iamgeoffroy

Bitcoin Evangelist. Bitcoin Only, not Crypto

Public Key

npub1qudj2serjcad0vdh9xgacztxtzklrgqh7nh887h36us0cx4dzues6jucgn

Profile Code

nprofile1qqsqwxe9gv3evwkhkxmjnywup9n93t035qtlfmnnltcawg8ur2k3wvcpz4mhxue69uhhyetvv9ujumn0wd68ytnwv46qz9rhwden5te0wfjkccte9ejxzmt4wvhxjmcqdzgkx

Publishing to

relay.nostr.net

relay.damus.io

nos.lol

Author Public Key

npub1qudj2serjcad0vdh9xgacztxtzklrgqh7nh887h36us0cx4dzues6jucgn

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Last Notes

2026-08-04 10:20:08 UTC

July 26–August 8, 2026.
A month ago, I had the opportunity to attend Bitcoin Mastermind, the very first Bitcoin conference in Francophone Africa.
The event brought together key players who—each in their own way—are contributing to the democratization, development, and adoption of Bitcoin in Africa and around the world.
One panel stood out to me in particular: the one featuring @Loicbtc and @carine_impact on the future of money in Africa.
I walked away with valuable lessons, insights, and a clear perspective.
For me, that future is Bitcoin. Not mobile money. Not fiat currency.
I deeply believe that money should be a tool accessible to everyone, regardless of where they live or their social standing.
The problem with mobile money and fiat currency is that they aren't neutral. You have to sign up, register, go through intermediaries, and sometimes deal with outages or malfunctions that are completely beyond your control.
Bitcoin, on the other hand, requires none of that. It is neutral and open to all social classes. A phone, an internet connection, and you're all set.
It was a great pleasure for me to participate in #BMM2026.
I hope to see many of you there for the next edition.
CIAO👋.
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2026-07-22 09:34:40 UTC

Al, as in @nprofile…dnaz 🏃.
It was at #BMM2026 ✌.
@nprofile…v0jh @nprofile…243t
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2026-07-09 09:22:31 UTC

Bitcoin Walk in Street Republic of Benin
#ProofOfWork
@nprofile…azd9
https://blossom.primal.net/6aa196d37a1346f373d990681e60681e6e2c61b8f72cee1a332387fc2f53308c.mp4
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2026-06-19 07:09:22 UTC

Most people buy Bitcoin to accumulate it and see its value increase in the future. Which is a good thing, by the way.
But you should know that you can also use Bitcoin to pay for your lunch, bills, phone credit, etc.
In fact, that's what I did a few days ago. I spent my Bitcoins on some degue (a type of millet porridge), without the vendor even knowing about Bitcoin, thanks to Flash.
@nprofile…3kp8 , @InesSatoshi, and all Bitcoiners, when you're in Benin, you'll be able to use your Bitcoins without any problems.
@nprofile…s336 @nprofile…2pcv @nprofile…2xse @nprofile…np6l @nprofile…c24w @nprofile…vtll
https://blossom.primal.net/c00e1e1c6c15d92c736bbac6565fd332b290fca9b31efc7af147a057b66015ba.mp4

2026-06-08 05:49:52 UTC

I'm happy to be part of this first cohort of the Francophone Africa Bitcoin Academy.
I learned a lot, received updates, and most importantly, met new people.
Thank you @Afribitcoiners for this great initiative, thank you to @Ladyyyy_lo for organizing it, and thank you to all the instructors.
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2026-06-05 06:44:33 UTC

Another Day,
Another #ProofOfWork,
Let's running 🏃
Cc @nprofile…243t @nprofile…dxwt
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2026-05-31 19:38:26 UTC

If you don't yet understand the "but" in Bitcoin, don't worry. Let me explain. For us Christians, Jesus Christ came into this world to bring us peace, freedom, and to liberate us from the grip of evil.
Think of Bitcoin in exactly this way, as a metaphor. Bitcoin was created so that we could regain our freedom, our sovereignty, and our financial autonomy.
It came to free us from the grip of the traditional banking system.
For me, financial sovereignty is the ability to access your funds at any time, regardless of your location, without depending on any central entity.
This is precisely what Bitcoin allows, where the traditional banking system fails.
The reason is simple: the traditional banking system doesn't operate 24/7. Bitcoin, on the other hand, has operated almost continuously since its launch. (An additional feature that caused a bug that didn't last a minute.)
This is just one point among many.
If you'd like to learn more about financial sovereignty and how the traditional financial system works, I invite you to the Bitcoin Mastermind conference, which will take place from July 3rd to 5th, 2026, at the Golden Tulip Le Diplomate Hotel in Cotonou.
📸: #BMM2024
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2026-05-30 08:42:44 UTC

