21 Bitcoin Computer – der erste Bitcoin Computer überhaupt ...
Wie richte ich den 21-Bitcoin-Computer ein? DOTCOM Waste
Mining (And Learning) With The 21 Bitcoin Computer ...
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Check out the 21 Bitcoin computer. It's gaining engineering traction.
What brought me to bitcoin was folks writing complex code and building interesting things with programmable money that was simply impossible before. I just got my 21 computer in the mail and for all its failings as a terrible miner and expensive hardware, it's biggest win is worth the cost: Watching, learning and sharing code and ideas with bitcoin engineers. Writing apps on the 21 platform is fun and rewarding. If you've dismissed the 21 machine, I recommend spending the $400, getting one . Join the engineering community experimenting and exploring what bitcoin can do. NOTE: I'm neither employed/paid/endorsed by 21. I just stumbled into their community and liked the code created.
[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
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.
RE: 21 Bitcoin Computer and preloading bitcoin instead of mining
Why the mining chip when it's apparently cheapeeasier to preload some bitcoin?
Get developers familiar with the concept of having bitcoin as a system resource.
Possibly avoid regulatory/legal/policy hurdles. This way it's just some product you can buy on amazon.
Buffered Mining: "As soon as your 21 Chip connects to the 21 Pool we begin streaming you a pro-rata share of your mined bitcoin". You don't need to wait for the 21 pool to find a block to begin receiving bitcoin. This requires that you can't change the mining pool, which in return requires the custom chip. In the future, different chips will probably point to different pools to counteract miningpool centralization.
Mining decentralization: "The more small devices that run at a loss, the more pressure will be put on large for profit miners. Eventually, large miners will go out of business and billions of not-for profit miners will secure the network. Natural decentralization through open technology." (llortoftrolls)
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:
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
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:
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:
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! ;-)
What is the 21 Bitcoin Computer and should I get one?
Title says it all, I've kept my ear to bitcoin. I even have a mere 15-20$ in bitcoins depending on which way bitcoin is swinging this weekend. I'd like to know what this means for Bitcoin and should I get one? I've gone to the website for the computer but I'd like to know. What does this mean? Is it a step forward? should I get one? Or should I tread with major caution?
21 Inc ist der Schöpfer des 21 Bitcoin Computers. 21 Inc über die Pläne der automatisierten Machine to Machine Bitcoin-Zahlung. Schon bald sollen unsere Computer eigenständig Zahlungen tätigen. Der 21 Bitcoin Computer kam in einer sehr schönen Blackbox mit einer 21 an. Es mag eine gute Wahl sein, nur um zu sehen, wie Mining funktioniert, aber wie bei den meisten USB-Minern: Das Programm, mit dem die Minenarbeiter für das Bitcoin-Protokoll gestimmt haben, wird als getrennter Zeuge oder SegWit bezeichnet. Das bedeutet, dass die übergeordnete Bitcoin-Blockchain Sidechains erzeugen ... A few days ago a $400 charge hit my credit card and Amazon notified me that my 21.co bitcoin computer was on its way. Essentially a Raspberry Pi connected with a custom bitcoin-mining ASIC and a ... 21 Bitcoin Computer vs Bitcoin Miners. 21 Bitcoin Computer Hash Rate: 50 GH/s at 0.16 J/GH; Current Bitcoin Difficulty: 79102380900.22600000 (last updated 12/17/2015) Estimated Bitcoin Mined Per Day: 0.00031789; The 21 bitcoin computer is a terribly inefficient bitcoin miner, at $400 per device the hash is 10 times more expensive than other ...