Cryptography
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Frequently Asked Questions
Yes! Check out cryptography events happening today here. These are in-person gatherings where you can meet fellow enthusiasts and participate in activities right now.
Discover all the cryptography events taking place this week here. Plan ahead and join exciting meetups throughout the week.
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Cryptography Events Today
Join in-person Cryptography events happening right now
Coffee & Bitcoin: Old Town Alexandria
Coffee & Bitcoin is coming to ***Old Town Alexandria @ King St Metro***
**[Bitcoin District](https://bitcoindistrict.org/)** 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.
We highly encourage anyone who is new to Bitcoin or just a little curious to come and ask questions... don't be shy!
🚗 Nearby street & public garage parking
🚆 From DC, Take the YELLOW line to King St-Old Town Metro
**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.**
Yoga Therapy: My Body Don't Bend That Way - Therapeutic Yoga
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.
A Poetry Workshop
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
Yoga Therapy: My Body Don't Bend That Way- Therapeutic Yoga
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.
Vinyasa - Therapeutic
This class focuses on incremental movement accompanying rhythmic breathing while offering hands-on assistance to the student.
**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.**
Cuban Salsa/Rueda de Casino Class & Social Dancing
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
Cryptography Events This Week
Discover what is happening in the next few days
Bluegrass Repertoire Class with Justin Heath
This is a great class for beginner to intermediate players looking to get into bluegrass. Students will learn the basic chords and melody of one or 2 classic Bluegrass songs and how to approach playing them in a jam setting. Over the course of about an hour the class will play the tunes several times as a group exploring different possibilities for kickoffs, solos, endings and more. At the end of the class we open up the jam!
Justin plays guitar and banjo with Cherry Blossom Special and runs jam sessions along and runs jam sessions along with mandolinist Nick Cameron and fiddler Mari Carlson. He has been teaching guitar, banjo and mandolin in Takoma Park since 2012. This class was designed to give people an affordable entry point to Bluegrass music, and help grow the community. The class is $30 Register [Here!](https://checkout.square.site/buy/GUSSUYYW5UMKDMCDV4CQBOBL)
Bachata Fusion With Abraham (Level 2)
[Book Your Classes by Clicking This Link! ](https://crowndancestudio.com/group-classes/)
Take a deep dive into the world of Latin rhythm with our **Level 2 Bachata workshop from 1:30 PM to 3:00 PM**. This 90-minute intensive is crafted for dancers who have moved past the basics and are ready to refine their body mechanics, intricate footwork, and partner connection. **For $25,** you’ll receive focused, high-value instruction that bridges the gap between foundational steps and social dance mastery, ensuring you leave the studio feeling confident and inspired
Delicious Chinese Dinner on Sunday at Chang Chang in Dupont Circle
Hey Chapter Twoers, come join us this Sunday during Memorial Day weekend for Sichuanese and regional Chinese Cuisine by Peter *Chang* with modern cocktails and dessert. If you haven't been there, it's one of the best Chinese restaurants in DC.
Walking Group
Enjoy a relaxed walk aroundthe beautiful **Green Springs Garden**! Take in the fresh air, vibrant blooms, and peaceful surroundings while connecting with others.
A perfect way to unwind and enjoy the outdoors.
Modern West African Cuisine at Elmina (U Street Corridor)
**NEW MEMBERS or 1st TIME EVENT GO-ERS**
Before attending your first event, please take a moment to understand how our dinners work and what we ask of members.
→ **[Learn how DC Metro Dining works](https://tinyurl.com/Landing-Page-DC-Metro-Dining)**
→ **[Ensure Group Notifications are Setup (Announcements + In on Waitlist/Attending List)](https://app.tango.us/app/workflow/Enable-Meetup-Email-Notifications-3a85109614fc4907940503d096331392)**
**RSVP CUTOFF (i.e. Final Change Your Mind if Registered YES)**
→ **RSVP Cancellation Cutoff for this Event is Sunday 10a, 5/24**. (*Late Cancel applies after this, repeat occurrences can impact membership*)
Let’s explore an upscale dining experience that blends West African tradition with modern culinary innovation. We are heading to **Elmina** in Shaw, from Top Chef finalist and Food Network personality Eric Adjepong, known for bringing modern Ghanaian cuisine into a refined dining setting.
**FOOD**: Elmina blends traditional West African flavors with modern technique, with a menu that highlights depth, spice, and layered composition. Dishes frequently called out include the jollof duck pot and egusi stew dumplings, both reworking classic Ghanaian staples into more refined presentations. You will also find grilled meats with suya-style seasoning, seafood dishes with balanced heat and acidity, and rotating plates that reflect regional influences.
The menu leans bold and savory, with options across meat, seafood, and some vegetarian-friendly selections. Cocktails often incorporate tropical and spice-forward elements that align closely with the cuisine.
Most members should expect total spend to land roughly in the 55 to 85 dollar range, depending on beverage participation.
→ **Explore Elmina's menu:**
**[https://www.elminarestaurant.com/menu](https://www.elminarestaurant.com/menu)**
**SPACE**: Stylish, modern dining room with a warm, intimate layout. Expect a lively but controlled atmosphere with moderate noise levels, especially on a Sunday evening.
