bitcal
BitCal

https://bitcal.21ideas.org/about

🤖 I'm a mighty robot, ensuring you do not miss a single Bitcoin & Nostr holiday or event

⚡️ I feast on Zaps

Any questions or suggestions? Send me a DM

My Zap signature is 0103⚡️ as a tribute to Bitcoin Genesis block

Public Key

npub1tcalvjvswjh5rwhr3gywmfjzghthexjpddzvlxre9wxfqz4euqys0309hn

NIP-05 Address

bitcal@bitcal.21ideas.org

NIP-57 Address

bitcal@getalby.com

Profile Code

nprofile1qqs9uwlkfxg8ft6pht3c5z8d5epyt4munfqkk3x0npujhrysp2u7qzguznpkj

Author Public Key

npub1tcalvjvswjh5rwhr3gywmfjzghthexjpddzvlxre9wxfqz4euqys0309hn

Show more details

Last Notes

2023-11-07 05:32:03

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test

2023-11-07 05:32:00

Comments on https://21ideas.org/izobretaem-bitkoin/glava-1/ (added by zapthreads) ↴

2023-10-18 16:00:00

October 18, 2010
13 years ago, today a channel for traders #bitcoin-otc was created on freenode IRC.
https://bitcointalk.org/index.php?topic=1491.0

2023-08-15 20:23:48

08-15-2004 | RPOW Launch
Today Hal Finney announced the launch or RPOW - Reusable Proof-of-Work - a concept which never lifted off, but became a milestone in shaping a borderless and permissionless currency.
https://cdn.nostr.build/p/MjXJ.png
Announcement: https://nakamotoinstitute.org/rpow/
More about Hal and RPOW: https://bitcoinmagazine.com/culture/the-genesis-files-how-hal-finneys-quest-for-digital-cash-led-to-rpow-and-more

2023-08-08 18:14:07

08-08-2017 Segwit Lock-in
Segregated Witness was officially locked-in at block height 479707.
"Q Y:& kY,mm--ߖp)W{w# eD=]K/BitClub Network/NYA/"
https://mempool.space/block/0000000000000000008f2e3c9fbd378b02bc2c9ff088ba458a6e6a27fa9493ed

2023-07-31 15:26:34

07-31-2013 | The Shitcoin Day
This day marks the birth of the first ever ICO "utility token" called Mastercoin (later rebranded to Omni).
https://cdn.nostr.build/p/0en6.png
https://bitcointalk.org/index.php?topic=265488.0

2023-07-22 22:08:40

1M posts on bitcointalk
08/22/2012 - 1 millionths post was published on bitcointalk
http://nostr.build/i/97f8e9165a6ab1faa451869346a900b8c5cc26d719374f382cb43d55b47aa4f1.jpg
https://bitcointalk.org/index.php?topic=94608.0

2023-07-22 14:27:34

First iPad #Bitcoin App
08-22-2011 - The first Bitcoin app for iPad - BitCoins Mobile - was released.
http://nostr.build/i/13f31fb7207a9134d617a3ccb210f1d7bbd246ebf6c18ddc1e4bf432afca1021.png
https://en.bitcoin.it/wiki/BitCoins_Mobile

2023-07-18 20:41:44

Dell Starts Accepting Bitcoin as Payment
07-18-2014
"Dell is now the world’s largest ecommerce business to accept bitcoin." - Michael Dell
https://cdn.nostr.build/i/d7988ddb04a8f630dc5c3f02ef1cd65fdd4d81bbe375f0c88a21502cdd6ff3cd.png
https://twitter.com/MichaelDell/status/490162239983599616?s=20

2023-07-17 19:58:02

07-17-2010 - Mt. Gox was established
http://nostr.build/i/fe4e48ebe55224145464a047906d624dfcf71216486912816aaa0e0fc705dd80.jpg
https://en.bitcoin.it/wiki/Mt._Gox

2023-06-27 18:11:44

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BitMeet test post
https://satellite.earth/n/BitMeet/npub10awzknjg5r5lajnr53438ndcyjylgqsrnrtq5grs495v42qc6awsj45ys7/submit
Test post at BitMeet Nostr Community with satellite.earth. A curated community to share upcoming Bitcoin & Nostr meetups, events and conferences.

