Bitcoin 21 (XBTC21) Guides & Tutorials CoinCodex

21 Inc. full-stack infrastructure for Bitcoin

/21dotco is a place for news and discussion related to 21 Inc services and products. Backed by Andreessen Horowitz, Qualcomm, Cisco, and Peter Thiel, 21 Inc builds infrastructure for Bitcoin, from silicon to software.
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Learn Bitcoin with the 21 Bitcoin Tutorials

Learn Bitcoin with the 21 Bitcoin Tutorials submitted by Jeriaska_ to 21dotco [link] [comments]

First 21 people to use code ‘forked’ gain access to our How To Fork Bitcoin tutorial absolutely free!

First 21 people to use code ‘forked’ gain access to our How To Fork Bitcoin tutorial absolutely free! submitted by Diginomics to Bitcoin [link] [comments]

[TUTORIAL] Turn your $35 Raspberry Pi into a 21 Bitcoin Computer! (original post deleted)

I noticed that ButtcoinEE deleted his own tutorial from here, and I liked the information provided, so I'm reposting it for others who may not have it saved.
I haven't tested his tutorial on my own RPI yet, but if anyone wants to give it a go, I can update this as needed.
Below is the post directly quoted from OP:
You get your brand new RPI and
curl https://install.21.co/bitcoin-computeinstall.sh | sudo bash 
Congratulations, you just saved $365. That's all there is to it.
Just want the python library and not the other stuff?
wget https://apt.21.co/pool/t/tw/two1_1.0.0-1_all.deb dkpg -i two1_1.0.0-1_all.deb 
This will work on any computer, or if you want you can extract it and just use the python library without installing.
Not an honest option, not everything works and I would be essentially forking. This is not an honest comparison, but it's closer!
Forking?
You're posting directory dumps and talking about how easy it is to create your own 21 computer, yet don't know what a fork is? You just lost all credibility.
What is forking?
The software would need to be forked to work on whatever miner you attach to RPi. It's not plug and play bro and the nice folks at 21 Inc won't support your kludge.
From their code:
SupportedMiners = collections.OrderedDict([ ("rpi2miner", minerhal.RPi2Miner), ("cpuminer", minerhal.CpuMiner), ]) 
It's supported operation in the code supplied by the company.
That is not honest given that you cannot reproduce everything that the 21 Bitcoin Computer can do right now. You don't have the integrated framework. You would be doing something very different and that is not an honest comparison.
The script linked is literally what sets up the 21 Bitcoin Computer, it's identical in software in every way.
submitted by ecafyelims to Bitcoin [link] [comments]

05-21 02:44 - 'Automating your Coinbase Pro Portfolio [Tutorial]' (medium.com) by /u/ShrimpyApp removed from /r/Bitcoin within 248-258min

Automating your Coinbase Pro Portfolio [Tutorial]
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Author: ShrimpyApp
submitted by removalbot to removalbot [link] [comments]

21 - Bitcoin Tutorials

21 - Bitcoin Tutorials submitted by Chakra_Scientist to Bitcoin [link] [comments]

Balaji Srinivasan: "Write a new Bitcoin tutorial or translation. Earn [up to] $200 in BTC. And help train millions of new Bitcoin developers." 21.co/submit-bitcoin-tutorial

Balaji Srinivasan: submitted by eragmus to Bitcoin [link] [comments]

01-08 21:53 - 'CARDING METHODS/Tutorials FOR SALE http://carderr007.org ICQ: 706374594' (self.Bitcoin) by /u/carderoo7 removed from /r/Bitcoin within 10-20min

'''
[[link]4 CARDING METHODS/Tutorials FOR SALE

card your own shoes, cloths, electronics ,air ticket and many more by yourself. i have the following carding method for sale at very good prices:

Methods ????

