Beginner’s Guide to ️⚡Lightning️⚡ on a Raspberry Pi by ...

Raspberry Pi Cold Storage /r/Bitcoin

submitted by HiIAMCaptainObvious to BitcoinAll [link] [comments]

CoinCooler, Simple Bitcoin Cold-Storage application using an offline Raspberry Pi.

Dear members of the Bitcoin community.
I would like to introduce a product I built for enabling safe and simple cold storage. The product is called coincooler, please check it out at
My goal was a cold storage procedure that is simple enough for non technical people to use (e.g. my wife), without any compromise on security. Moreover, I wanted to be sure that even 10 years down the line I would still remember how to get my bitcoins out of cold storage.
The attack surface against cold storage procedures is quite large, and much of it is not in the realm of computer engineering at all. Here is a simple example. You can lose your coins because you didn’t encrypt your wallet and a hacker stole them. However, encryption creates another problem, because you can equally (and perhaps even more easily) lose your coins if you encrypt your wallet but then forget your password. So now what? write the password down? again, opening the door to someone stealing it or forgetting where you wrote it down etc…The point being that any cold storage scheme has to strike a delicate balance between many factors, and different cold storage solutions find different sweet spots in this space.
When building coincooler I was focusing on the following principles:
I achieved the balance I was aiming for by building an application that runs on a Raspberry Pi. The Raspberry Pi is an ideal machine for Bitcoin cold storage because it is cheap, simple and all the data is restricted to the SD card. If you use a PC or a laptop, the machine itself become a security risk. Modern computers and operating systems are so complex that it is reasonable that if the machine itself is compromised or stolen some data about your private keys may be gleaned, and I’m not even talking about hardware back doors. The raspberry pi on the other hand is extremely simple. Moreover, all the data is on the SD card, so you can just destroy the SD card after generating the cold storage addresses and keys (e.g. burn it on the stove) and you can be completely sure that nothing is left behind, something that is much harder to achieve with a PC or a laptop.
So bottom line, I built an application that runs on a raspberry Pi. The application code itself is open sourced on github. Check it out on (you can play there with the exact same application that is running on the raspberry pi to get a feel for it) and let me know what you think.
Assaf Shomer
CoinCooler CEO
[email protected]
submitted by assafshomer to Bitcoin [link] [comments]

Notes on putting Bitcoin Armory on a Raspberry Pi for Bitcoin cold storage

These are my notes as to what I had to do to get things to work since online instructions either didn't work or were missing things.
I'm using a B+ model and an 8GB SD card.
  1. I tried putting the image on from ColdPi. This doesn't work. The RPI won't boot. I don't know why and I can't troubleshoot it.
  2. Their other method ( uses a MUCH older version of Armory and doesn't have enough instructions.
  3. Go to Armory site and download the latest version Follow these instructions:


What to do:
a) untar the offline bundle
b) try and verify the signatures (fail!)
c) install the debs: you can try to do it by running the script (via startx, but I'm doing it from the CLI: sudo dpkg -i *.deb
d) Instll the armory package: sudo tar -zvxf armory*tar.gz -C /
e) make the armory desktop launcher (copy the last section of the
f) Now you have to set it up to be offline:

 SystemSpecs = None try: raise SystemSpecs = GetSystemDetails() except: 
There is no other clear way of making Armory start in offline mode. You'd think that there would be some CLI parameter!
g) disable your networking in case you accidentally plug in the ethernet cable by running: "update-rc.d -f networking remove" . NOTE: This does not disable WiFi. I tried plugging in WiFi dongle and it still connected.
h) stop sshd from running on startup:type this in: sudo touch /etc/ssh/sshd_not_to_be_run
submitted by mk_gecko to raspberry_pi [link] [comments]

help me steal bitcoins from raspberry pi cold storage

I'm a Chinese cyber-terrorist from North Korea and I want to steal a guys bitcoins. My victim has pretty much followed this guide for creating a raspberry pi cold storage with raspbian and electrum. Here's the information I have on the situation:
The bad news:
The good news:
I really need to steal this guy's bitcoins. Pls help.
EDIT: The reason he uses the usb and doesn't just read and manually type in the transaction info is because he's afraid of making a typo and losing the bitcoins in a badly formatted transaction.
submitted by l4than-d3vers to Bitcoin [link] [comments]

How to put Armory on a Raspberry Pi for Bitcoin cold storage. (x-post raspberry_pi)
This is a cross-post, but I have no idea how to make a crosspost link, so the link is in this comment.
submitted by mk_gecko to BitcoinBeginners [link] [comments]

Bitcoin Newcomers FAQ - Please read!

