21stCapital
21st Capital

https://cal.com/21stcapital.com/introduction-call-bitguide?month=2024-08&date=2024-08-20

#Bitcoin Custody, Advising, Research
Book a free consultation session with us now!

Public Key

npub1zxsucpq7g3a9m4dzlgqc69rwc7pra5nz0hsgrnya5wg46nuatj5qus2knw

NIP-57 Address

purplezebra6@primal.net

Profile Code

nprofile1qqsprgwvqs0yg7ja6k305qvdz3hv0q376f38mcypejw68y2af7w4e2qpzemhxue69uhhyetvv9ujuurjd9kkzmpwdejhg5hff6l

Publishing to

relay.primal.net

Author Public Key

npub1zxsucpq7g3a9m4dzlgqc69rwc7pra5nz0hsgrnya5wg46nuatj5qus2knw

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Last Notes

2025-02-08 16:01:32

🚨 LIVE TODAY: Best Bitcoin Hot Wallets! 🚨
Which wallet should you trust with your Bitcoin? 🤔 Ziya Sadr & @nprofile…fy4l break down the top options, key features & security tips! 🔥
📅 Today
⏰ 19:00 CET | 22:00 UAE | 13:00 ET
🎥 Live on YouTube, X, and @nprofile…gn5a !
Set a reminder & bring your questions! ⏳👇 #Bitcoin #Wallets
https://www.youtube.com/watch?v=HN-WXFbAxCE

2025-01-18 10:44:08

🚨 Protect Your Bitcoin Like a Pro! 🚨
Join Ziya and me (@`Momo Tahmasbi`) for a LIVE show where we’ll uncover the best ways to secure your seed phrase and back it up safely. 🛡️
Here’s what we’ll cover:
✅ Common mistakes to avoid
✅ Foolproof backup strategies
✅ Tools to make your Bitcoin security bulletproof
Don’t let a lost seed phrase cost you your Bitcoin! 💸
📅 Date: 18 Jan
⏰ Time:
13:00 Eastern Time
19:00 CET
22:00 UAE
📍 Where:
YouTube:
https://www.youtube.com/live/T5HLpp8fKBM
@zap.stream link will be shared the moment we are LIVE!
Let’s make your #Bitcoin future-proof! 🚀
https://i.nostr.build/wkatkv3dGEq3k4fV.png

2025-01-05 13:06:16

🎥 We're going LIVE with @nprofile…zrjy on Jan 7 to explore the essentials of #Bitcoin self-custody & unveil the Smart Vault—our bullet-proof solution for securing your Bitcoin.
🕒 Time:
12:00 CT | 19:00 CET | 22:00 UAE
📺 Set a reminder: https://youtube.com/live/kvda-Ff4yhw
⚡ The @zap.stream link will be shared when we go live.
Don't miss it! 🚀

2025-01-04 15:42:57

@nprofile…6av2 Jade Plus is out and it looks so sexy!
https://store.blockstream.com/?bg_ref=0TYchGPC9e
https://i.nostr.build/X2qeKNpmCM276lxL.jpg

2025-01-04 14:26:36

Here’s a must-watch excerpt from our interview with @npub1pxm…zxfl.
Make sure to give Chase a follow 💜
#note1363…50wm

2025-01-03 13:26:05

What happens when a Bitcoiner & UFC trainer loses 0.8 BTC? Resilience kicks in. 🥋💪 Join us live as Chase Chicos shares his story of loss, lessons, and redemption in Bitcoin.
Don’t miss this inspiring session! 🔥 https://www.youtube.com/watch?v=aFDIJqz6ric

2025-01-02 19:54:53

🎙️ Flashback to an epic podcast!
CEO from 21st Capital
@rkbtc
and
@pahueg
shared game-changing tips on how to 10x your Bitcoin security. If you haven’t heard it yet, you're missing out! 🛡️
Don’t wait – watch now:
https://youtu.be/6BcvxE1G7iE

2024-12-30 21:04:54

We Say Thank You!
2024 has been a year of incredible growth for 21stCapital. We've brought so many wonderful people on this journey with us, hit incredible milestones, and deepened our passion for Bitcoin.
As we look ahead to 2025, we’re ready to keep building, keep growing, and keep empowering our community. We’re doing what we love, and there’s no stopping us. We’re here for the long haul, creating something future generations will talk about.
Thank you for being part of this amazing ride!
https://v.nostr.build/PYIJynEEjqHvX1Gd.mp4

2024-12-22 20:39:43

The Next Big Thing in Bitcoin: How Bitcoin Covenants Change the Game
This is the second LIVE show by Ziya and @npub1heq…kx28.
Join us for a discussion about Bitcoin covenants at:
00:00 UAE Time
15:00 Eastern Time
21:00 CET
Follow the live on YouTube or @npub1eaz…rcgz.
YouTube: https://www.youtube.com/watch?v=orDt2viu7uc
ZapStream: Will be shared when the live begins - stay tuned!