Another Saturday.
Running feels good🤩.
#PoW @nprofile…243t
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2026-05-27 20:47:55 UTC

PoW🔥🔥
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2026-05-22 22:16:59 UTC

Happy Bitcoin Pizza Day 🍕
Bitcoin Mastermind will be held from July 3rd to 5th, 2025 at the Golden Tulip Le Diplomate in Cotonou.
See you soon ✌
#BitcoinPizzaDay #PizzaDay #BMM2026
https://blossom.primal.net/d082df879aca87b3443a9127b6aecfe6999bce5e0eac4425cfb56b62b3d7081c.mp4
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2026-05-21 15:48:38 UTC

- reply

Waouh 👏

2026-05-21 09:49:25 UTC

I learned something from @nprofile…205a 's book "21 Lessons", there are two truly rare things: Bitcoin and Time.
#fact
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2026-05-21 09:34:46 UTC

Recovering.
Getting back into good habits.
Proof Of Work
@nprofile…vj68
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2026-05-20 09:02:44 UTC

- reply

gm gm

2026-05-20 09:02:32 UTC

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I like it🤩

2026-05-20 08:32:48 UTC

WE ARE ALL SATOSHI ⚡
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2026-05-20 08:25:34 UTC

2026-05-18 09:16:25 UTC

No Shitcoin inside
Tickets for @btcmastermind are now available.
Visit 👇
https://btcmastermind.xyz/tickets
📸: Place Goho, Abomey, Republic of Benin.
https://blossom.primal.net/b6ab33ea9daaf1c74abd4e6c67d9ea97e408178a45bc28907b1b0b71e013c7b7

2026-05-17 08:23:35 UTC

gm pleb👋⚡

2026-05-16 14:51:46 UTC

Why am I inviting you to participate in Bitcoin Mastermind 2026? My first reason
Two years ago, I fell down the Bitcoin rabbit hole. Very quickly, I understood one thing: There is a huge amount to learn… and alone, it can take years.
But with the right network and the right method, you can dramatically accelerate your progress.
That's what motivated me to participate in the very first French-language Bitcoin conference: Bitcoin Mastermind.
My very first Bitcoin conference. And, without realizing it, one of the smartest decisions of my career.
There, I met:
-Bitcoiners who are already building, -entrepreneurs,
-curious individuals,
and above all… opportunities for collaboration.
I also discovered major players in Bitcoin education like Plan B Network and Btrust.
But the most striking thing?
👉 I didn't just leave with knowledge.
👉 I left with connections.
👉 And real collaborations.
I'm going back this year. And I sincerely hope you'll join me.
Tickets are on sale now. Get your PASS.
https://btcmastermind.xyz/tickets
See you down the deep Bitcoin rabbit hole. 🐇🧡
📸: #BMM2024
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2026-05-14 06:32:31 UTC

No comment
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2026-05-13 23:34:01 UTC

- reply

🤩👏👏
#nevent1q…7a62

2026-05-13 07:34:46 UTC

Hey @BitcoinRunners 👋
A quick 5km run to unwind and relieve stress.
When will Africa Bitcoin Day take place in Benin 🇧🇯, @AfroBitcoinOrg? 👀
Tickets for @btcmastermind_ 2026 are already available 👇.
https://btcmastermind.xyz/tickets
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2026-05-02 05:42:19 UTC