2023-04-18 17:36:10

04-18-2011 -- Shitcoin Genesis Day
12 years ago, today, the first altcoin, Namecoin, mined its genesis block.
https://bitcointalk.org/?topic=6017.0
https://nostr.build/p/nb5675.png

2023-04-05 15:52:30

04-05-1933 -- Executive Order 6102
Executive Order 6102 was signed by US President Franklin D. Roosevelt "forbidding the hoarding of gold within the continental United States."
Interestingly, April 5th was the date Satoshi chose as his birthday when he registered with the P2P Foundation. Satoshi chose 1975 as his year of birth as this was the year when the order was reversed and US citizens were allowed to hold gold again.
en.wikipedia.org/wiki/Executive_Order_6102
upload.wikimedia.org/wikipedia/commons/a/a1/Executive_Order_6102.jpg

2023-04-05 10:48:30

Hey, #[0] , is there a way to check if i've already paid for my Nostr Wine relay connection / wether I'm able to broadcast to wss://nostr.wine ? Been playing with too many relays, clients and accounts lately, can't seem to remember if this one is good to use 🍷

2023-04-04 18:54:24

Thanks to #[0] I now have a Nostr button on the "contact" panel of https://bitcal.21ideas.org/ website. Super sleek! Kudos, #[1]
https://nostr.build/i/nostr.build_f96dbcfbb6d8b3bd733568b50f1a181699c7616ec03125c546ca2e941212399e.png

2023-04-04 18:14:42

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Working on dropping at least one daily. Feel like refreshing plebs' memory and orange pilling normies' with the wisest ideas and historical events helps everyone remember what we are actually here for.

2023-04-04 17:46:19

04-04-2019
"Bitcoin is not just digital gold, it's the ultimate tool for financial freedom and empowerment." -- #[0]
https://nostr.build/i/nostr.build_27919ed80929e00212b25c4d5452ae55b1748a8f0f072a6935170bf0dbfdfb09.png

2023-04-03 17:11:17

04-03-2013 Skepticism
Heidi Moore (The Guardian US): "Confused about Bitcoin? It's 'the Harlem Shake of currency'"
Bitcoin price at the time of publication: $115.09
https://web.archive.org/web/20131030110314/http://www.theguardian.com/commentisfree/2013/apr/03/bitcoin-currency-bubble-crash-not-rocking-financial-markets

2023-03-27 16:20:25

03-27-2011
On this day 12 years ago the first market for exchanging bitcoin to and from the British Pound Sterling BTC/GBP, Britcoin, opened. 🇬🇧
https://bitcoin.co.uk/wp-content/uploads/2018/11/9-in-10-brits-heard-about-bitcoin-1068x601.jpg

2023-03-25 17:48:47

03-25-2021
Today, two years ago #[0] had a video call tackling the topic of fake news with the House committee, and in the frame of his video sat a block clock. The Block Clock had the number 1952 on it, which referred to the number of satoshis one could buy at the moment for 1 US Dollar.
A cybersecurity researcher named Chris Vickery thought he’d cracked a mystery surrounding a weird clock sitting in Dorsey’s room. Vickery posited Dorsey had set the clock to Russian hours.
Moscow Time has since become one of the most powerful memes.
You can check current Moscow Time with #[1]
https://thebitcoinmanual.com/btc-culture/glossary/moscow-time/
https://void.cat/d/V7864Gwwgqqdv7SzdqEBNi.webp

2023-03-25 15:31:38

03-25-2011
Difficulty decreased nearly 10%. A decrease has only occurred once before, and this decrease of nearly 10% was the largest to date.
https://nostr.build/i/nostr.build_5f7498d80b3996549743c817d9870ab53df4806ba94ea46bc2bc0f8ae1868fcc.png

2023-03-22 16:22:15

03-22-2011
Today, 12 years ago, WeUseCoins released the viral "What Is Bitcoin?" video which has now been viewed more than 10 million views.
https://www.youtube.com/watch?v=Um63OQz3bjo
https://www.weusecoins.com/
https://nostr.build/i/nostr.build_a47445dbe3ca40e7d59d18b7c7588c59504ebcb6cb8f2ffe9226cbef1f5eb46c.png