Welcome to the /Bitcoin Sticky FAQ

You've probably been hearing a lot about Bitcoin recently and are wondering what's the big deal? Most of your questions should be answered by the resources below but if you have additional questions feel free to ask them in the comments.
It all started with the release of the release of Satoshi Nakamoto's whitepaper however that will probably go over the head of most readers so we recommend the following videos for a good starting point for understanding how bitcoin works and a little about its long term potential:
Some other great resources include, the Princeton crypto series and James D'Angelo's Bitcoin 101 Blackboard series.
Some excellent writing on Bitcoin's value proposition and future can be found at the Satoshi Nakamoto Institute.
Some Bitcoin statistics can be found here and here. Developer resources can be found here. Peer-reviewed research papers can be found here.
Potential upcoming protocol improvements and scaling resources here and here.
The number of times Bitcoin was declared dead by the media can be found here (LOL!)

Key properties of Bitcoin

Where can I buy bitcoins? and are helpful sites for beginners. You can buy or sell any amount of bitcoin (even just a few dollars worth) and there are several easy methods to purchase bitcoin with cash, credit card or bank transfer. Some of the more popular resources are below, also check out the bitcoinity exchange resources for a larger list of options for purchases.
Here is a listing of local ATMs. If you would like your paycheck automatically converted to bitcoin use Bitwage.
Note: Bitcoins are valued at whatever market price people are willing to pay for them in balancing act of supply vs demand. Unlike traditional markets, bitcoin markets operate 24 hours per day, 365 days per year. Preev is a useful site that that shows how much various denominations of bitcoin are worth in different currencies. Alternatively you can just Google "1 bitcoin in (your local currency)".

Securing your bitcoins

With bitcoin you can "Be your own bank" and personally secure your bitcoins OR you can use third party companies aka "Bitcoin banks" which will hold the bitcoins for you.
Note: For increased security, use Two Factor Authentication (2FA) everywhere it is offered, including email!
2FA requires a second confirmation code to access your account making it much harder for thieves to gain access. Google Authenticator and Authy are the two most popular 2FA services, download links are below. Make sure you create backups of your 2FA codes.
Google Auth Authy OTP Auth
Android Android N/A

Watch out for scams

As mentioned above, Bitcoin is decentralized, which by definition means there is no official website or Twitter handle or spokesperson or CEO. However, all money attracts thieves. This combination unfortunately results in scammers running official sounding names or pretending to be an authority on YouTube or social media. Many scammers throughout the years have claimed to be the inventor of Bitcoin. Websites like bitcoin(dot)com and the btc subreddit are active scams. Almost all altcoins (shitcoins) are marketed heavily with big promises but are really just designed to separate you from your bitcoin. So be careful: any resource, including all linked in this document, may in the future turn evil. Don't trust, verify. Also as they say in our community "Not your keys, not your coins".

Where can I spend bitcoins?

Check out spendabit or bitcoin directory for millions of merchant options. Also you can spend bitcoin anywhere visa is accepted with bitcoin debit cards such as the CashApp card. Some other useful site are listed below.
Store Product
Gyft Gift cards for hundreds of retailers including Amazon, Target, Walmart, Starbucks, Whole Foods, CVS, Lowes, Home Depot, iTunes, Best Buy, Sears, Kohls, eBay, GameStop, etc.
Spendabit, Overstock and The Bitcoin Directory Retail shopping with millions of results
ShakePay Generate one time use Visa cards in seconds
NewEgg and Dell For all your electronics needs, Coinbills, Piixpay,, Bylls,, Bitrefill, LivingRoomofSatoshi, Coinsfer, and more Bill payment
Menufy, Takeaway and Thuisbezorgd NL Takeout delivered to your door
Expedia, Cheapair, Destinia, Abitsky, SkyTours, the Travel category on Gyft and 9flats For when you need to get away
Cryptostorm, Mullvad, and PIA VPN services
Namecheap, Porkbun Domain name registration
Stampnik Discounted USPS Priority, Express, First-Class mail postage
Coinmap and AirBitz are helpful to find local businesses accepting bitcoins. A good resource for UK residents is at
There are also lots of charities which accept bitcoin donations.

Merchant Resources

There are several benefits to accepting bitcoin as a payment option if you are a merchant;
If you are interested in accepting bitcoin as a payment method, there are several options available;

Can I mine bitcoin?

Mining bitcoins can be a fun learning experience, but be aware that you will most likely operate at a loss. Newcomers are often advised to stay away from mining unless they are only interested in it as a hobby similar to folding at home. If you want to learn more about mining you can read more here. Still have mining questions? The crew at /BitcoinMining would be happy to help you out.
If you want to contribute to the bitcoin network by hosting the blockchain and propagating transactions you can run a full node using this setup guide. If you would prefer to keep it simple there are several good options. You can view the global node distribution here.

