, and Hosted, as well as the development lifecycle using evals and traces.