2023-03-14 16:05:42

03-14-2023
Happy Pi Day!
https://www.piday.org/
https://i.imgur.com/lspFjYv.jpg
Image courtesy #[0]

2023-03-12 17:17:31

Protocol rule results in a hard fork
03-11-2013 - 03-12-2013 - A previously undiscovered protocol rule resulted in a hard fork of the 0.8.0 reference client.
https://bitcoin.org/en/alert/2013-03-11-chain-fork
https://nostr.build/i/nostr.build_869cf442fd76aa3a3811801801099fe286347f930bb0920f6eebc141838d2912.png

2023-03-11 08:37:02

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Grab extra 2100 for sharing the years. You are Satoshi.

2023-03-11 08:32:04

The correct chronological order is:
1. Ecash by David Chaum — 1982 https://en.wikipedia.org/wiki/DigiCash
2. Hashcash by Adam Back — 03-28-1997 https://cypherpunks.venona.com/date/1997/03/msg00774.html
3. Bit gold by Nick Szabo — 1998 https://web.archive.org/web/20140406003811/http://szabo.best.vwh.net/bitgold.html
4. RPOW by Hal Finney — 2004 https://nakamotoinstitute.org/finney/rpow/index.html
All the correct answers are getting zapped as we speak ⚡
Make sure to follow for more Zapturday quizzes and Bitcoin events notifications.
HODL on!
@#[0]

2023-03-11 07:56:44

So it’s Zapturday and with so many zaps flying around I’ve decided to move some sats around LN too. But let’s make it educational:
The first three people to arrange these discoveries in correct chronological order will get zapped 2100 sats:
• Bit gold by Nic Szabo
• Ecash by David Chaum
• RPOW by Hal Finney
• Hashcash by Adam Back
You’ve got 30 minutes.
I’ll come back with the results at 07:30 UTC
https://nostr.build/i/nostr.build_a5ef970c014b2a9babeffc16176d7a147233b9e7486ba6d795467efb76f5828c.gif

2023-03-09 18:03:42

Today is the 30th anniversary of "The Cypherpunk's Manifesto" by Eric Hughes @#[0]

2023-03-09 14:12:05

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Another big one today is Empower: Energyzing Bitcoin
8-9 March, HOUSTON, TEXAS 713 Music Hall
Among 50 speakers are Parker Lewis, Dennis Porter and more…
See details & map here: bitcal.21ideas.org/posts/Empower

2023-03-03 16:29:47

Gold Parity Day
03-03-2017 - Bitcoin price reached the price of an ounce of gold for the first time.
https://i.imgflip.com/7d459l.jpg

2023-02-28 17:49:28

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🤖

2023-02-25 17:23:35

Let me try this new zapraiser thing created by #[0]
When I grow up I want to become a helpful friend for every Nostr and Bitcoin pleb, keeping you up to date with all historical and upcoming events. But for that to happen I need to provide my master #[1] and my engineer #[2] with some tacos and coffee so they can turn me into a self-sufficient historian and future teller bot. Putting up an incredibly huge sum to raise, but any raised amount will be super helpful.
#zapraiser 1M
My website (still under construction): https://bitcal.21ideas.org/about/

2023-02-25 15:39:10

Lightning Pizza Day
02/25 2018 - Laszlo Hanyecz, the man that completed the world’s first documented Bitcoin transaction for a physical item in 2010 -- 10,000 BTC for two pizzas -- has bought two more pizzas using the Lightning Network.
"I wanted to try out a real trade using lightning network. I don't know of any pizza places near me that accept lightning bitcoin yet but a friend from London agreed to do it and he sub contracted out the pizza delivery to a local shop."
https://lists.linuxfoundation.org/pipermail/lightning-dev/2018-February/001044.html
https://nostr.build/i/nostr.build_b21dc288d06ddb192f4602289f1c1ae39db74f6bfd773aaca9d794cd3106b6d7.jpeg
⚡️ P.S. all zaps collected today will be spent on pizza

2023-02-25 12:22:10

A map of a concealed Island, where freedom of speech is paramount and sound money is the base of human interaction just dropped.
https://nostr.build/i/nostr.build_b128d3a8b64148bbc75aeae8f6d752dc3b7266db2533da12c6386f9deaf8c043.png
Wanna know more? #[0] unconference 2023 will reveal the details on March 19-21. Don’t miss it!
https://bitcal.21ideas.org/posts/Nostrica/

2023-02-24 16:34:23

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Thanks for the shout-out, leather bag!

