Cryptography
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Frequently Asked Questions
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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
Morning Movement & Grace
[Book Your Classes by Clicking This Link! ](https://crowndancestudio.com/group-classes/)
Kick off your week from **11:00 AM to 12:00 PM wit**h focusing on the smooth, elegant foundations of Ballroom dance. This session is perfect for seniors and families looking to improve posture and balance through the Waltz, Foxtrot, and Tango in a low-pressure, welcoming environment.
Price: $25 Drop-in, Membership **DOES NOT** include this class!
Yoga Therapy: Wake-Up Yoga
This class is designed to target those places in the body that might need a little extra space breathed into them after a night's sleep. This morning, get your blood pumping and work out all the stiffness, cramping, and tightness that are often left in the body after hours of laying still. Now seize the day!
**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.
Doubles Volleyball - A level @Bluemont Park
Doubles Volleyball - A level @Bluemont Park
Let's get together to play some fun A level Doubles games at Bluemont.
Format: Doubles
COST: FREE
Court Type: Outdoor grass
Minimum Skill Requirements: A level (click [here](https://docs.google.com/document/u/2/d/1PojSi4qdlRsv1msCHhvpQ43iDc4FfzQwpWCc3kafVMY/mobilebasic) for details)
Attention:
1. This event is not always on a first come, first served basis. Those who can bring a net and ball, may get priority over others on the waitlist.
1. Since skill levels are self-reported, some attendees may not meet the expected level in reality, so we encourage you to choose a partner you can enjoy the game with, and since this is a competitive event, it is okay if you make a strong team and win all the games.
1. Since people arrive at different times, each group of
4. Players will set up and claim a net as they arrive, and may continue playing without rotating until all nets are set.
———
Smiley Social documents:
[Group Rules](https://docs.google.com/document/u/2/d/1HrG35p_0M08leRvCp8XWG3CMkr_GL928XFabl5T6Dvg/mobilebasic)
[Liability Waiver](https://docs.google.com/document/u/2/d/1W2mq-7m99lmvd7gdWYaSUFtvVg4UGnzV6koafAbHmco/mobilebasic)
[Volleyball Levels](https://docs.google.com/document/u/2/d/1PojSi4qdlRsv1msCHhvpQ43iDc4FfzQwpWCc3kafVMY/mobilebasic)
Yoga Therapy: Stretch, Destress & Restore
Hit the pause button for an hour and reduce your stress. You will be compassionately guided through an exploration of intentionally linking your breath with the movement of both dynamic and static stretching and its impact on your (P)hysical, (I)ntellectual, (E)motional, and (S)piritual layers. Then experience the calming practice of restorative yoga which was designed specifically to move you from the fight, flight, or freeze state of the nervous system into the rest and digest state. Leave this all levels, accessible class feeling restored, renewed, and ready for what life has in store for you next.
**Please reserve your spot at www.piesfitnessyoga.com.** The session is offered InStudio only. **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.
Volleyball - B/BB - Bluemont Park
If you’ve already learned the basics of volleyball and want to keep improving your skills while having fun, this event is for you!
**How to find us:** Park in the South Bluemont Parking Area and walk toward the south end of the lot. Near the end, you’ll see a bridge on your left—cross it. We’ll be on the field to the left of the picnic pavilion.
**Skill Level:** Advanced Beginner (click [here](https://docs.google.com/document/d/1PojSi4qdlRsv1msCHhvpQ43iDc4FfzQwpWCc3kafVMY/mobilebasic) for details).
**Reminders**
1. Attendance: We’ve noticed that the waitlist is growing, so please make sure your name is on the Going list if you plan to play. Our number of nets is limited so this helps avoid too many rotations. If your name is on the list but you don’t show up, it will count as an absence according to Smiley Social rules. Please update your RSVP at least 12 hours in advance if your plans change.
2. Injuries: Play safely and be mindful of others on the court. Respect positions and avoid risky moves that could lead to injury. If you’re not sure the ball is yours, call it before going for it to avoid collisions.
3. Game Rules: Let’s follow the basic volleyball rules, especially the three-touch rule so we can play properly and improve as a team!
**Smiley Social documents:**
1. [Group Rules ](https://docs.google.com/document/d/1HrG35p_0M08leRvCp8XWG3CMkr_GL928XFabl5T6Dvg)
2. [Liability Waiver ](https://docs.google.com/document/d/1W2mq-7m99lmvd7gdWYaSUFtvVg4UGnzV6koafAbHmco)
3. [Volleyball Levels](https://docs.google.com/document/d/1PojSi4qdlRsv1msCHhvpQ43iDc4FfzQwpWCc3kafVMY/)
Monday Courthouse Run/Walk - 40 Min
On Monday, we'll meet in front of 2100 Clarendon Blvd around 6:50pm and head out for a nice hilly run on the Custis Trail at 7pm.