→ **Visit the restaurant site (scroll half way down to la carte menu)**: **[https://www.elminarestaurant.com/](https://www.elminarestaurant.com/)**
* Tax/Tip combo is our required 30% tax/tip policy (see the FAQs for more details).
* Limited to 8 slots.
See you there!
JoeN
**CLOSEST METRO**:
\***U Street–African-Amer Civil War Memorial–Cardozo station** (Green, Yellow) is the closest stop. Walk east along Florida Ave NW. The walk is about 12–15 minutes
\*For directions using the Metro, try using the Plan a Trip feature at the WMATA website ([click on your preferred Metro station](https://www.wmata.com/rider-guide/stations/index.cfm) then at the Station page level click "Plan a Trip".
**PARKING**: Street parking in this area can be difficult on weekend evenings. Several paid garages are located within a few blocks along 14th Street and nearby side streets. Plan accordingly.
***Attendance Notes:***
-\* **If you RSVP “YES,” please commit to showing up**. *With 5,400+ members and limited seating, we can’t afford no-shows. It’s not fair to other members or to our relationship with the restaurant.*\*
-\*\* New Members / 1st Timers: **Trying to get a slot? Join the Waitlist and check back frequently: spots (*often open up before Noon on the day of the event. You may also receive midweek confirmation emails to reconfirm your RSVP, so please check your Meetup DMs inbox).***
-\* Billing Reminder - Add 30% for tax and tip to your food and drink total.\*\*\* This is part of our group’s expectations and helps smooth out service with the restaurant.
Looking forward to dining with you!
JoeN
Cryptography Events Near You
Connect with your local Cryptography community
Drunken Philosophy: What’s up with all the AI hate?
**Welcome to Drunken Philosophy** a casual, curious social discussion
**Optional topic for this meetup: What's up with all the AI hate?**
A recent survey found that 74% of Americans have a negative view of AI, and I want to know why. Come out and debate whether AI is good or bad.
My hot take: a labor-saving tool that could potentially help cure cancer gets called dangerous because it might raise unemployment or cause a speculative investment bubble, that tells you a lot more about capitalism and the economic system we live under than it does about the tool itself. As a computer programmer, I think AI is a wonderful tool that has increased my productivity by at least an order of magnitude. I'd go so far as to say Claude Code is the best tool I have ever used. Debate me and name a better one.
Is AI potentially dangerous? Yes, but so are a lot of tools. Chainsaws. Steam engines (early ones would occasionally explode and kill everyone in the room). Do you think cavemen sat around debating whether fire could be used as a weapon or for self-harm, and decided not to discover it?
I have two friends who hate AI for opposite reasons: one thinks it's a fad and not useful, and the other thinks it's going to take over everything and cause human extinction.
Come out tonight, have a friendly debate, and make some friends.
No lectures. Friendly crowd. Drop in for one drink and stay if it's fun.
NSCoder Night
Bring your work or your hobby, hang out, and code with us.
Follow @buckeyecocoa for more information.
Ensuring Software Quality in the world of AI Developers - Matt Eland
**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**
Like it or not, AI agents are now capable of turning a quickly written paragraph of requirements into a pull request that is ready to be integrated into real-world production applications and it's now our responsibility to make sure AI doesn't go rogue and take down prod - or corrupt our data by misunderstanding the requirements or our existing schemas. In this session we'll explore strategies to protect our codebases through unit and integration testing, documentation, and code review along with additional ways of providing context and guard rails to our AI agents as they carry out the work we've assigned them to do. By the time we're done, you'll have a firm grasp of the problem and understand some helpful options for protecting your codebase from vibe coding mishaps getting YOLOed into prod.
**YouTube Link**
TBD
Cocoaheads
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/
Psychic Development Series II - Pueo Group
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
Surrey Online Speed Dating
**💝 Surrey Zoom Online Speed Dating**
Online speed dating for Surrey locals — personality matched, hosted live on Zoom.
**Choose your age range to sign up:**
- **Ages 18-32** → [REGISTER HERE](https://tempodating.com/product?productId=537.0&productType=onlineSpeedDating&city=Surrey&groupurlname=build-real-connections-at-day-trips&ar=18-32&face_v=9.0)
- **Ages 30-46** → [REGISTER HERE](https://tempodating.com/product?productId=537.0&productType=onlineSpeedDating&city=Surrey&groupurlname=build-real-connections-at-day-trips&ar=30-46&face_v=9.0)
- **Ages 40-58** → [REGISTER HERE](https://tempodating.com/product?productId=537.0&productType=onlineSpeedDating&city=Surrey&groupurlname=build-real-connections-at-day-trips&ar=40-58&face_v=9.0)
- **Ages 55+** → [REGISTER HERE](https://tempodating.com/product?productId=537.0&productType=onlineSpeedDating&city=Surrey&groupurlname=build-real-connections-at-day-trips&ar=55+&face_v=9.0)
**⚠️ RSVP alone won't secure your spot.** Register through your age group link below and complete the personality quiz. Places are limited.
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**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. 🫶 ✨
Brunch Social at 17 Arrows Kitchen & Bar
Join us for a relaxed and enjoyable brunch at 17 Arrows Kitchen and Bar!
This is a great opportunity to meet new people, enjoy good food, and ease into the weekend with great conversation. Whether you’re new to the group or it’s your first event, you’ll feel right at home.




