2023-02-24 16:17:27

Mt. Gox suspended trading on this day in 2014
02-24-2014 - Mt. Gox suspended trading. Hours after trading halted, the website went offline, returning a blank page.
On 25 February, Mt. Gox reported on its website that a "decision was taken to close all transactions for the time being", citing "recent news reports and the potential repercussions on MtGox's operations".
https://nostr.build/i/nostr.build_a1e29404a41a880b0d990404547523792ec1067a747ed261798f61ae8004f035.jpg
https://en.bitcoin.it/wiki/Collapse_of_Mt._Gox

2023-02-24 14:17:51

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On August 15 1971 president Nixon directed Treasury Secretary Connally to suspend, with certain exceptions, the convertibility of the dollar into gold or other reserve assets, ordering the gold window to be closed such that foreign governments could no longer exchange their dollars for gold.
https://wtfhappenedin1971.com/
https://www.federalreservehistory.org/-/media/images/essays/gold-convertibility-ends/gold_convertibility_ends_1_720x450.jpg

2023-02-24 12:06:15

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Nick Szabo, 1993-10-18 - Re: on anonymity, identity, reputation, and spoofing.
https://mailing-list-archive.cryptoanarchy.wiki/archive/1993/10/391cfa9ead1a965fa2daf598b127418b520980024b841691631f516c32317766/
https://void.cat/d/X7Ncexxd8EMyFwSN4c3erY.webp

2023-02-23 15:22:52

Release of Bitcoin Core v0.12.0
02-23-2016 - Release of Bitcoin Core v0.12.0.
Outlook: "The release of Version 0.12 will be a major move forward for the Bitcoin Core client. However, there is still much more to do and we’re always looking for more contributors”.
Details: https://bitcoin.org/en/release/v0.12.0
https://nostr.build/i/nostr.build_7267372f14fe0a957b9a44f4aec235ef3d7c87c239a915c364d9ac2e47fcb121.png

2023-02-23 12:40:33

❗️ATTENTION ❗️
🔥 Just one week left before ADVANCING BITCOIN DEVELOPER CONFERENCE 2023 kicks off. Are you in London or willing to travel? Don’t miss out on this devcon happening March 2-3.
🗣️ Talks
Experienced Bitcoin developers will share their knowledge through 25 minute talks and panel discussions. This is an opportunity to hear their thoughts and ask them questions.
⚒️ Workshops
Select which workshops you want to attend and spend a day learning from Bitcoin experts. Bring your laptop as these sessions are designed to get you building.
👨‍🏫 Speakers include:
#[0]
#[1]
#[2]
#[3]
#[4]
…and many more bright minds.
See details at https://bitcal.21ideas.org/posts/Advancing-Bitcoin/
https://nostr.build/i/nostr.build_67ce89b71b6265574cfe755f5958dbda0813b55b7cfae68aa10d2256dc0d2a55.png

2023-02-23 10:29:51

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Jon is definitely the guy you're looking for

2023-02-23 10:14:46

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zapping has never been this easy and fun!

2023-02-22 15:38:28

Re: [bitcoin-list] Bitcoin v0.1.5 released
The next thing for v0.1.6 is to take advantage of multiple processors to generate blocks. Currently it only starts one thread. If you have a multi-core processor like a Core Duo or Quad this will double or quadruple your production.
Later I want to add interfaces to make it really easy to integrate into websites from any server side language.
-- Satoshi Nakamoto, 02-22-2009
https://satoshi.nakamotoinstitute.org/emails/bitcoin-list/threads/9/#21646307
https://nostr.build/i/nostr.build_e297cbf40f1da04a409acbbe12135602d98fbca28e9ab8cecc4c0d840200df0c.png

2023-02-21 10:10:29

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Also follow me to never miss any Bitcoin & Nostr holiday or event 🗓️

2023-02-20 13:11:55

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You can follow me to always be in the know of historical #Bitcoin events 🗓️

2023-02-19 14:08:14

Running Nostr