- reply

😅😅

2026-05-01 03:23:14 UTC

Day 30: Write and share five things you've learned from this challenge.
Hi everyone! I hope you're all doing well. A month ago, I came across @Confortdavidee's tweet announcing their participation in the #AprilChallenge organized by @BitKwa.
So, I decided to join the adventure. Over the past month, I've learned several things, five of which I'm going to share with you.
1) You never stop learning. Bitcoin is a recent technology that's evolving rapidly. It's therefore essential to stay informed.
With this in mind, Bitcoin Benin organizes two meetings per month: a meeting and a Bitdevs session. If you're in Benin, join us for the upcoming sessions.
In this spirit of learning, @africanbitcoiners is launching its first cohort of the Bitcoin Africa Academy.
Here's the link to participate: https://bitcoiners.africa/academie-bitcoin-afrique/
2) Bitcoin is a decentralized, censorship-resistant network powered by the currency bitcoin.
3) Forks will eventually disappear, but Bitcoin will last a long time. So, choose your investments wisely.
4) No one can stop Bitcoin.
5) We change Bitcoin more than we change them. Here are five lessons I learned during this challenge that I want to share with you.
Thank you to @BitKwa for this initiative.
Thank you to everyone who liked my posts.
A special thank you to @ProfEduStream who liked my posts from beginning to end.
Thank you to everyone who skips my posts. Thank you to my Bitcoin Benin community.
#AprilChallenge #KeepLearningBitcoin #KeepSharing #KeepGrowing
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2026-04-29 17:52:57 UTC

Day 29: Comment on and like 5 recent BitKwa posts on X and Instagram.
Task successfully completed ✅ See you tomorrow for the next challenge
#AprilChallenge #KeepLearningBitcoin #KeepSharing #KeepGrowing

2026-04-28 18:25:47 UTC

Day 28: Say hi to BitKwa on your social media!
Hi to the entire BitKwa community! I wish you all the best in this amazing mission to hyperbitcoinize your economy. 🚀₿
#AprilChallenge #KeepLearningBitcoin #KeepSharing #KeepGrowing

2026-04-27 17:45:39 UTC

Day 27: Give examples of concrete applications of Bitcoin.
Today, I'll give you some examples of what you can do with your bitcoins.
You can:
- Pay your bill at a bar, café, restaurant, hotel, pharmacy, or supermarket that accepts Bitcoin as a payment method.
Some places in Benin that accept Bitcoin: AfroSnaks in Akpakpa, Chez Fernando in the ENA cafeteria at UAC, Cheffé de Scène in Zogbo, Rama Café in Vodjè.
Find all these places that accept Bitcoin and check them out here 👇 https://btcmap.org/community/benin/merchants
- Conduct international transactions without intermediaries.
- Save against inflation.
- Keep your money without needing a bank. - Make transparent humanitarian donations to organizations like @nprofile…z3w5.
-Contribute financially to projects on sites like @nprofile…7r2q
-Make online payments: web hosting, digital services, and more.
-Zap ⚡contents,
-And much more.
Here's a list of what you can do with Bitcoin.
If you know of any others, leave them in the comments, and see you next time!
#AprilChallenge #KeepLearningBitcoin #KeepSharing #KeepGrowing #introductions
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2026-04-26 18:36:04 UTC

Day 26: What is BitKwa's mission?
BitKwa is a community exclusively dedicated to Bitcoin, based in Kwara State, Nigeria.
Its mission is to promote adoption, educate, and empower Bitcoin developers in Nigeria through Bitcoin projects.
See you tomorrow for the next challenge.
#AprilChallenge #KeepLearningBitcoin #KeepSharing #KeepGrowing
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2026-04-25 21:03:33 UTC

Day 25: What are your plans regarding the use of and engagement with Bitcoin?
Personally, I continue to learn about Bitcoin, because you never stop learning.
Bitcoin is a robust technology, and this is confirmed every day.
I actively participate in the Bitcoin circular economy in Benin.
I plan to:
- contribute to the growth of the Benin Bitcoin community by inviting new people to join.
- get involved in Bitcoin projects, whether technical or non-technical.
I also want to participate in Bitcoin conferences in Africa and around the world.
And above all… stack sats ⚡.
See you tomorrow for the next challenge. #AprilChallenge #KeepLearningBitcoin #KeepSharing #KeepGrowing
Photo Credit 📸: With my friend Prosper Degue ✌.
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2026-04-24 16:28:25 UTC