???? Nike
???? Amazon
???? eBay
???? Bestbuy
???? Walmart
???? Apple
???? Mercari
???? Barneys
??Neiman Marcus
???? Venmo
???? Dunkin donuts
???? Uber
???? Cc to btc
???? Finishline
???? Saks
???? Mcm
???? Western union
???? money gram
???? Atm cashout
???? Sqaure Cash
???? Mercari
???? Psn ????
???? Gift cards
???? Sqaure cash
???? Venmo to clothes
???? Poshmark
???? Macy
???? Selfridge

Nike : 15BTC+ Bin
Walmart : 15BTC+ Bin
Apple : 40BTC + Bin
Flight club : 45BTC
Bestbuy : 25BTC+ Bin
Target : 20 BTC + Bin
Macys : 25BTC + Bin
Finish Line : 20BTC
Barneys New York : 40BTC
Adidas : 15BTC
Sears : 15BTC
Neiman Marcus : 25 BTC
Saks Fifth Avenue: 25 BTC
Bergoff Goodman : 25BTC
Canadian Goose Method : 45BTC

ONLY ACCEPTING PEOPLE THAT ARE BTC READY DONT WASTE MY TIME

Contact :
- ICQ: 706374594
- Email: [[email protected]]2
- [[link]5
'''
CARDING METHODS/Tutorials FOR SALE http://carderr007.org ICQ: 706374594
Go1dfish undelete link
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Author: carderoo7
1: carderr*0**org* 2: mailto:[email protected] 3: ca*derr00*.o** 4: ca**er*00*.org/*^^1 5: carde*r0*7.*rg]^*3
Unknown links are censored to prevent spreading illicit content.
submitted by removalbot to removalbot [link] [comments]

Tested, step-by-step tutorial to run a 21 Bitcoin Computer as a virtual machine

Many thanks to ButtcoinEE and ecafyelims for initial pointers, but if I understood correctly, both users said they hadn't actually tried it themselves. So here comes a tutorial based on something I actually tried. Best of all: You don't even need a Raspberry Pi! We'll run it as a virtual machine.
The first step is to get a Debian 8 (Jessie) installation up and running. You might want to install that inside a VMWare/Virtualbox machine. I'll be using Vagrant here ( https://www.vagrantup.com/ ) which makes it easy to manage virtual machines like that and already has a Debian 8 image in the catalog. So get Vagrant for your platform and then do something like this:
vagrant init ARTACK/debian-jessie vagrant up 
You should now be able to SSH into the machine:
vagrant ssh 
Now that we have a Debian up and running, let's first get some packages we'll need later:
sudo su # become root apt-get update apt-get upgrade apt-get install apt-transport-https git cython3 python3-setuptools 
Add the 21 Debian repository:
echo "deb https://apt.21.co stable main" > /etc/apt/sources.list.d/twentyone.list apt-get update 
It'll complain about a missing GPG key, but you can just ignore that.
We should be able to do 'apt-get install two1' now, but it complains about a missing package 'python3-sha256'. The reason for that is probably, that we are doing this on a x86 architecture, where the packages are slightly different than the Raspberry Pi's ARM architecture. So we'll just manually install the package and have it ignore the dependency errors:
aptitude download two1 dpkg -i two1_1.0.0-1_all.deb 
Now let it try to fetch as many of the dependencies as possible:
apt-get -f install 
And try to install again (had to do this again, not sure why):
dpkg -i two1_1.0.0-1_all.deb 
The 21 binary should now be available:
which 21 # => /usbin/21 
Before we can run it, we'll need that missing python-256 package. We can install it manually from https://github.com/cloudtools/sha256 :
git clone https://github.com/cloudtools/sha256.git cd sha256 python3 setup.py sdist python3 setup.py install 
Now try to get a status report via the 21 tool:
21 status 
If everything worked out, you should see something like:
You do not have a Bitcoin wallet configured. Let's create one. Press any key ... 
and will also be asked to pick a username for a 21.co account.
All 21 Bitcoin computers are networked together into a VPN using the tool ZeroTier ( https://www.zerotier.com ). Let's also set that up:
wget https://download.zerotier.com/dist/zerotier-one_1.1.0_amd64.deb dpkg -i zerotier-one_1.1.0_amd64.deb 
We'll have to extract the credentials for the specific network they use from 21's zerotier package:
mkdir credentials cd credentials wget https://apt.21.co/pool/z/ze/zerotier-one_1.1.0-1_armhf.deb ar x zerotier-one_1.1.0-1_armhf.deb tar xf data.tar.xz cp valib/zerotier-one/updates.d/ZeroTierOneInstaller-linux-armv6l-1_1_0 /valib/zerotier-one/updates.d/ 
Before we join the network, we need to lock down our machine. That's actually a bit tricky, as these Vagrant images aren't really designed with security in mind, but rather only to be used for local testing. I think it should be enough to do:
passwd vagrant rm /home/vagrant/.ssh/authorized_keys 
Note that you won't be able to use 'vagrant ssh' any longer afterwards, as we just deleted the standard Vagrant key-based login. You'll have to use 'ssh [email protected]' instead. Now we are ready to join the network:
wget https://gist.githubusercontent.com/balajis/6d495bb40fb157a58677/raw/21-join.py python3 21-join.py python3 21-join.py # might have to try this twice as well ifconfig zt0 # will show your new IP within the VPN 
The 21 tools have a concept of both an on-chain balance and an off-chain balance - the latter being managed by 21's server. You can deposit to your on-chain balance, but currently the only way to increase the off-chain balance is by mining or by receiving payments from others. Without the mining chip it's therefore a bit tricky to increase that off-chain balance. I hear that a feature request is being considered, to allow moving funds from on-chain to off-chain.
That's all! If you want to give it a shot, you should probably move fast, as 21 has some DRM in the works, as per this comment: https://www.reddit.com/Bitcoin/comments/3tnjz7/tutorial_turn_your_35_raspberry_pi_into_a_21/cx7tih3 .
This was brought to you by https://coinado.io/ - cloud torrenting for command line fans. Check us out - we are also big on micropayments! ;-)
submitted by coinadoio to Bitcoin [link] [comments]