Earning bitcoins

Just like any other form of money, you can also earn bitcoins by being paid to do a job.
Site Description
WorkingForBitcoins, Bitwage, Cryptogrind, Coinality, Bitgigs, /Jobs4Bitcoins, BitforTip, Rein Project Freelancing
Lolli Earn bitcoin when you shop online!
OpenBazaar,, Bitify, /Bitmarket, 21 Market Marketplaces
/GirlsGoneBitcoin NSFW Adult services
A-ads, Advertising
You can also earn bitcoins by participating as a market maker on JoinMarket by allowing users to perform CoinJoin transactions with your bitcoins for a small fee (requires you to already have some bitcoins.

Bitcoin-Related Projects

The following is a short list of ongoing projects that might be worth taking a look at if you are interested in current development in the bitcoin space.
Project Description
Lightning Network Second layer scaling
Blockstream, Rootstock and Drivechain Sidechains
Hivemind and Augur Prediction markets
Tierion and Factom Records & Titles on the blockchain
BitMarkets, DropZone, Beaver and Open Bazaar Decentralized markets
JoinMarket and Wasabi Wallet CoinJoin implementation
Coinffeine and Bisq Decentralized bitcoin exchanges
Keybase Identity & Reputation management
Abra Global P2P money transmitter network
Bitcore Open source Bitcoin javascript library

Bitcoin Units

One Bitcoin is quite large (hundreds of £/$/€) so people often deal in smaller units. The most common subunits are listed below:
Unit Symbol Value Info
bitcoin BTC 1 bitcoin one bitcoin is equal to 100 million satoshis
millibitcoin mBTC 1,000 per bitcoin used as default unit in recent Electrum wallet releases
bit bit 1,000,000 per bitcoin colloquial "slang" term for microbitcoin (μBTC)
satoshi sat 100,000,000 per bitcoin smallest unit in bitcoin, named after the inventor
For example, assuming an arbitrary exchange rate of $10000 for one Bitcoin, a $10 meal would equal:
For more information check out the Bitcoin units wiki.
Still have questions? Feel free to ask in the comments below or stick around for our weekly Mentor Monday thread. If you decide to post a question in /Bitcoin, please use the search bar to see if it has been answered before, and remember to follow the community rules outlined on the sidebar to receive a better response. The mods are busy helping manage our community so please do not message them unless you notice problems with the functionality of the subreddit.
Note: This is a community created FAQ. If you notice anything missing from the FAQ or that requires clarification you can edit it here and it will be included in the next revision pending approval.
Welcome to the Bitcoin community and the new decentralized economy!
submitted by BitcoinFan7 to Bitcoin [link] [comments]

Where can you actually SPEND dogecoins? [Please Add on]

When trying to explain dogecoin to people for the first time, the #1 question I get is "Yeah but, can you actually use it to buy things?"
One of the major things that will take Dogecoin to the moon will be people actually using the Ð. For a currency to gain legitimacy, it's got to be spendable. The good news is, there are sites popping up that take the Ð! Some sites also list other sites that take the Ð and serve as directories. Considering how great this community is and how quickly we are growing, the number of transactions and using Ð as real money could really make the difference!

~ ~ ~ Dogecoin Stuff ~ ~ ~

CoinOK - Various Dogecoin Articles cocomfy - Various Dogecoin Articles DogeWow - Dogecoin Shirts KawaiiCrypto - Dogecoin/Crypto Stickers Shibe Mint - Physical Dogecoins

~ ~ ~ Clothing ~ ~ ~

BedlamThreadz - Shirts, Caps and Accessories BitDials - Luxury Watches, Jewelry, Bags etc. ClockworkCrypto - Crypto Clothes and merch CrownLifestyle - Beach Articles, Bikinis, Swimsuits, Towels etc. CryptoBantam - Crypto Clothes Cryptoish - Crypto Shirts CryptoShopper - Crypto Clothes and merch CryptoVerge - Bitcoin Shirts CypherMarket - Crypto Shirts, Bags and Mugs Eat Me Clothing - Huge Clothing Sortiment Encrypted Apparel - Crypto Clothes Frank & Beans - Underwear HippTee - Crypto Shirts KALEIDOO - Vintage Clothing Kryptoez - Socks Krypto Threadz - Crypto Clothes MyCoconutHeart - Women Clothes MyCryptoGear - Crypto Clothes ParkAndFinch - Glasses Print-Ted - Crypto merchandise collection and Design your own shirt Sakama - Leather Jackets & handknotted rugs The DOTA scene - DOTA Merchandise WhaleApparel - Crypto Clothes

~ ~ ~ Donating ~ ~ ~

Animal Neotropical - D5ivRQwT4TU8CEjNBhorpMKSe8bVkMYURQ - via changelly DogecoinSocksForTheHomeless - 9vnaTWu71XWimFCW3hctSxryQgYg7rRZ7y Doge4FAH - DUCKvJPNT16USvJmWWEwchZpRVHZwm4zRW Immunity Project - DMx7wPZ5ppZDEDWr1XSrpMdMRbGH7LXs97 Kamikaze Comics - DC8Tuid8X3Qwnpo5cvBum19w2LRWXfepqr Onwadan Foundation - via Tor Project - DGvn1HLeMaCZEZZYUeBWBhUCJiS2hjzbGd