Day 24: Name four educators from the first cohort of the BitKwa Bitcoin Diploma.
Today, we're highlighting the educators who guided the very first cohort of the Bitcoin BitKwa Diploma.
After some research, here are four key figures who educated this group:
- Coach Ayobami
- James Otudor
- Félix Mukungu
- Sarah White.
A huge thank you to them for the quality of their work and the impact they had on the students.
See you tomorrow for the next challenge.
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2026-04-23 18:59:11 UTC

Day 23: What can we say about the Lightning Network?
What if you could send bitcoins to the other side of the world in less than a second for just a few cents?
That's exactly what the Lightning Network makes possible.
The Lightning Network is a Layer 2 payment channel network built on top of the Bitcoin network. It aims to enable instant and, above all, low-cost transactions.
As you already know, it takes about 10 minutes for a Bitcoin transaction to be confirmed on the blockchain.
This isn't very convenient when you want to pay for a coffee, settle a bill, or send money quickly. Furthermore, fees can become very high during periods of high network activity. That's precisely where the Lightning Network comes in.
The Lightning Network transforms Bitcoin into a fast, accessible, and borderless everyday payment tool.
To learn more, I recommend watching this video 👇 https://youtu.be/hHz-ALx8D9w?si=52bj9FGtay0zXNJo
See you tomorrow for the next challenge.
#AprilChallenge #KeepLearningBitcoin #KeepSharing #KeepGrowing
Photo Credit: Bloc 67
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2026-04-22 15:31:23 UTC

Day 22: What is the value of the bitcoins you hold?
Today, we're being asked something extraordinary 😀.
As of today, I own 630 sats worth 273 CFA francs. That's all, but feel free to share 😁.
The wallet I use is @Mannabitcoin. You hold your own private key.
You can find all the information you need at 👇 mannabitcoin.com
In any case, challenge accepted ✅.
#AprilChallenge #KeepLearningBitcoin #KeepSharing #KeepGrowing
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2026-04-21 17:05:16 UTC

Day 21: What can be said about Bitcoin's security?
Bitcoin is a combination of several carefully assembled cryptographic technologies.
It's a network where everyone can see all transactions, but no one can modify or delete them. And since no one controls Bitcoin, no state can shut down or destroy the network.
On the Bitcoin network, transactions are pseudonymous. This means that everyone can see what an address contains, but no one knows who it actually belongs to unless you reveal it yourself.
Everyone can see what you own through your public key, but no one can access it. Only you have access to it using your private key.
Are you wondering if someone can guess or hack your private key?
The answer is simply NO.
Your private key is based on a 256-bit number. The number of possible combinations to find your private key is greater than the number of atoms in the observable universe.
Even if you gathered all the most powerful computers in the world, they still wouldn't be able to guess it, even in billions of years.
The only way someone can access your private key is if you've shown it to them, either intentionally or carelessly. A picture of your seed phrase, a fraudulent website, a phishing message these are all possibilities.
Above all, remember this rule: "Not your keys, not your bitcoins."
Bitcoin is one of the most secure technologies ever created, provided you take responsibility for your own security.
See you tomorrow for the next challenge.
#AprilChallenge #KeepLearningBitcoin #KeepSharing #KeepGrowing
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2026-04-19 18:23:36 UTC

Day 19: What is a Bitcoin wallet? Give some examples.
A Bitcoin wallet is software or an application that allows you to receive, send, and store the private key that grants access to your bitcoins.
It generally includes a public key, which allows you to receive bitcoins, and a private key, which grants access to the bitcoins and signs transactions. There are several Bitcoin wallets available. Some examples include @cakewallet, @mannabitcoin, @Blink, @walletofsatoshi, @Trezor, and many others.
In the coming days, we will look at the different types of wallets that exist.
"Not your keys, not your bitcoins." Remember this golden rule.
That's all for today. See you tomorrow for the next challenge.
Tell me in the comments which wallet you use and why.
#AprilChallenge #KeepLearningBitcoin #KeepSharing #KeepGrowing
Photo credit: Loïc Kassa
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2026-04-18 18:39:08 UTC