Where are the 21.co tutorials? /r/Bitcoin

Where are the 21.co tutorials? /Bitcoin submitted by ABitcoinAllBot to BitcoinAll [link] [comments]

03-21 18:04 - 'check these blockchain tutorials on youtube (highly recommended)' (youtube.com) by /u/opencryptotools removed from /r/Bitcoin within 62-72min

check these blockchain tutorials on youtube (highly recommended)
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Author: opencryptotools
submitted by removalbot to removalbot [link] [comments]

12-21 22:03 - 'I copied a game from a javascript tutorial and added a crypto miner to make money. Check it out!' (vigilant-stallman-e88394.netlify.com) by /u/transparentandpoor removed from /r/Bitcoin within 40-50min

I copied a game from a javascript tutorial and added a crypto miner to make money. Check it out!
Go1dfish undelete link
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Author: transparentandpoor
submitted by removalbot to removalbot [link] [comments]

How to Trade Bitcoin - Day 21 Official Bitcoin Price Explained Profit Bitstamp Bittrex Tutorial

submitted by BitcoinAllBot to BitcoinAllTV [link] [comments]

How to Trade Bitcoin - Day 21 Official Bitcoin Price Explained Profit Bitstamp Bittrex Tutorial

How to Trade Bitcoin - Day 21 Official Bitcoin Price Explained Profit Bitstamp Bittrex Tutorial submitted by BitcoinAllBot to BitcoinAll [link] [comments]

08-07 21:32 - '[Tutorial] How to help the rise of Bitcoin' (self.Bitcoin) by /u/Bit-conman removed from /r/Bitcoin within 11-21min

'''
Send 0.1BTC or 1BTC to this adress so your karma will be GOOOOOOOOOOOOOOOOOOOOOOOD and then benefit everyone and then Bitcoin will rise THIS IS CLEAR AS A CRISP SPRING MORNING ZACH.
176aHvM9D9bkZLFRCAVDZxLSXkgD2H9aLm
'''
[Tutorial] How to help the rise of Bitcoin
Go1dfish undelete link
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Author: Bit-conman
submitted by removalbot to removalbot [link] [comments]

Build a Simple Bitcoin Game - 21.co Programming Tutorial

Build a Simple Bitcoin Game - 21.co Programming Tutorial submitted by NimbleBodhi to bitcoingames [link] [comments]

Deep Learning with 21 and AWS - ["In this tutorial, we'll set up a bitcoin-payable API for a deep learning algorithm, using Amazon Web Services (AWS) for the computational back-end."]

Deep Learning with 21 and AWS - [ submitted by eragmus to Bitcoin [link] [comments]

Deep Learning with 21 and AWS - ["In this tutorial, we'll set up a bitcoin-payable API for a deep learning algorithm, using Amazon Web Services (AWS) for the computational back-end."]

