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
Using New Technology to Improve Trust in Government Webinar April 23
Using New Technology to Improve Trust from the Government Blockchain Association Webinar at Noon April 23.
GBA Webinar for Civil Servants from local to state officials including those in uniform on how to use New Technology to improve trust in government
Thu, Apr 23, 2026, 12:00 PM - 1:00 PM (EDT/NYC time zone)
https://us06web.zoom.us/j/85762266787?pwd=ApBzwTv1QvG9qEnT5R8a5aNf3jae89.1
Join the Government Blockchain Association (GBA) for a webinar, "From Transparency to Trust in Public Governance," tailored for elected, appointed, sworn, or employed government workers.
Discover how blockchain technology can revolutionize your work by boosting:
\- Election integrity
\- Ensuring representative transparency
\- Strengthening fiscal responsibility
\- Most importantly\, making your job easier than ever\.
Why Attend?
Learn practical ways to leverage cutting-edge tools to drive efficiency, solve critical challenges, and build public trust all from the comfort of your desktop or phone.
CIVIL SERVANTS including those in uniform at all levels of government and all branches of service
Free Access: No cost to join the webinar or the GBA!
Actionable Insights: See real-world applications of blockchain for local governance.
Ongoing Education: Gain exclusive access to free, continuous training with GBA membership.
Critical opportunity to be more efficient, accessible, transparent and to make your job simpler!
Presenters include
Jonathan Baha'i
Architecting Sovereign Infrastructure for Government & Enterprise \| Founder: Toto & Woof \| Owner: The Diefenbaker \| SSI & Civic Trust Layers
Senator Michael "Big Mike" Fesi
Louisiana State Senator for District 20
Gerard Dache
GBA Founder & Executive Director
Nimit Sawhney
Entrepreneur, Co-Founder of Voatz, Cybersecurity/AI/ML Engineer
Thu, Apr 23, 2026, 12:00 PM - 1:00 PM (EDT/NYC time zone)
https://us06web.zoom.us/j/85762266787?pwd=ApBzwTv1QvG9qEnT5R8a5aNf3jae89.1
For More Information Contact: Bob Miko, bmiko@pacificdialogue.com 203 278 2803
About GBA
The Government Blockchain Association (GBA) is a nonprofit (501c6) organization committed to advancing blockchain technology standards, facilitating industry education, and ensuring a trusted, secure ecosystem for blockchain solutions. For more information, visit https://gbaglobal.org/.
For more information contact Bob Miko, bmiko@pacificdialogue.com 203 378 2803.
Hypertension Workshop
This educational session explores essential strategies for managing and preventing hypertension. Participants will learn about risk factors, lifestyle modifications, and the impact of nutrition and exercise on blood pressure control. The workshop provides practical tools for maintaining heart health and reducing the likelihood of developing hypertension, empowering attendees to take charge of their well-being. Stay after the session for a free health screening! Ages 18 & up; FREE.
**Kentland Community Center**
**[Register Here](https://mdpgparksweb.myvscloud.com/webtrac/web/search.html?Action=Start&SubAction=&_csrf_token=WT6C165L0Q003M48173F1T4A5V404Z4Y006R4I42411J6V5S5W6J6J6Y4V4Q51015G4F553Z0J5T4K6K4A1K4X5X6P5V6X5M5R6G520E4O6251686K5T555A5B6O6T4O53&keyword=SPD-SPEC-GA-20260423&keywordoption=Match+One&dayoption=All&beginyear=&location=&display=Detail&module=global&multiselectlist_value=&globalwebsearch_buttonsearch=yes)**
For fastest response to any questions, or for more information, please contact Health and Wellness directly via email [wellness@pgparks.com](wellness@pgparks.com)
April Book Swap at the Martin Luther King Jr. Memorial Library!
**๐ Book Swap: Bring Your Books to the Martin Luther King Jr. Memorial Library! ๐**
๐
**Date:** Thursday, April 23rd, 2026
๐ **Time:** 6:30 PM - 8:30 PM
๐ **Location:** Martin Luther King Jr. Memorial Library, 901 G St NW, Washington, DC 20001
**๐ชง Room:** 401-G Conference Room
**Agenda:**
* **6:30 PM - 6:45 PM** \- Check\-in and chat
* **6:45 PM - 7:00 PM** \- Introductions
* **7:00 PM - 8:30 PM** \- Book swap
**Please note**:
* Gently used books are ideal for swapping.
* If a book you bring isnโt swapped, you are responsible for taking it home.
* This is a โstay-and-swapโ event, so please join with the intention of engaging and connecting with the group.
Health Screenings & Educational Resources
This is a drop-in event, please note: receiving a screening is not guaranteed. Screenings will be provided as time and resources allow. Take charge of your health! Join us for a FREE comprehensive health screening with Luminis Health, where you can get your blood pressure, glucose, A1C, and cholesterol levels checked. You will get all the results of your screening the same day. Based on the screening results, you will be provided educational resources to help improve your health. Ages 18 & up; FREE.