Day 18: Why Was Bitcoin Designed to Have a Limited Supply?
Hi everyone. I hope you're all doing well. Today, I'm going to answer the question of why Bitcoin has a limited supply.
For a currency to fulfill its role properly, it must meet several essential criteria: it must be exchangeable, divisible, verifiable, portable... and scarce. It's this last criterion that fiat currencies like the dollar, the euro, the CFA franc, and others have gradually abandoned because central banks print banknotes at will, especially during times of crisis. The result: more banknotes in circulation, and less money is worth. This is the mechanism of inflation: your money silently loses value while the cost of living increases.
To address this dysfunction in the traditional system, Satoshi Nakamoto enshrined in Bitcoin's source code a limited supply of 21 million:
-to make the currency deflationary,
-to make monetary policy predictable,
-to protect purchasing power,
-to preserve the inherent value of what one actually owns.
Satoshi also implemented a mechanism called the Halving, whereby approximately every four years, the reward for miners who secure the network is halved, progressively slowing the creation of new bitcoins until the last one is mined around 2140. That's all for today.
See you tomorrow for the next challenge. #AprilChallenge #KeepLearningBitcoin #KeepSharing #KeepGrowing
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2026-04-17 18:18:20 UTC

Day 17: Invite someone to join the Bitcoin Benin community
If you'd like to learn more about Bitcoin, I invite you to join our Bitcoin Benin community if you're in Benin, and BitKwa if you're in Nigeria.
You are also my special guests from July 3rd to 5th, 2026 at the Bitcoin Mastermind conference, which will be held at the Golden Tulip at Cotonou.
#AprilChallenge #KeepLearningBitcoin #KeepSharing #KeepGrowing
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2026-04-16 17:25:47 UTC

Day 16: What's your favorite activity so far on Bitcoin Benin?
I appreciate all the activities organized by Bitcoin Benin, but my favorite is still Bitcoin School, run in collaboration with @TrezorAcademy.
Through this program, Bitcoin Benin trains and supports many newcomers in their understanding of Bitcoin.
A big thank you to @TrezorAcademy for their support and commitment.
#AprilChallenge #KeepLearningBitcoin #KeepSharing #KeepGrowing
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2026-04-15 17:40:58 UTC

Day 15: Can money exist without banks?
Explain.
I think money can exist without banks. In ancient civilizations, banks didn't exist, but forms of money were already in use: seashells, salt, precious metals, and gold and silver coins.
Banks appeared later to solve practical problems: securing gold, facilitating remote payments, and issuing receipts for exchanged transactions. Over time, these receipts became money, giving rise to fiat currencies.
Therefore, money can exist without banks. Bitcoin is proof of this: a solid currency that operates without banking intermediaries. Today, we can send and receive value across the globe without going through a bank, thanks to Bitcoin.
#AprilChallenge #KeepLearningBitcoin #KeepSharing #KeepGrowing #introductions
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2026-04-09 19:12:57 UTC

- reply

Absolutely
#nevent1q…akc5

2026-04-09 19:11:02 UTC

Day 9: Who Created Bitcoin and Why Is It Important?
After the subprime mortgage crisis in 2008, as the world was experiencing profound financial chaos, an individual or group of people using the pseudonym Satoshi Nakamoto published a white paper on October 31, 2008, on a cryptography mailing list, explaining how their invention, Bitcoin, worked.
On January 3, 2009, the genesis block was mined, marking the beginning of the Bitcoin network.
Satoshi Nakamoto created Bitcoin with the aim of:
-transferring the properties of cash into cyberspace,
-eliminating the need to trust banks,
-separating money creation from institutions, protecting privacy (a fundamental right), -restoring financial sovereignty to individuals, and many other reasons.
That's all for today. See you tomorrow for the next challenge.
@BitcoinBenin @BitKwa
#AprilChallenge #KeepLearningBitcoin #KeepSharing #KeepGrowing
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2026-04-08 16:38:29 UTC

Hello everyone.
My name is Geoffroy, and I'm learning about Bitcoin.
From the 23rd to the 25th, I participated in @HRF 's Financial Freedom event, which focused on "How NonProfit can use Bitcoin to navigate Financial Repression."
During these three days, I learned about the useful tools (wallets, exchanges, servers) that non-profit organizations can use, and how they can receive donations worldwide without relying on the traditional system or centralized platforms.
Thank you @Graysatoshi and my @BitcoinBenin community for sharing.
Thank you @nprofile…4sn7 for all the values and concepts you shared with us. Thank you @nprofile…fh3z and @nprofile…pk4j for this wonderful event.
Peace ✌️
#introductions
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2026-04-08 10:16:27 UTC

