Kate ≐

「初めてのビットコイン入門コース🔰」無料のオンライン講座をスタートしました 🎉
📅 4月26日（日）10:00〜11:30
📅 5月2日（土）10:00〜11:30
日本時間です
各回先着10名様
My First Bitcoin @npub17cy…4ml3 の教材を使います。ビットコインを教えるのに興味ある方もウェルカムです♪
詳細・お申し込みはこちら👇
bit.ly/4s0OSD0

2026-03-25 18:26:34 CET

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Perfect! Thank you 😊

2026-03-25 07:12:39 CET

Hi @npub17cy…4ml3 !
I’m planning to teach MFB “Introduction to Bitcoin” course in Japanese.
I have translated the intro slides now and wonder if I could share it with your team :) Who may I contact about this?

2026-01-03 17:13:31 CET

富士山を見に行った1日目と2日目🙂
https://image.nostr.build/8dccc3f622a6636febda493ccc13ee411b40981d1b3e332f53390d742110545d.jpg
https://image.nostr.build/a964688f8322020bb180e0fec040579e5dad063089eba91ef532ab2a6d83c16a.jpg

2026-01-03 16:51:37 CET

アマゾンで売り切れかもだけど、この本はすぐ読めて面白かったです
https://www.amazon.co.jp/dp/4910467149

2026-01-03 16:48:28 CET

長い滞在は12年ぶりなので、日本の日常が楽しい😊
https://image.nostr.build/d82a58acaa15713107a4636816edec3624e7adb6df4d8a357065fd2b0306a315.jpg
https://image.nostr.build/6eeb2fa8e58280f446da8d76ded8f8dd3bc205878250daa531cbe417570bffe1.jpg
https://image.nostr.build/6be4897962c58c3777f28ab31e41de6e41970a3d9db97b1c0aea148f8c349958.jpg
https://image.nostr.build/357a74200af37efceaeaf5966bf13d83f6b97eedbd2da4b6ddb6a6f8222b4590.jpg

2025-12-03 13:06:53 CET

12月16日（火）12〜15時に東京ビットコインベースにて、ランチミートアップを開催します！平日ですが、時間が自由な方、どうぞお気軽にご参加ください🧡 BitcoinOGの参加もあり、楽しい会になりそうです。#ビットコイン
https://luma.com/9uqvegba

2025-11-13 01:38:40 CET

Earthquakes have increased recently in northeastern Japan. If visiting Tokyo or northern Japan in mid-to-late November, be aware of possible earthquakes and know what to do in an emergency, just in case. Hope nothing serious happens!
https://x.com/newearthquake

2025-11-12 02:57:14 CET

ブログ記事を投稿しました！
日本でビットコイン開発や業界に興味ある方はぜひチェックを🫶
ビットコイン特化の国際テックカンファレンス: BUIDL@Tokyo Bitcoin Base ⚡️(11月23日）
https://spotlight.soy/detail?article_id=its4kpgbd

2025-11-10 07:50:01 CET

11月23日にビットコインの技術系カンファレンス、BUIDL@Tokyo Bitcoin Base: ジェネシスブロックが開催されます。私もイベントのお手伝いで会場に行きます😄
チケット発売中🎫(70000 sats)。ビットコインの最先端、特に技術面に興味ある方はぜひご参加ください！
東京で、つながる、語る、つくる — ビットコインの未来
https://btc-jpn.com/buidl

2025-10-24 05:05:18 CEST

ここにはトレードする人はあまりいないと思いますが、注意喚起としてブログ記事を投稿しました！
Uptober? Downtober?📈📉暗号資産トレードのリスク
https://katebtc.substack.com/p/uptober-downtober

2025-10-22 07:21:58 CEST

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It’s likely raining here tomorrow, so I’d miss it🥲

2025-10-22 02:55:19 CEST

We might be able to see the comet tomorrow 👀
Comet Lemmon (C/2025 A6)🌠
- On October 22, it’s predicted to lie about 10° above the star Arcturus in the west-northwest sky around 7:30 p.m. local time.