**Kentland Community Center**
For fastest response to any questions, or for more information, please contact Health and Wellness directly via email [wellness@pgparks.com](wellness@pgparks.com)
Scanning Tunneling Microscope - Lab Day - Scanning and Post Processing Images #6
Today we are Steve's Lab. RSVP and you'll be sent the location. It's in Silver Spring.
***Join us for an evening in an electronics lab where we will attempt to run clean scans of gold samples, and then clean up that data with post processing.*** This is a high sensitivity experiment, and we do not plan on being successful so early. But we've had promising results lately - so we will be putting in the time. We are NOT meeting at our usual location, but rather at Steve's house/lab.
If you RSVP, you will get a DM with the address but it's located in Silver Spring.
We will attempt full, clean lab - clean tip repeated scanning tests to see what we can learn and improve. We will experiment with online attendees, but if all possible showing up in person is strongly encouraged. Online join link is: - [https://meet.jit.si/mocomakers](https://meet.jit.si/mocomakers)
Our community is building (and documenting for other teams) how to build a scanning tunneling microscope using a mix of common and 3D printed parts. This will allow us to scan and visualize a single atom - an ambitious we are doing over the course of a few months.
The MoCo Makers community is one of the most innovative and competent groups in Maryland, and we've done everything from [publishing cancer research](https://pubmed.ncbi.nlm.nih.gov/38136356/), to [launching products](https://www.kickstarter.com/projects/gotim/cozy-curvy-multi-contour-pillow), [winning grants](https://covidinfocommons.datascience.columbia.edu/awards/2014255), and inspiring thousands.
Now our biggest challenge yet has appeared. We are building a Scanning Tunneling Microscope, that will allow us to scan and visualize single atoms.
To get a better idea of what we are doing, see our reference project here: [https://www.youtube.com/watch?v=7N3OqTEq08g](https://www.youtube.com/watch?v=7N3OqTEq08g)
All starting CAD, code, and reference files should exist. However, let's be the first Maker community to document the build process and share it with learners around the world.
We will be publishing our work here -[ https://hackaday.io/project/202816-qt-panda](https://hackaday.io/project/202816-qt-panda)
If you need a ride, let us know.
On https://blackecon101.podbean.com/ every Thursday at 6 pm
โข What we'll do
On https://blackecon101.podbean.com/ Thursdays at 6 pm. discussing the economy....
Cryptography Events This Week
Discover what is happening in the next few days
Sunday Code & Coffee - Apr 26
**โ Code & Coffee \| Black Code Collective**
Pull up, plug in, and enjoy some good company.
Join us for a chill Sunday coworking session โ bring your laptop and your current project (or no project at all). All skill levels welcome.
**Free to attend. Coffee & treats provided. Just show up.**
๐
**Sunday, April 26** ๐ **10:30 AM โ 12:30 PM** ๐ **Falls Church, VA**
Please note that we would be located on the 5th floor with the listed address below.
105 W Broad St, Suite #410 ยท Falls Church, VA 22046
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.
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)
Advanced Expression (Level 2 American Rhythm)
[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.**
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
Thursday Kizomba Rendez-Vous Citadel Creole Cuisine
Every other Thursday brought to you by DJ Shams
Playing the best in Kizomba, Urban Kiz, Kompa, Salsa, Bachata.
Whether youโre new to Kizomba or a longtime lover of this soulful dance, this is your space to relax, enjoy the music, and share the dance floor with a vibrant, friendly community.
Come solo or with friendsโno partner needed. Letโs keep the energy flowing and the Kizomba spirit alive!
**๐๏ธ Thursday April 23rd**
**๐ 8:30pm - 9:15pm** **Kompa Class by Leroy**
**9:15pm - 10:00pm** Kizomba Class by Oscar B.A.
**10:00pm - 12:30am** Music by DJ Shams
๐ Citadel Creole Cuisine 11300 Fern St. Silver Spring, MD
๐๏ธ $15 (Social + 1 Class)
๐๏ธ $20 (Social + 2 Classes)
See you on the dance floor!
Cryptography Events Near You
Connect with your local Cryptography community
NSCoder Night
Bring your work or your hobby, hang out, and code with us.
Follow @buckeyecocoa for more information.
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 actsโlike lyingโare wrong regardless of the consequences; you canโt 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 โhigherโ than others, and that good intentions donโt 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?
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 Chris Pazsint will be talking about Agentic Coding. How does one use CLI Based Agents, and Agentic IDEs such as Cursor, Kiro, Antigravity? How to include agentic coding plugins for IDEs you already love such as Visual Studio Code.
We meet on the last Monday of each Month. Presentations are given by members and friends of this group. If you would like to do a presentation (small or large) on a python topic, please contact Central OH Python at centralohpython@gmail.com
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
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/
Afternoon Coffee Break!
(craft and chit chat included)๐คฃโ๏ธ๐ค
**Letโs catch up and take an afternoon break.**
**Grab a coffee or snack and letโs chit chat! Gayle and I will bring adult coloring books and/or a simple craft if youโd like to unwind and relax.๐**
Columbus HUG April
Want to be a speaker? submit your talk to our Call for Presenters!!!
https://sessionize.com/cbus-hug-2026/











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