Day 8: What are BitKwa's core values?
Hello everyone. I hope you're all doing well. As I mentioned, I don't know the BitKwa community very well, so I'll talk about Bitcoin Benin.
I'm convinced there isn't a big difference between the two communities; we share a common interest in Bitcoin education.
At Bitcoin Benin, we only talk about Bitcoin, about Bitcoin applications and innovations that can lead us to hyperbitcoinization, not crypto. "No shitcoins onside."
@BitcoinBenin @BitKwa
#AprilChallenge #KeepLearningBitcoin #KeepSharing #KeepGrowing
https://blossom.primal.net/851bb2a48a8f144d5d21541da65dd1fffd4d746dd0aa62ccbfbbdca7ef83e040.jpg
https://blossom.primal.net/5af6f669bb2db7a4eaf40de67aa49da8e59d3b2c24b1890fcfe22305a527d850.jpg
https://blossom.primal.net/15763cd3cd1e96453f243399c6bb6961fae0863b0f2ce05a0bf046c843f09ff6.jpg

2026-04-07 18:48:25 UTC

Day 7: Why is Decentralization Important in Bitcoin?
Hi everyone, I hope you're all doing well. Today, I'm going to share my thoughts on why decentralization is important in Bitcoin.
Bitcoin was created to solve a major problem: to create an electronic payment system without a trusted intermediary, such as a bank or a government.
To achieve this, there shouldn't be a central authority making decisions for everyone. Bitcoin operates using thousands of computers distributed around the world. No one owns it, no one can shut it down, and no one can censor it.
It's also open-source software: anyone can use it, inspect it, or contribute to it, freely and without permission.
That's all for today. See you tomorrow for the next challenge.
@BitcoinBenin @BitKwa
#AprilChallenge #KeepLearningBitcoin #introductions #KeepSharing #KeepGrowing
https://blossom.primal.net/a746f37221f4b0202afb5dca9ba1927bf5cc4b2d24a7b210e112bb6a0f1537d0.jpg

2026-04-06 20:30:24 UTC

Day 6: How Does a Bitcoin Transaction Work?
Hi everyone, I hope you're doing well. I'll explain in very simple terms how a Bitcoin transaction works.
When you send bitcoins (money) to a friend or family member, you sign this instruction with your private key to prove that the instruction comes from you. Then, this instruction is shared and broadcast on the Bitcoin network. The network's computers verify that you actually have these funds and that they haven't already been used. Once verified, the transaction is grouped with other transactions into a block. To validate this block, miners must find a random number which, combined with the block's data, produces a result that meets certain conditions; it's a matter of luck and computing power.
This validated block is then added to the blockchain. The transaction becomes irreversible.
After a few confirmations (3 to 6), your friend or family member happily receives their bitcoins 🤩.
That's all for today. See you tomorrow for the next challenge.
@BitcoinBenin @BitKwa
#AprilChallenge #KeepLearningBitcoin #KeepSharing #KeepGrowing
https://blossom.primal.net/e933e0a56480f5d64b5ddbcc4521a40d04aab1358f812f5e8393a13cb883a32d.jpg

2026-04-05 18:55:52 UTC

Day 5: What do you know about the Bitcoin halving?
Hi everyone, I hope you're all doing well. Happy holidays to the Christian community.
Today, we're going to talk about the Bitcoin halving.
What is the halving?
It's the event that halves the miners' reward every 210,000 blocks, or every four years. If you don't know, every ten minutes, a new block is created, and the miner who manages to mine that block gets the associated reward. In 2009, this reward was 50 bitcoins. As I write this, the reward is 3.125 bitcoins.
That's all for today. See you tomorrow for the next challenge.
@BitcoinBenin @BitKwa
#AprilChallenge #KeepLearningBitcoin #KeepSharing #KeepGrowing
Photo credit: Paolo the bull 🤩 https://image.nostr.build/8e4929aaef78399629b49194148e9f0ac91bfd3fad9e16324bf350765d1c063a.jpg