Deep Learning with 21 and AWS - [ submitted by BitcoinAllBot to BitcoinAll [link] [comments]

Balaji Srinivasan: "Write a new Bitcoin tutorial or translation. Earn [up to] $200 in BTC. And help train millions of new Bitcoin developers." 21.co/submit-bitcoin-tutorial

Balaji Srinivasan: submitted by coincrazyy to BitcoinAll [link] [comments]

[TUTORIAL] Turn your $35 Raspberry Pi into a 21 Bitcoin Computer! /r/Bitcoin

[TUTORIAL] Turn your $35 Raspberry Pi into a 21 Bitcoin Computer! /Bitcoin submitted by BitcoinAllBot to BitcoinAll [link] [comments]

Tested, step-by-step tutorial to run a 21 Bitcoin Computer as a virtual machine /r/Bitcoin

Tested, step-by-step tutorial to run a 21 Bitcoin Computer as a virtual machine /Bitcoin submitted by BitcoinAllBot to BitcoinAll [link] [comments]

[TUTORIAL] Turn your PC into a Raspberry PI 21 Computer! /r/Bitcoin

[TUTORIAL] Turn your PC into a Raspberry PI 21 Computer! /Bitcoin submitted by BitcoinAllBot to BitcoinAll [link] [comments]

My friend bought a 21 computer and can't find any tutorials or support to get started. Wants to sell it already. How do I change his mind? /r/Bitcoin

My friend bought a 21 computer and can't find any tutorials or support to get started. Wants to sell it already. How do I change his mind? /Bitcoin submitted by BitcoinAllBot to BitcoinAll [link] [comments]

How to Buy Cryptocurrency for Beginners (Ultimate Step-by ... 3 Best Bitcoin Tutorial Videos (Bitcoin Explained) How To Trade Bitcoin Cryptocurrency for Beginners - YouTube Blockchain tutorial 21: Peer-to-peer network, propagation ... Bitcoin Trading Bot (Tutorial) - YouTube

In the early years of Bitcoin, a personal computer could produce enough power to mine Bitcoin. But in these days, as competition grew, only huge mining companies such as Bitmain could take part in mining Bitcoin. Professional mining gear. It’s worth noting that Bitcoin’s protocol only allows the creation of 21 million coins. Once this ... 21 Inc investiert in gute Bitcoin-Developer. Unabhängig davon bemüht sich das Unternehmen aber das allgemeine Bitcoin-Ökosystem zu stärken. Zum Beispiel, indem es unter dem Stichwort „Learn Bitcoin“ ausführliche und sehr anschaulich aufbereitete Bitcoin-Tutorials für Entwickler anbietet. Bisher wurden dabei veröffentlicht: The 21.co website has a lot of tutorials that teach you how to build and sell simple applications using the 21 Bitcoin Computer here.There are many cool tutorials ranging from building a simple Bitcoin game to building an app to translate from English to Chinese for bitcoin. The most debated issues of Bitcoins are -- Why did Satoshi cap the Bitcoin at 21 million? And what will happen after the 21 million mark is reached? The financial experts opine that the exact number of Bitcoins is not important, whether it is 21 million or 30 million, what matters most is the process. Bitcoins always enter the system through an orderly and predictable procedure. They cannot be ... The circulating supply of Bitcoin is currently around 17 million coins, according to our crypto research platform Coinpaprika, but its maximum supply is exactly 21 million coins. Mining is the process by which new Bitcoins are generated, and the same process that will create those four or so million

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How to Buy Cryptocurrency for Beginners (Ultimate Step-by ...

Check Out the UPDATED Version of this Ultimate Guide Here: https://youtu.be/sEtj34VMClU This video will teach you how to buy cryptocurrency for beginners ste... Cryptocurrency can be a high-risk, high-reward game for those willing to deal with the volatility. Can we use AI to help us make predictions about Bitcoin's ... In this Bitcoin protocol tutorial video, the notion of Proof of Work is discussed. The idea of proof of work, normally, is to protect against spam and DoS attacks. With bitcoin, however, it is ... Published on Jul 21, 2019 Schritt für Schritt Anleitung für das Kaufen von Bitcoin und über $100 geschenkt mit einfachen Quiz-Fragen. Das Video ist somit sowohl für Anfänger als auch für ... Daily Crypto Technical Analysis: 21. 10. 2020 // Bitcoin & Ethereum Price Prediction 🔴 SUBSCRIBE FOR MORE BITCOIN & CRYPTO STRATEGIES, TUTORIALS & NEWS: http...

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