2024-12-21 11:14:47

Is Quantum Computing the End of Bitcoin?
Join us today!
19:00 CET
13:00 Eastern Time
22:00 UAE Time
https://www.youtube.com/live/v8lILdMpKWA
@zapstream link will be published here the moment we go LIVE!
https://i.nostr.build/ccQo8Uq4R126EwD7.png

2024-12-20 18:55:54

We’re going LIVE tomorrow to explore quantum computing and what it means for the future of #Bitcoin! 🚀
Don’t miss out—stay tuned for the exact time and join the conversation! ⏰
https://i.nostr.build/ccQo8Uq4R126EwD7.png

2024-12-18 08:51:43

For some reason, the quoted reposts don’t show as Reposts stats.
Though we have reached the goal of 21 actual reposts, just to make the number of reposts a beautiful 21, still one extra person is eligible for a 2100 zap reward ⚡️
https://m.primal.net/MzdM.jpg

2024-12-17 15:57:43

🎄 Christmas Special! 🎄
Share the cheer and get rewarded!
I’m zapping 2100 sats to the first 21 people who share the quoted post! ⚡
And here’s more: Book a session with us as part of our Christmas promo and get two hardware wallets shipped for free! 🎁
Let’s light up Nostr together this holiday season. 🎅✨
#note1jlg…x0lr

2024-12-17 15:36:53

Behind the scenes with our CEO, Ruzbeh, as he’s being interviewed by Pahueg.
- discussing the future of self custody. 🌊🚤 A unique setting for bold insights! 😍
https://v.nostr.build/v6OCusUvvOUCbqMR.mp4

2024-12-17 15:34:47

21st Capital's team at Bitcoin Mena
https://v.nostr.build/To9t7KjJOsXtKXtF.mp4

2024-12-17 12:17:11

🎅🎄 Christmas Giveaway! 🎄🎅
Step into 2025 with SecureReadySet!
Book an onboarding session & get:
🎁 2 FREE hardware wallets
Use code SECUREXMAS at checkout.
⏳ Ends 31.12.2024 – Don’t wait!
👉 https://eu1.hubs.ly/H0fpt_v0
Kickstart your secure journey today! 🚀
#21stcapital
https://i.nostr.build/YhPvBAJvEdDpMQkJ.png

2024-12-16 13:48:53

2024-12-06 12:28:51

How to Set Up Your Smart Vault using @npub1jg5…6n8n Jade
https://www.youtube.com/watch?v=LCcHTR2YrsY

2024-11-30 19:43:42

#Bitcoin Thrives When Left Alone
https://v.nostr.build/OT5HrD11llUXFgdP.mp4

2024-11-22 17:20:55

MicroStrategy vs. Meme Coins: Is This the End of Alt Season?
https://v.nostr.build/B5cBwUKaN7lj5akT.mp4

2024-11-06 21:17:22

Never Lose Your Bitcoin Again!
How to Set Up Your Own Smart Vault by Ziya Sadr
https://www.youtube.com/watch?v=vI4gRwcfVU8
Need help with the setup?
Book a personalized DEMO with us:
https://21stcapital.com/nostr

2024-11-01 16:33:14

Ready to take control of your #Bitcoin security?
Learn how the Smart Vault simplifies self-custody, strengthens security, and even supports inheritance planning!
Say goodbye to leaving your assets on exchanges.
Watch now to protect your Bitcoin the right way.
https://youtu.be/d4dddstisNQ

2024-10-27 18:24:12

Our launch video now has timestamps - feel free to jump to your favorite topic!
https://youtube.com/live/ed7zYe1U08o

2024-10-25 18:20:40

Sina: "Most #Bitcoin is lost due to user error, not due to a cyber attack!"
https://zap.stream/naddr1qqjx2wfnvscnvd3c95cnwetr956rydp595urxvp5943nxwpex5ckxvnpvsurxqgwwaehxw309ahx7uewd3hkctczyr85tf46zd366lkjzws83ecs6fq3ttnjrjd500g7haz936h0knp22qcyqqq8vec4ptqes