~ ~ ~ Food ~ ~ ~

35North - Extra Virgin Olive Oil Blockchain Coffee - Coffee DrApis - Raw Portuguese Bee Honey HODL Fuel - Coffee and Merch PexPeppers - Hot Sauces SaffronStore - Saffron

~ ~ ~ Gaming ~ ~ ~

8BitDo - French Retro Products Allgamer - Game Servers CJS CD Keys - Steam/Origin/Uplay Games/Keys - Steam/Origin/Uplay Games/Keys Keys4Coins - Steam/Origin/Uplay Games/Keys MMOGA - Steam/Origin/Uplay Games/Keys SimRai - Game Servers

~ ~ ~ Gift Cards ~ ~ ~

Bidali - Various Gift Cards Bitrefill - 750+ Gift Cards CoinCards - Huge Selection of Gift Cards GiftOff - Gift Cards

~ ~ ~ Smoking ~ ~ ~

101Vape - Vape Products Frontier Vapor - Vape Accessories RX Vape - Vape Products Vape Crypto - Vape Products VapePENstore - Vape Products Vaposhop - Vape Products Vapour Depot - Vape Products

~ ~ ~ Tech Stores ~ ~ ~

ArgoMall - Philippine Online Tech Store, Smartphones, TVs, Laptops, etc. DS Tec - Spanish Online Tech Store Ecosystems - Huge selection of Tech Articles FastTech - Wide Variety of Tech Articles

~ ~ ~ Traveling ~ ~ ~ - Flight and Hotel Booking Greitai - Lithuanian Travel Site with Flight and Hotel Booking MoreStamps - Flight and Hotel Booking Travala - Hotel Booking Trippki - Hotel Booking

~ ~ ~ VPN/Proxy ~ ~ ~

AzireVPN - VPN BlackVPN - VPN CactusVPN - VPN DeepWebVPN - VPN - VPN PureVPN - VPN SaferVPN - VPN Surfshark - VPN TorGuard - VPN

~ ~ ~ Web Hosting ~ ~ ~

97cents - Web Hosting AbacoHosting - Web Hosting CoinHost - Web Hosting CryptoCloudHosting - Web Hosting Flokinet - Web Hosting HosterBox - Web Hosting Host Havoc - Web Hosting & Game Servers - Web Hosting Hostinger - Web Hosting Hostsailor - Web Hosting Hostwinds - Web Hosting Motov - Web Hosting Privex - Private Cloud Hosting Snel - VPS THCservers - Web Hosting QHoster - Web Hosting

~ ~ ~ Misc ~ ~ ~

247bits - Crypto Cold Storage Cards AlmightyBoost - All Natural Male Testosterone Booster BitCars - Luxury Cars and Oldtimers BitStickers - Cryptocurrency Stickers BitStore - General Store with option to pay literally everything you want online with Dogecoin BlockchainAdventures - "Toshi to the moon" book and merch BP Fragrance - Dutch perfumes shop Bullion79 - Gold Coins, Gold Bars, etc. CleanItSupply - Cleaning Supplies Coinvibe - Crypto Merch CryptoArt - Crypto Art CryptoContactLenses - Contact Lenses CryptoLife - Crypto Merch CryptoMined - Crypto Mining Equipment Crypto Posters - Crypto Posters, shirts, hats, phone cases CryptoUniverse - Crypto Mining Equipment GPS Tracking Made Easy - Easy & Simple GPS Tracker Kits Jobgate - Job Market payed with Dogecoins Lue's House of International Decor - Decor Articles Lynx Art Collection - Art MobiSun - Solar Panels, Power Banks, Solar Generators Molecule Store - Various Articles about molecules Olympian Bitcoin - Crypto Merch Peername - Blockchain-Based Domain Names Pi-Supply - Raspberry Pi and accessories ShopOfThings - Electronic Tech Parts SugarTrends - Huge local stores online marketplace ThaiBaM - Coffee, Tea, Oils, Balms etc. TormentBox - Various prank articles like glitter letters etc. WikiLeaks Shop - Official Shirts, Mugs, Stickers, Posters, etc.

All links are provided with the best of my knowledge.Please make sure to check the shops listed here yourself again, before spending your Dogecoins there.In no way should the admin of this website be responsible for any fraudulently activities from any listed shop.