We usually head out for a drink after the run. So if you're planning to stay after for drinks, bring your ID/etc.
Notes:
If you're not familiar with the area, please review the routes. If it's cold, take cover inside the foyer area of 2100 Clarendon Blvd.
Photos taken during the event may end up on Instagram, Meetup, Strava and similar platform.
Routes:
We'll alternate between the following routes. Both are hilly. We run 20 minutes out and then turn around and run 20 minutes back to Courthouse. Everyone runs at his/her own pace, so the distance will depend on your speed.
1. Courthouse to Georgetown Waterfront (one big hill) ([https://www.mapmyrun.com/routes/view/6264227038/](https://www.mapmyrun.com/routes/view/6264227038/))
Veitch St. to the Custis Trail; downhill to Key Bridge; over to the Georgetown Waterfront
2. Courthouse to Custis Trail West (rolling hills) ([https://www.mapmyrun.com/routes/view/6600124130](https://www.mapmyrun.com/routes/view/6600124130))
Veitch St. to the Custis Trail; West toward Glebe Rd.
Pace:
All paces are welcome! We'll be doing an out and back route, so everyone will just turn around at the halfway time marker. That way we should all start and end at the same time.
Free Parking at Courthouse Plaza:
The underground garage is on Clarendon Blvd btwn Wayne and Veitch Sts. (near Strayer/CVS and the AMC Theater). If the first 2 levels on the left are full, you can park on the lower levels to the right. Street and Surface Parking lots should be free in the area as well.
Metro:
Orange or Silver line to Courthouse Station.
Cryptography Events This Week
Discover what is happening in the next few days
TOOOL DC Lock Picking Monthly Meeting
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/
Photo Class: Exploring Street Photography
THIS CLASS IS OFFERED THROUGH CAPITAL PHOTOGRAPHY CENTER
**PLEASE REGISTER WITH CAPITAL PHOTOGRAPHY CENTER, NOT MEETUP!**
https://capitalphotographycenter.com/classes/class/2026-05-09-exploring-street-photography
Street photography is very popular now more than ever because photographers have access to high quality cameras in mobile phones and smaller high resolution digital cameras. A camera’s ease of access and proliferation raises the issues of ethics and privacy in public places and the difference between a snapshot and a street photograph.
This hands-on class will explore the unique aspects of the street photography genre. Michael Koren will be your guide as you create compelling photographs that go beyond the ordinary snapshot.
First, you’ll learn pro level tips and techniques and discuss privacy issues associated with street photography. Then, with Michael’s guidance and direction, the group will head out to photograph near the White House in Lafayette Square.
You’ll create photographs that demonstrate your personal vision while using your own gear optimized for street photography. We'll then head back to the classroom for image reviews and feedback.
Topics include:
-Proper techniques and settings for street photography
-Pro tips and techniques for capturing compelling images
-Create captivating images using anticipation, patience, composition and
visualization
-Hands-on image capture
-Privacy and ethics concerning street photography
-Image review and feedback
Recommended gear:
-Although any camera will do, for best results we recommend a DSLR or
mirrorless camera with manual exposure controls
-Lenses in the range of 28mm - 70mm (zoom or prime)
-Fully charged camera battery with an optional spare
-Camera instruction manual (paper or electronic)
-No tripod, no flash
Class size is very limited
***
• Important to know
**THIS CLASS IS OFFERED THROUGH CAPITAL PHOTOGRAPHY CENTER**
https://capitalphotographycenter.com/classes/class/2026-05-09-exploring-street-photography
Coffee & Bitcoin - McLean
**[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!
🚗 Free parking behind the coffee shop.
🚆 METRO: Greensboro + 10 minute walk (Silver line)
**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 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.
Central Bank Digital Currencies, CBDC Meetup Group
Monthly meeting: Second Saturday of the month
International House of Pancakes (IHOP)
775 Rockville Pike, Rockville, MD 20852
7:00 PM – 10 PM. Late arrivals always welcome.
Look for the table with someone wearing a red hat.
Questions, please call 1-240-644-5230
Agenda:
What are more things we can do to wake people up?
What can we do to get more people involved?
Other things people would like to talk about.
This will be a joint meeting with:
DC 9/11 Truth
[https://dc911truth.org/](https://dc911truth.org/)
dc911truth Facebook page
[https://www.facebook.com/groups/dc911truth/](https://www.facebook.com/groups/dc911truth/)
911 Meetup Group
[https://www.meetup.com/meetup-group-kyegaoqu/](https://www.meetup.com/meetup-group-kyegaoqu/)
Central Bank Digital Currencies CBDC Meetup Group
[https://www.meetup.com/central-bank-digital-currencies-cbdc/](https://www.meetup.com/central-bank-digital-currencies-cbdc/)
Freedom of Speech Meetup Group
[https://www.meetup.com/silver-spring-freedom-of-speech-meetup-group/](https://www.meetup.com/silver-spring-freedom-of-speech-meetup-group/)
One way to make it more difficult for them them to impose a digital currency on us is to use cash.