2024-10-25 18:14:44

Ziya Sadr: "Bitcoin is designed for self-custody!"
https://zap.stream/naddr1qqjx2wfnvscnvd3c95cnwetr956rydp595urxvp5943nxwpex5ckxvnpvsurxqgwwaehxw309ahx7uewd3hkctczyr85tf46zd366lkjzws83ecs6fq3ttnjrjd500g7haz936h0knp22qcyqqq8vec4ptqes

2024-10-25 18:00:49

Here's our ZapStream link!
LIVE NOW!
https://zap.stream/naddr1qqjx2wfnvscnvd3c95cnwetr956rydp595urxvp5943nxwpex5ckxvnpvsurxqgwwaehxw309ahx7uewd3hkctczyr85tf46zd366lkjzws83ecs6fq3ttnjrjd500g7haz936h0knp22qcyqqq8vec4ptqes

2024-10-25 17:39:55

21st Capital's groundbreaking #Bitcoin custody solution enables EVERYONE to hold their own Bitcoin, without trusting a third party!
Join our LIVE in less than half an hour to learn more!
We're gonna go live on @npub1eaz…rcgz, X, and YouTube.
Youtube link: https://youtube.com/live/ed7zYe1U08o

2024-10-24 23:12:26

Join us LIVE to learn more about the Smart Vault - the best Bitcoin custody solution!
14:00 Eastern Time
20:00 CEST
Youtube LIVE link: https://www.youtube.com/watch?v=ed7zYe1U08o
This event will be available LIVE on @npub1eaz…rcgz too!
https://v.nostr.build/4i1bejTLQ8qX1Orm.mp4

2024-10-23 02:20:21

21st Capital's LIVE launch event coming up this Friday, 25th of October!
Stay tuned!
https://i.nostr.build/xgdqWKrloMuqQ4h3.png

2024-10-22 14:58:41

BEST BITCOIN DATA SHOW – E05
Live stream today at 12 pm Eastern time (in 90 minutes)
Featuring PlanC, Sminston With, and Sina will discuss Bitcoin valuation models, a mother-of-all list of top Bitcoin analysts, and more.
Join us live at: https://youtube.com/live/LsXb3Qy6IpU

2024-10-19 10:20:59

Best Bitcoin Data Show - Ep. 04
Bitcoin pump, model updates, MSTR value
https://www.youtube.com/live/IR4CP2SAHC0?si=3D-LciSiuTFfiam9

2024-10-15 18:05:48

Building a More Robust Self-Custody Model
The future of self-custody lies in solutions that reduce complexity and address the shortcomings of the current methods.
Currently, a mistake means losing your coins forever.
A better system, however, allows a backup mechanism.
Wouldn't it be great to set up a hack-proof multi-sig with a backup mechanism that also makes it mistake-proof and allows you to recover funds in case you mess up?
We are introducing such a solution in the coming weeks.
Join http://waitlist.21stcapital.com to be among the first who are notified.

2024-10-13 09:32:40

Bitcoin Undervalued Relative to Gold
Special guest: Matthew Mežinskis
https://www.youtube.com/live/0PVAwnsyKb4

2024-10-11 16:22:38

- reply

Getting there. We just need more views.

2024-10-08 16:40:43

We reached 1K followers on YouTube!

2024-10-05 20:26:34

Bitcoin Market Is Still Cool
21stCapital's Sina interview with PlanC
https://youtu.be/SuKh3DIr20k

2024-09-30 18:52:22

A new Bitcoin show is on the rise - Best Bitcoin Data!
Episode 01 - Sina featuring Plan C
https://youtu.be/uMVzRAq7Y1k

2024-09-21 04:19:43

SEC Approves iShares Bitcoin Trust ETF!
Find Out Why It's A Game Changer!
https://youtu.be/HFt3rJcBoZw

2024-09-19 23:31:53

Trading Is All About Luck!
https://v.nostr.build/ilyjtqilsJBOCRFo.mp4

2024-09-19 03:37:27

Why There Is No Second Best! #Bitcoin
https://v.nostr.build/pQYNJCHFkR29n8tQ.mp4

2024-09-19 03:36:25

Bitcoin Is Good Enough for 10Xing the Number of Users!
https://v.nostr.build/u2uWUfmdPtL3my49.mp4