Thanks to Dimi for the links
DimiFWDonate: D62WT9ebWbVW8QtBE57TE8CUaH3s95T3dN
submitted by SoiledCold5 to dogecoin [link] [comments]

Putting the fun back into FUNgibility (full node, JM, and yield generator)

I'm new to BTC (<1 year) and not a blockchain guru, but I started stacking sats as an alternative investment. I'm not retiring off my crypto anytime soon, but its enough value that I want to increase my BTC security and competency (currently stored in an exchange wallet like a pleb). I was on the verge of moving everything into cold storage, but then I found JM through Googling keywords along the lines of "bitcoin income generation."
I've been studying up on JM for the last 48h, and decided to: build a full node, create a JM wallet, start running yield-generator. Even though it sounds like income will be zero or close to zero, I hope it will be a fun learning project.
I'm going to go out right now to buy some hardware components and will continue to update this thread after each milestone. I'm expecting to learn a lot through this process so I am making this post so that others can learn from my inevitable mistakes, and a place to ask for help if I run into problems.
Stay tuned for updates!

Update 1: Shopping completed. I'm going with a Raspberry Pi with 4GB of ram, 0.5TB external SSD to store the blockchain. I bought a couple of accessories to help me set up the environment (keyboard, mouse, lcd, usb hub). I also bought a pimoroni fan shim to make sure nothing overheats. I'll be using my windows laptop for initial setup as well. Next step is hardware setup and software environment (Raspian, fan service controller, and hdd partition). Image of all hardware components:
Update 2: Good success with the hardware portion of the project. After I got my OS running I immediately nuked my SD card by running fstab without reading man first - classic. I wasted an hour trying to recover, then reflashed my OS and got everything running. First I got the fan service controller working, then formatted external hdd for ext4 (came with ntfs from the store), setup firewall and tor, and installed bitcoind. The next step is to finish allowing my blockchain to sync, and then test all functionality before starting with joinmarket. Results:
Update 3: It is taking a long time to fully sync to the network so I decided to install but not configure JM during this lag time. I successfully installed JM, but I decided to call it quits for today before editing joinmarket.cfg. I was hoping to be completely done today but I lost several hours due to my own incompetence. I should have enough time during the week to continue this project, so I will check back in tomorrow. Does anyone have advice on joinmarket.cfg settings for tor? Current status:
Update 4: After a long delay due to lack of time during work, I finally got everything working 100%. Due to privacy and security advice from friends, I will not be posting any specific information about my JM wallet, but it is up and running and able to submit and participate in coinjoins - very exciting! I'm going to start learning about payjoin next. Thank you to Joinmarket creators and community for helping me through this process... I will continue to provide new content in the future with any significant updates to either joinmarket code base or to my own setup.
submitted by FUNgibility21 to joinmarket [link] [comments]

What's your cheapest dedicated hardware?

What's the cheapest dedicated hardware you can think of? I'm talking about a computer used only for bitcoin, never internet connected or maybe even never network connected. Are there cheap setups from discount stores that could run a remote node for cold storage? Maybe someone already has a raspberry pi setup for cheap cold storage? I'm excluding hardware wallets for this because those need some hardware anyways.
submitted by eatatacoandchill to Bitcoin [link] [comments]

Raspberry Pi 4 w/ Full Node vs Ledger Nano S

So I'm somewhat new to the crypto game. I finally hit .1 btc and now have enough that I feel the need to move it off the exchanges and into cold storage ASAP.
I was going to get a Nano ledger S for $60 from the ledger website but saw that Raspberry Pi just launched their new model and apparently it's capable of running a full node. The cheapest version is also only $35 (i'd get the case for it too though which is just $5).
Now I'm not 100% sure what this means because of my inexperience but from what I understand, running a full node means you essentially pay no fees since you're verifying transactions yourself and seems like the best way to store crypto.
Now i have a couple of questions, would it be wise to use the Raspberry Pi as a cold wallet? I like the idea of being completely in control of my bitcoin and having the ability to transact without needing a 3rd party. I am pretty techy but don't have much coding experience so I'm not sure how complicated this would all be.
Also I know with the ledger S, in the event the device is broken, lost or stolen I can recover the bitcoin with seed words. Is something like this possible with Raspberry Pi?
submitted by 10yearbull to Bitcoin [link] [comments]

Homelab collective ressources post!

Hey guys!
I'm fairly new to this sub and to having a home lab in general and I found this community to be so kind and helping, I wanted to give back what I've learned. I'm seeing a lot of questions asked around on improvements and on what to do with x extra hardware so I thought it would be nice to have a thread to regroup that.
I'll put here some stuff I gathered and the most common questions I've seen, feel free to contribute and i'll update the post along.
Latest Additions
Homelab Dashboard
Posts about dashboards have been growing lately and here are some of the best that were kind enough to provide us with their sources.
User Screenshot Source
yours truly
NiknakSi TBA
yourofl10 TBA
mescon & SyNiK4L
Or build yours from scratch: PRTG API, ELK, Grafana, freeboard, JumpSquares
Some other resources: Custom Monitoring Scripts by 0110010001100010
Credits to apt64 for his original post
= Pi specific =
= Download Automation =
= Virtualization =
= Monitoring =
= Media Center =
= Remote access =
= VOIP =
= Networking =
= File Servers/Storage/RAID =
= Cameras =
= Documentation =
= Dynamic DNS =
= Backup =
= Creating network diagrams =
= Guides =
= Misc =
That's all I could come up with on top of my head + some research, passing over to you guys so we can get a nice complete list!
Let's try and stick with free(or mostly) softwares, let me know if you guys feel otherwise.
submitted by Gabisonfire to homelab [link] [comments]