Central Bank Digital Currency (CBDC)
With Digital Currency they can:
Have a complete government dossier on every detail of your life.
Use your purchase history to maintain a detailed social credit score for every person.
Provide tax breaks to corporations who hire people with admirable social credit scores.
Only grant government contracts to corporations with employees with admirable social credit scores.
Adjust health insurance premiums to incentivize people to develop admirable social credit scores.
Connect your social credit score with a digital ID to encourage you to look at only approved web sites when surfing the internet. Viewing conspiracy web sites could lower your Social Credit Score and make it difficult to get a job.
With their electronic chain around your neck, they can control where, when, how you travel, what food you are allowed to buy etc. They will love the power to only allow you to use your digital money only where they want you to shop and allow you to buy only what they prefer you to buy.
Require you to have to have a license to use your money. They will call it a Digital Currency License.
Require you to take any vaccine they want you to take to maintain your digital currency license.
Tax you in ways we have not even imagined.
Adjust your income tax rate based on your social credit score.
Use AI to increase your income tax rate if you eat too many hamburgers because they will tell you eating too many hamburgers will increase global warming. This is just one example of many behaviors they might not approve of.
Adjust individual prices for different individuals. They will be able to make you pay more per pound for hamburger if you purchased too much red meat during the past 30 days.
Require you to buy so many pounds of soy burger for every pound of hamburger to save the planet and increase the profits for the soy burger manufacturers.
Turn off the digital money of people they consider to be spreading misinformation.
Turn off the digital money of people they consider to be dangerous conspiracy theorists.
Turn off your money at 8 PM if they want a curfew at 8 PM
Turn off your money in another state if they do not want you to drive to another state without permission.
Turn off your money when buying guns or ammo if they do not want you to buy guns or ammo.
Turn off your digital money more than three miles away from your home if they want you to stay within three miles of your home during the next epidemic.
Etc. etc. etc.
From the standpoint of the government, one beauty of digital money is that your money is one “state emergency” away from being the government’s money. All they have to do is to take your digital money out of your Central Bank Digital Account for the “good of all”. It is not as easy for them to do this with physical cash, gold, stocks, or silver etc.
Anything they **can** do, they will do.
The essence of slavery is control. Digital Currency will enable them to make you, their slave.
(in a global digital concentration camp).
.
A MAFN / NOVA Scribes Facilitation Open House!
What does it look like when ideas come to life?
Join NOVA Scribes and MAFN for a full-day, in-person open house where the public is invited to step inside the world of facilitation. This is a come-and-go experience designed for curiosity, exploration, and conversation. Whether you are new to facilitation groups, you are welcome.
The space will be set up as a "theater in the round," (see the image) with facilitators working live around the room. Throughout the day, you will see different techniques, styles, and modalities demonstrated in real time, from visual templates, facilitation tools, and decision-support methods. You can observe, ask questions, and engage directly with the practitioners as the work unfolds.
**What you can expect**
* Live demonstrations of facilitation techniques
* Multiple practitioners working simultaneously, each with their own approach and style
* Short, informal demos and tiny teaches that explain how and why specific techniques are used
* Opportunities to talk one-on-one with experienced facilitators
* A chance to see how facilitation can support sensemaking, alignment, and group dialogue
**What you might explore**
* Methods and templates for planning, strategy, and reflection
* Facilitation methods that support participation and decision making
* Tools, materials, and setup considerations for live work
This open house is designed to be accessible, hands-on, and inspiring. You do not need to stay all day. Come for 20 minutes or stay for hours. Watch ideas take shape. Notice how facilitation can change the energy in the room. Ask the questions you have always wanted to ask.
If you have ever been curious about how facilitation works and supports groups, this is your chance to experience it up close.
**Open to the general public. No prior experience required.**
We’re not charging for this workshop, but we will be asking for donations!
David Attenborough Birthday Hike
David Attenborough turns 100 years old on May 8th! Celebrate his legacy with a birthday hike in Arlington. Meet at Arlington Mill Community Center in the plaza. We will hike along the creek and Four Mile Run.
Cryptography Events Near You
Connect with your local Cryptography community
Mindful Photography Walk – A Gentle Pause in Nature
Join me for a small, mindful photography walk in nature. (**NOTE Time is 9:00 AM EST(Meetup is having technical Issue))**
This is a slow, intentional gathering — not focused on fitness or perfect photography — but on simply pausing, observing, and being present.
We’ll walk at a gentle pace, with moments of quiet, and a few light prompts to help you notice details you might normally miss.