2024-09-19 03:11:21

Supply chain attacks are a growing threat to Bitcoin hardware wallets.
Learn how cybercriminals tamper with devices before they reach you, and why it’s crucial to protect your #Bitcoin.
Real-world cases, risks, and practical tips—watch now to safeguard your Bitcoin!
https://youtu.be/5pTJf6TxK5w

2024-09-18 10:33:11

Bitcoin or NVIDIA? Is AI the Next Big Thing?
Stephen Perrenod and Sina's Take
https://v.nostr.build/6FhXEpy2VyjkH946.mp4

2024-09-18 00:55:39

Bitcoin or NVIDIA? Is AI the Next Big Thing?
Stephen Perrenod and Sina's Take
https://v.nostr.build/XcEh8wrYhkqjjV0L.mp4

2024-09-17 22:03:14

Gambling Is More Profitable Than Trading!
Ruzbeh in conversation with @npub1mrm…eyr9
https://v.nostr.build/A2qeTCng53daEJE5.mp4

2024-09-17 16:07:00

- reply

Dr. Berry, we’re a great fan of your work! Here’s our special offer to you:
https://cal.com/21stcapital.com/introduction-call-bitguide
At 21st Capital, we help Bitcoiners like you with securing your wealth.
As a short answer , Coinbase Bitcoin is simply an IOU. You’ll lose the coin if they default. We recommend a more secure setting including well-known hardware wallets such as ColdCard, @npub1jg5…6n8n Jade and @npub1tg7…cxmt .

2024-09-06 13:41:04

I had a fascinating chat with Dr. Stephen Perrenod, a Harvard & MIT alumnus, about Saylor's Bitcoin models. Stephen, with his background in astrophysics and high-performance computing, offers an in-depth critique and analysis.
🎥 Watch the full interview now!
🔗 https://youtu.be/_xKA6qPWwME

2024-09-05 20:45:40

Stephen Perrenod: The Issues with Saylor's Bitcoin Models
https://v.nostr.build/CmglGx5D46IoQTic.mp4

2024-09-05 20:42:56

Giovanni Santostasi compares Saylor's Bitcoin price models (Bitcoin24) to Dumb and Dumber characters!
https://v.nostr.build/IarRNPy7XkGmWmbH.mp4

2024-09-05 06:57:53

We are reaching 400 subscribers on YouTube after a short period of focusing on our English Channel.
This video about Saylor’s models has been getting the most views:
https://youtu.be/v6QObGxqMCM
Watch, comment, like, and subscribe and let your friends know about us!

2024-09-03 09:20:13

Saylor Went From All Models Destroyed to All Models Welcome!
On August 30th, Michael Saylor unveiled a suite of Bitcoin models forecasting its price over the coming decades under bear, base, and bull scenarios.
Giovanni Santostasi and Sina dive into these models, exploring their assumptions and price predictions.
Giovanni is the creator of the Bitcoin Power Law theory, which is a powerful tool for modeling and predicting Bitcoin price.
https://youtu.be/v6QObGxqMCM

2024-09-02 22:26:24

Stay tuned for an interview with Giovanni Santostasi, the creator of the Power Law Index
Here's an excerpt of the interview where we talk about Michael Saylor's recent Bitcoin price prediction models.
https://youtu.be/b8WxgPN0L4o

2024-08-29 11:18:32

- reply

https://www.youtube.com/@21stCapital

2024-08-29 11:18:16

- reply

https://www.youtube.com/@21stCapital

2024-08-29 11:18:00

Just recorded an incredibly interesting conversation with
Fred Krueger, the co-author of The Bitcoin Book!
He explores his life journey, success secrets, and unique perspectives on Bitcoin.
It will be a series of episodes. The first part to be published soon on our YouTube channel (link below).
https://v.nostr.build/UyaAjZS1Bs4BqVVA.mp4

2024-08-29 10:54:53

Unrealized Capital Gains Tax
How It Punishes Success and Innovation
https://v.nostr.build/5OgoIzZIq0qOZGAP.mp4

2024-08-23 23:11:18

Funny things that may happen due to @npub12vk…pugg ‘s multi-account feature 😂
#note14qk…wca0

2024-08-23 22:14:33

امشب تصمیم گرفتیم «جن‌گیری امیلی روز» رو ببینیم، یهو دیدیم شهره آغداشلو هم توش بازی می‌کنه!

2024-08-19 14:46:16

Here's the first post from 21stCapital's #Nostr profile!
Bitcoin is hope!
Nostr is the future!
We're in the front seat of a revolutionary movement!