2025-10-22 02:41:55 CEST

Lovely maple tree 😍
https://image.nostr.build/0d5cbe361c8dfb778e91c5eed1b078ddf9edbeae8aa7e11951b768bed855c912.jpg

2025-10-20 23:46:36 CEST

なぜ人は #ビットコインに夢中になるのか
ビットコインに心を動かされた10人のストーリーを紹介する記事を書きました。
よかったら読んでみてください😊
https://spotlight.soy/detail?article_id=cle1q4u0k

2025-10-09 07:03:12 CEST

子を少しでも運動させるため夜の散歩行ったら、いい感じの写真撮れた😌
https://image.nostr.build/a128b42e8e380587ce29e85cadb282a307639620962673f868dd4d8acadb40f0.jpg

2025-10-09 03:56:44 CEST

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Yes, it’s a great place 🥰

2025-10-09 03:15:12 CEST

I don’t have a boat but enjoy sipping coffee☕️ at the marina☺️
https://image.nostr.build/54dc65e59e16a4e996684fa3d89202237c6a87aaad0206246d5105c865d85fbe.jpg

2025-10-06 21:16:14 CEST

So nice to go to the beach on Monday morning 🥰☕️
https://image.nostr.build/b779bf15811a3c2a4bb303a7509e7827543d564e4a513a9445086e4027f1cbfe.jpg

2025-10-05 21:31:19 CEST

Lovely ocean view ☀️
https://image.nostr.build/5f00d6357f20cc15705404dd5a2fcbdcb707ab2097a8d69fdf072376366b769d.jpg

2025-09-08 08:53:48 CEST

Satori Coin is a serious collector’s item☺️
https://x.com/satoricoin/status/1960839230730723454

2025-09-08 08:49:47 CEST

Excellent proof of work🧡
https://x.com/satoricoin/status/1964776266558504980

2025-09-08 04:20:53 CEST

ブログ記事を投稿しました。
💸GENIUS ACTはドル延命の“天才的金融ハック”🔥
✅ビットコインとステーブルコインの違い
✅なぜステーブルコインが役立つのか
✅ GENIUS ACTは天才的な金融ハック
✅日本円ステーブルコインJPYC
✅経済への影響は？
https://open.substack.com/pub/katebtc/p/genius-act
#bitcoin #stablecoin

2025-09-05 05:38:47 CEST

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Thank you for your generous ⚡️

2025-09-05 03:12:18 CEST

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I listen to many Bitcoin podcasts, but this episode is truly a gem 💎😊

2025-09-04 23:58:35 CEST

I found an amazing podcast that touched my soul today💜 Thank you @npub1u4l…2gwh
If you support hypercoinization, I highly recommend watching it.
I’m opting out of the fiat workplace soon, with endless future possibilities😊
https://youtu.be/YiGfdfr-C-g

2025-08-25 01:07:47 CEST

Spam calls and SNS messages annoy billions of people🙄
Can someone invent a system to charge unknown callers/spammers a small fee using a digital wallet directly linked to a phone number?
It would be nice to earn sats automatically that way, for instance😂 Wouldn't it be cool if Zap⚡️ technology could prevent spam?
We need a real solution for spam…

2025-08-22 17:37:34 CEST

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I didn’t know about this guy until yesterday lol He showed up in a Japanese business channel 🫡 Bitcoin is the fix for many points he’s talking in the show! It’s such an irony 😂

2025-08-22 09:10:27 CEST

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Gary wants to address financial inequity, broken societies, family struggles, etc. which can be fixed by Bitcoin adoption. But sadly, he’s fiat mindset is so strong, preventing him from viewing Bitcoin in a healthy way lol

2025-08-22 08:53:41 CEST

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He’s a Bitcoin hater 😂

2025-08-22 08:52:38 CEST

I wish someone could orange-pill this rich man! I think he needs one "aha" moment to get it, right?
https://youtu.be/VlvoNgUi8EU

2025-08-18 23:55:25 CEST

😍
#note1nk8…qffu

2025-08-18 23:20:54 CEST

Fantastic to find a med team on #Nostr 💜
#note14at…7jkw

2025-08-18 20:42:06 CEST

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Bitcoin mining is a fascinating topic! I hope more people explore it.