Bitcoineum: Virtual mining on Ethereum

Hi Guys,
I'm officially announcing that I have started mining Bitcoineum on the Ethereum network as of 4:00 am EST July 19, 2017, and anyone is free to join me. This is a fair mined, no founder's reward, no premine, no hidden shenanigans token. I was going to make this public announcement even earlier but due to scheduled travel I wanted to make sure I was available to answer questions if there were any.
Bitcoineum attempts to duplicate the value preserving aspect of Bitcoin and bake it into the Ethereum network as an ERC20 Token while employing a completely novel virtual mining system. Think of it as a modular base token that abstracts the mining, and has functionality for converting into other types of tokens and systems as the ERC20 infrastructure evolves. A transferrable proof-of-burn that is designed to bootstrap a value store right onto the Ethereum smart contract network. A simpler and more straight forward approach than trying to attach a separate smart contract network to your value store, such as what is happening in Bitcoin right now.
Further, anyone who has Ether can mine Bitcoineum from a web interface right now without any special hardware. That means device independent mining, mobile phones, the web, embedded, raspberry pi, whatever. I wanted to create a fair, equitable, distributed and accessible mining system that can drive value into other tokens. The example web miner works but is very bare bones, and needs further improvement but anyone can build a miner that interfaces with the smart contract. I can imagine a very sleek front end built around it to start, but the actual mining algorithm can be tweaked to try and optimize returns. A little bonus for the people interested in algorithmic trading. I am also actively working on a mining pool contract that will aggregate multiple users which will both increase the likelihood of mining the block, and proportionally increase the reward. The idea that other contracts will drive mining in the future is central to Bitcoineum. The possibilities behind that are very interesting and could help create actual on chain financial products.
You can read more about it, including motivations, technical white paper, and other general information at:
You can check out the Solidity smart contract code, testing harnesses, and miner frontend at Pull requests gladly accepted. If you have the chops to security audit the contract code I'd be glad to hear your feedback.
You can start mining directly with a locally unlocked Geth/Parity node, and the web miner at It is web console based, and tested mostly on Chrome. The one feature that is worth noting is that you can set the credit account to a cold wallet address, so you can limit the funds the miner has access to in your unlocked geth instance and still securely deliver any mining rewards to cold storage directly. I recommend doing this to limit any potential loss of funds due to bugs, misconfiguration, etc. I don't want to get reports back that someone lost a million ether on their unlocked instance because of a hack or a silly bug. Keep the accessible miner account limited, and verify the contract address on the transactions being done.
If you are concerned about the integrity of the web site for some reason (it is completely statically served on S3) you can run the miner directly from the git repo, although that's a bit outside of the scope of this post.
It is also possible to mine using MetaMask, but without being able to unlock your wallet it is extremely tedious. Once this is addressed upstream it will not be necessary to run a local node to mine Bitcoineum, really easy decentralized mining. Currently I disable metamask/parity chrome client when mining since they tend to interfere.
The contract address is 0x73dd069c299a5d691e9836243bcaec9c8c1d8734
Finally, a quick word about proof-of-burn. There was a rigorous debate about it's merits last time I released a token for registering Lost ether. I am a strong proponent of proof-of-burn as a substitute for proof-of-work, but I am cognizant of the argument that there must be a reason to exist beyond simply store-of-value, deflationary, fixed cap semantics. Although, I believe that Bitcoineum's structure is useful and complementary to inflationary Ether, I've taken it one important step further. I think there are several things about an ERC20 token that we are only beginning to explore. You can think of it as an atom in a larger structure, a building block towards more sophisticated capabilities. Bitcoineum's user-oriented mining and value semantics are meant to serve as a base token for a wide range of other applications. I've built a simple but effective interface into the token called Transmutable. This let's one Bitcoineum seamlessly turn into other ERC20 tokens that have yet to be created. The value burned to create Bitcoineum can than transfer directly into these other types of tokens in a standardized way. A a tangible example users could migrate value into a successor ZkSnark Bitcoineum token once that functionality makes it into Etheruem. So the value store itself can directly be used as an input into more advanced tokens. This is both new and novel functionality, that when combined with it's other properties makes it a worthy thing to mine. Please join me :D.
I'll be around for a little while to answer questions, but I'm also on the road the next few weeks, so if I'm slow to respond to pull requests for the awesome new miner your wrote please be patient. You can email me at [email protected], reach me here on Reddit, or come at me on twitter @brantonbits. Despite the testing and work I've put into it this is still a beta product, so you mine at your own risk. I'm hoping this makes a useful addition to the Ethereum ecosystem, and chips away at the idea that Bitcoin can survive simply as a store-of-value when developers can create these types of systems right on Ethereum.
submitted by coinlock to ethereum [link] [comments]