📷 You don’t need any photography experience — a phone camera is enough.
This is also not a business networking event. It’s a calm space to connect with nature and, if it feels natural, with like-minded people.
🌿 What to expect:
• A slow-paced, relaxed walk
• Moments of silence and observation
• Simple reflection prompts
📍 Location: [ Red Trabue Nature Preserve]
⏱ Duration: \~60 minutes
This is a small, initial gathering as I begin creating this space through WellGratiVibes — a blend of mindfulness, nature, and quiet connection.
If this resonates with you, you’re welcome to join.
Duty vs. Results: What Makes an Action Moral?
When judging morality, should we prioritize **intentions/duty** or **outcomes/results**? It introduces two influential philosophers as representatives of these approaches.
* **Immanuel Kant (deontology):** An action is moral when it is done from **duty** and follows rational, universal principles (the **categorical imperative**). Certain acts—like lying—are wrong regardless of the consequences; you can’t do a wrong thing for a right reason.
* **John Stuart Mill (utilitarian consequentialism):** The morality of an action is determined by its **effects**, specifically how much **happiness/well-being** it produces. Mill argues that some pleasures are “higher” than others, and that good intentions don’t redeem harmful outcomes.
## Discussion Questions
1. **The lying dilemma:** A murderer comes to your door and asks if your friend is hiding inside. Kant would say you must not lie.
2. **Can good intentions rescue a bad outcome?**
3. **The organ harvest problem:** A surgeon has five patients dying of organ failure and one healthy patient in for a checkup. Killing the one to harvest organs would save five lives, and the math works out for the utilitarian. Why does this feel so deeply wrong? Is that feeling a point in Kant's favor, or just a bias we should overcome?
4. **Do rules need exceptions?** Kant insists moral rules must be universal, with no exceptions. But most of us can imagine extreme scenarios where any rule seems like it should bend. Does the need for exceptions fatally undermine deontology, or is the strength of the system precisely that it refuses to bend?
5. **Who gets to calculate the consequences?** Utilitarianism asks us to maximize good outcomes, but we're notoriously bad at predicting consequences. If we can't reliably know the results of our actions, is it practical to base our entire moral system on outcomes? Does this uncertainty push us back toward rules and principles?
6. **Everyday morality:** Think about a real moral decision you've made recently, even a small one. Did you reason more like a Kantian (what's the right thing to do in principle?) or more like a utilitarian (what will produce the best result?)? Do most people naturally lean one way?
7. **Justice vs. the greater good:** A town can prevent a deadly plague by sacrificing one innocent person. The greater good is clearly served. But is it just? Can an action be morally right and deeply unjust at the same time?
8. **The big synthesis question:** Are these two systems actually opposed, or do they often arrive at the same answers by different paths? Is it possible that we need both: rules to guide us in the moment and consequences to evaluate systems and policies over time?
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/
BeComing Circle Initiates
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
Building Scalable Customer Identity Resolution Pipelines on AWS Using AI
Customer identity resolution becomes increasingly complex as organizations scale across multiple systems, regions, and data formats. Traditional rule-based approaches often fail to keep up with data variability, require constant manual tuning, and struggle with real-time processing needs.
This session presents a practical approach to building a scalable identity resolution pipeline using AWS services and modern AI techniques. The architecture combines data ingestion through Amazon S3 and AWS Glue, transformation pipelines using Spark on EMR, and machine learning models deployed via SageMaker for entity matching and standardization. Graph-based relationship modeling is implemented using Amazon Neptune to improve resolution accuracy by incorporating household and shared attribute context.
We will walk through how machine learning models can be used for name and address normalization, how intelligent blocking strategies improve matching efficiency, and how feedback loops can be introduced to continuously improve accuracy. The session also highlights how serverless components such as AWS Lambda can be used for orchestration and real-time processing.
**SPEAKER BIO**
Mosaic Syed is a Senior Data Engineering and Cloud Solutions Architect with over 20 years of experience designing and delivering scalable, secure, and high-performance data solutions across global enterprise environments.
https://www.linkedin.com/in/mosaic-basha-syed-92300856
**CALL FOR SPEAKERS**
Learn more: [https://www.awscolumbus.com/get-involved/](https://www.awscolumbus.com/get-involved/)
**THANK YOU** *VEEAM* for hosting our meetup! To learn more about *Veeam*, please visit their website: [https://www.veeam.com/](https://www.veeam.com/)
**DIRECTIONS**
8800 Lyra Dr #450 · Columbus, OH
go to 4th floor.
**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
COhPy Monthly Meeting
**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 John Lairson will share a notebook describing the Alpaca (Paper) Trading API and discuss different algorithms for evaluating stock trades.
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
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






