2025-08-18 20:39:36 CEST

The dream of creating a perfect energy world - Leveraging Bitcoin Mining ⛏️
Security in Japan, Circular Economies, and Peaceful Societies.
https://youtu.be/1BGFBAYWnzU

2025-08-18 20:22:45 CEST

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Thanks @npub1xts…kk5s. If there’s a chance, I could be a volunteer in workshop ☺️

2025-08-18 20:20:13 CEST

Bitcoin mining, combined with other technologies, could address some energy issues, grid balancing, and environmental impacts of human activities🌳
Kenji Tateiwa, President of Agile Energy, shares innovative ideas on the podcast (English)👇
Notably, Tateiwa’s background is in nuclear engineering.
https://youtu.be/qHL3ytRBTMM

2025-08-18 08:58:29 CEST

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Indeed! Great to meet you in person 🧡

2025-08-17 23:30:02 CEST

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Hi!

2025-08-17 23:14:18 CEST

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Hi ☺️

2025-08-17 23:01:30 CEST

Attending #LearningBitcoin in #Vancouver 😀
https://image.nostr.build/894033ddf0c16caec1af8ce5a53b13ddbe9c7070d1c2e39372b3bddffe7abc32.jpg

2025-08-05 00:09:13 CEST

7月の東京訪問や最近のビットコインニュースなど投稿しました📝
TBBと貨幣博物館に行ってきました！
ビットコインから知る世界（17）
https://open.substack.com/pub/katebtc/p/tbb

2025-08-03 16:39:14 CEST

東京の豪徳寺。今や観光名所になってる☺️
https://image.nostr.build/7a8bfee224438120c0f89eb17b6b84abd7c400cd536ad4ab8991aa9a9a9ab935.jpg

2025-04-20 21:33:52 CEST

Great to hear about an exciting pilot project to reduce methane gas emission in a remote area of Hokkaido🇯🇵🧡
Tateiwa Kenji | Antifragile Energy Security in Japan, Circular Economies... youtu.be/1BGFBAYWnzU

2025-04-17 16:15:24 CEST

Gm. I got up early this morning and saw the beautiful sunrise 🧡
https://image.nostr.build/978022293a9afb17adcafd66a43666d1ec772b7cfb07957054bcf1521e583d13.jpg

2025-01-20 02:11:57 CET

I want a new phone with 4k camera! https://image.nostr.build/37b51a3b51f5c7ea3450d88e73b88885b9960d349fdaf51e9afb6cf211aac780.jpg

2025-01-11 18:27:18 CET

Good morning 🙂 https://image.nostr.build/357e2a4e84ed7274a45674478865b4219c3707951f39bcbb4647343615a6473c.jpg

2024-12-25 18:14:37 CET

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Cheers 🥂🧡🎄

2024-12-25 18:09:49 CET

Merry Christmas to you & your family🎄hope you all have a happy and peaceful day ✨
I still believe in the importance of self-custody of Bitcoin, even though i had made a bad decision and moved my coins at my will wrongly, ended up a hard lesson ⬇️ One day my lost coins will circulate back to me somehow 🧡 I choose to be optimistic and happy😊
I hope our world becomes healthier with the hard money, and honest hard working people will be rewarded more as they deserve! #note1nu3…r05t

2024-12-19 16:30:03 CET

Gm wonderful freedom tech people 💜
I’ve got a story about being “PIG BUTCHERED” to share with you. It’s my real experience happened since this November and am still dealing it with now.
⚠️I am about to lose $150k worth of bitcoin in online scam on Christmas Day🤦‍♀️🎄
Bitcoin is fine. It never betrays us. It doesn’t disappoint us. The biggest security holes are human errors. I betrayed myself, breaching my investment philosophy. I hope this story to be shared far and wide for educational purpose.
The exchange site has changed its URL three times in a month. They try to charge me a hefty withdrawal fee. Hope this scammy operation will be busted soon.
https://katebtc.substack.com/p/10