Here are Security Tips to Generate Cold Storage Securely

Security is a spectrum.
The amount of effort, cost, and paranoia dedicated to generating cold storage should be proportional to the value being protected and its significance to the holder both now and potentially in the future.
To avoid loss of funds, here are some tips to generate cold storage as securely as possible:
submitted by cryptostorage to Bitcoin [link] [comments]

Crypto Cold Storage on my Pi

I'm using a Raspberry Pi 2 Model B for cold storage for my crypto currencies.
Currency Software Electrum style seed Offline transaction signing
Bitcoin Electrum Y Y
LiteCoin Electrum-LTC Y Y
Ethereum MyEtherWallet N ?
Monero monero-wallet-cli Y ?
I've done cold storage transaction signing for BTC and LTC. I haven't had to do it for ETH yet, so I don't know how well it will work. And XMR is such a pain to work with because everything is hidden that I actually had to open my wallet on a connected computer to verify that I had funds and track down some missing coin. I haven't tried to do offline transaction signing with XMR either.
I have a copy of all of my private keys and seeds and passwords in a text file on my Pi. Also on a special USB drive. The one thing to be aware of is that SD cards and USB drives can get corrupt or lose data if they just sit for years. I think that the electrons in the storage chips need refreshing periodically (unlike magentic storage on hard drives).
submitted by mk_gecko to raspberry_pi [link] [comments]

Here are Security Tips to Generate Cold Storage Securely

Security is a spectrum.
The amount of effort, cost, and paranoia dedicated to generating cold storage should be proportional to the value being protected and its significance to the holder both now and in the future.
Here are some tips to generate cold storage as securely as possible:
submitted by cryptostorage to btc [link] [comments]

Stratis Information & FAQ

I have noticed that a lot of people that are new to Stratis have a lot of the same questions. The purpose of this post is to clear some of them up. I think it is important this information be posted here because lots of people scan a project's Reddit page to gauge its community and to perform initial research. This list will grow, and I will gladly take suggestions! Cheers to Stratis success!
Please Note: A lot of the information below can also be obtained by joining the Stratis Slack, visiting the project's main webpage, or visiting the project's WIKI page.
What is Stratis?
Stratis is a platform where developers and businesses will be able to quickly and easily build decentralized, blockchain based apps written in C# and using the Microsoft .NET framework. The Stratis team is aiming to provide a turnkey solution to existing businesses to ensure they are able to test and deploy projects quickly and with a high level of security.
What are some of Stratis's advantages?
First and foremost, Stratis enables existing developers to leverage their current C# and .Net knowledge because the platform is based around these two technologies. This is a huge advantage because it essentially lowers the barrier to entry for developers and businesses to get started developing blockchain based apps. Second, the Stratis Breeze wallet will be very unique. Its infrastructure will be based on Tumblebit technology such that Tumbler masternodes on the network will enable trustless, private transactions between wallets. In addition, Bitcoin holders will also be able to use the wallet to tumble their Bitcoins and transfer between Bitcoins and Stratis tokens seamlessly. Many in the community have speculated this will expose the Stratis token to an already wide Bitcoin audience. Moreover, apps built on Stratis will run in their own side-chains. This will help avoid the main Stratis chain from becoming bloated. Last, the Stratis platform is backed by its own token: STRAT. This token is proof of stake, and so it avoids the unnecessary and wasteful energy output some other proof of work coins result in. Finally, since Stratis is a C# derivation of Bitcoin, tech improvements such as Segwit and Lightning Network could be implemented on the main or side-chains in the future.
What is the difference between Stratis and Ethereum?
Great question; check this video out.
What current (pre-Breeze) wallet should be used?
Users can store their Stratis in cold storage using a Ledger Wallet or by using the official interim wallet.
How can I stake my Stratis?
You will need to download the official Stratis wallet which is linked above, and then there will be an option to unlock the wallet for staking. Be aware of token security; read this blog post.
What is the total supply / inflation of the STRAT token?
As of May 9, 2017 there are 98,378,285 STRAT outstanding. A common misconception I see all the time in the Stratis community regards the inflation rate. The inflation rate is NOT 1%. A new block is derived via POS about every minute, and 1 STRAT is generated per block. This means, on average, about 1440 new STRAT are mined each day since there are 1440 minutes in a day. That equates to 525,600 new STRAT in a 365 day year. 525,600/98,378,285 = 0.0053. So the inflation rate as of May 9, 2017 is about 0.53%, and this rate decreases as the total supply grows.
However, not everyone stakes their STRAT. This is what makes it seem like the inflation rate is greater than it is. Around 30,000,000 STRAT are staked right now on May 9, 2017. This means that the 1440 STRAT generated per day are going to the holders of that 30,000,000 STRAT. This would equate to earnings from staking equal to about 1.75% if 30,000,000 STRAT were being staked the entire year (525,600/30,000,000 = 0.0175).
So be aware of this distinction. Inflation of the STRAT token is a measly 0.53% currently, but people can earn a higher percentage than that simply because not everyone stakes their tokens.
Is there a block explorer for the Stratis blockchain?
Yes, here
Can I stake on a Raspberry Pi?
Heck yah. And some great community members made a guide.
Where can I buy Stratis?
The three most liquid Stratis markets are Poloniex, Bittrex, Cryptopia. You can also purchase it through Changelly and AnycoinDirect.
submitted by bananapiggy to stratisplatform [link] [comments]