2024-12-15 18:34:55 CET

The same beach this morning 🤗 https://image.nostr.build/8849b43a823002604f28367dce05529628f3e37d0c328ac01a696c33ab4d5c88.jpg #note1w2x…6907

2024-12-14 20:05:02 CET

Stormy beach this morning 🌊 https://image.nostr.build/02371835d70dd0999c6bd9b86898044799c47852647e47289110c63cf4526156.jpg

2024-11-27 14:57:48 CET

Gm💕 I’m waking up too early these days 🥱 https://image.nostr.build/4a4887e65a37056eded91ebdd48bdffc2aae4270271816255267ac62c29153b8.jpg

2024-10-14 05:45:46 CEST

ちょっと時間が空いてしまいましたが、#BitcoinTokyo2024 を振り返ってみました！
今後さらに人同士のネットワークが広がるといいなと思いました🙂
https://open.substack.com/pub/katebtc/p/5

2024-10-12 07:26:06 CEST

昨夜うちの近くから見えたオーロラ、けっこうすごかった✨ https://image.nostr.build/4713421e678beedc85aa2ef2fb146ad2367df7c8d8baafedf948da24fdf9ec38.jpg https://image.nostr.build/114503dbb483bf9777526783d3704e3f0e0b3eba5d625aa02672126e1a686317.jpg

2024-09-09 06:36:24 CEST

日本行ったらSUPサーフィンにチャレンジしたい。あんまりSUPで海行ったことないのに無謀かな🙂天気を見て決めよう

2024-04-19 05:26:02 CEST

My son, 12, uses his bitcoin (LN) allowance to buy domains😌 Somehow, he’s into running servers…

2024-03-04 04:32:11 CET

I translate and write short articles on Bitcoin for a Japanese newsletter, so I am thinking about it pretty much everyday 🫡
Going into a rabbit hole 🐇, do you think about Bitcoin everyday!?
My brain🧠 needs a vacation🏝️

2023-12-21 07:05:00 CET

Xから同じく来てみた

2023-08-08 02:39:08 CEST

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カナダの西海岸も避暑にはおすすめです！最高気温で22-25℃くらい😄朝晩は日本の半分の気温。田舎ですけど、なぜか家賃は高め。。

2023-08-06 06:09:08 CEST

On my first open water SUP, I saw an eagle 🦅 on the shore! https://cdn.nostr.build/i/3a28a9ebfc1794ad3ac885f830e1ed06a97b5bb6645134f8fbd0f573c3faf350.jpg

2023-08-02 16:54:54 CEST

My kiddo, 11, cannot stop coding (JavaScript for Minecraft) on his pc. If I don’t force him to stop he could keep doing over 12 hrs 🤯Troubling for me as a parent but should i let him?? He is unable to stop what he’s doing! Now he’s skills are amazing but…

2023-08-02 16:39:25 CEST

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Gm 😄

2023-07-27 02:31:38 CEST

時代はNostrとビットコインをプッシュしてるように思えます💜でもBsky行く人も多いのかな。

2023-07-18 02:46:09 CEST

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Wishing you a speedy recovery! Please take good care🧡

2023-07-08 10:38:57 CEST

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I learned in an old way and got 1 for the answer. How you apply rules seems different by generations/regions!
= 8 / (2 * (2+2))
= 8 / (2 * 4)
= 8 / 8
= 1

2023-06-30 00:06:07 CEST

Looks like I just missed #zapathon 🥹 But that’s okay! My kid has graduated from the elementary school today🥳 Bye 🏫 until September!

2023-03-14 21:34:04 CET

My kid hasn’t been able to go to school this week. Unfortunately, the school is not good fit for him.
So, I took a day off from work, and now am finally installing Umbrel to a Raspberry Pi. See how it goes!

2023-02-18 16:50:43 CET

Gm ☕️☁️
Yay, this is a long weekend 😄🥳

2022-12-27 01:32:18 CET

This afternoon I delivered “The Bitcoin Standard” book to a non coiner friend who was just about to explore Bitcoin & Cryptocurrencies. Now she knows Bitcoin and other cryptos are different ☺️