QTUM Staking Guide

Is there a place besides Reddit for me or others to contribute to a staking guide?
Table of Contents:
Cold Storage
Without staking, you can still store QTUM private keys offline. (I'm assuming some of this from my experience with Bitcoin and Ethereum. Some of the following statements could be inaccurate)
submitted by RayMetz100 to Qtum [link] [comments]

Cold wallet using a Raspberry Pi Zero 1.3

Hi everyone. I'm relatively new to the world of Bitcoin. I'm very interested in the blockchain as a technology. In order to explore, I wanted a secure way to generate a wallet.
The Ledger Nano S is scarce, so I started looking into rolling my own cold wallet. I settled on using a Raspberry Pi Zero 1.3. The Zero 1.3 is only $5 and has no networking hardware, but it does support being a USB serial client device. While technically an air gapped machine wouldn't have any communcication at all, I think a serial only link is good enough for my purposes -- No internet and no USB mass storage.
The trick was, how to install Electrum and all its dependencies without ever connecting the Pi Zero to the network. This is normally a few calls to 'apt-get' and you're done. With no networking, you have to determine the dependencies and download them manually. So I wrote some python scripts to download the necessary packages, verify their checksums and zip. Then, using Z-Modem, transfer it all over the serial link and install. (Flashbacks to BBS's in the 1990's)
Anyhow, its a long elaborate process for something that would normally be very simple... but once done, its a little linux machine that has never connected to the network and hosts an Electrum offline wallet nicely. Electrum's command line interface makes it easy to perform tasks over the serial terminal. I also put Etherium stuff on there for good measure.
I'd value any opinions or suggestions for improving my setup. You can find my step-by-step here: and I've posted the dependency list and python scripts to GitHub in case anyone's interested.
submitted by AllAboutJake to Bitcoin [link] [comments]

Log of AMA with Skycoin

boldninja Let's all give a warm welcome to @synth from and for taking the time to do this AMA
synth *hello
mike Hi Synth
jakethepanda Hey @synth
thrice.pi Hey synth
dr10 Hi
boldninja I think we can start - you guys know the drill. Give him some time to respond (no more than 2-3 questions on backlog so he can catch up)
dr10 How would you - shortly & in easy words - sum-up the advantages of SkyCoin to magazines and non-crypto people?
mgaruccio Can you explain a bit about the mesh net? Is it just an mpls network between nodes or is there something deeper going on?
michaelthecryptoguy Whassup @synth
tranzer hi synth. I have a question - are those coins that are not in circulation in any cold wallets since only a portion is currently available according to CMC? What would you say is the 1 unique feature that Skycoin has?
synth It is very difficult, because Skycoin is a very large project and already has +6 years of development. Different parts of the project have different objectives.
The cryto, coin part is about solving the problems with the existing consensus algorithms. Being able to do +300 transactions a second, transactions in seconds instead of minutes (faster than credit cards), eliminating miners, eliminating block rewards (eliminating inflation) and eliminating 51% attack and the other problems with mining.
then there are other repos and experimental projects under such as a meshnet and distributed VPN prototype, where people will be paid coins for forwarding traffic. Also prototypes of distributed social media application, with peer to peer data replication and different experimental projects. Research into immutable data structures for next generation internet. Some of them are very radical.
dr10 How does the Network consensus algorithm Obelisk work and differ from widely known algorithms like Proof of Work and Proof of Stake?
mgaruccio So how much exists today? Could I build an app on the platform if I wanted to?
mike In terms of the rate of progress, what is currently your greatest limiting factor - like funding, manpower, currently available technology?
Can you explain a bit about the mesh net? Is it just an mpls network between nodes or is there something deeper going on?
It is not actually a meshnet. It is software defined networking, it is much more powerful than just meshnet. Its a new type of networking and new completely new protocol and networking namespace, independent of the existing internet.
It supports source routing, while the existing internet does hot potato routing, so never achieves optimal latencies.
It supports multi-homing, which IPv6 does not (Which is critical for when we have gigabit or terabit networking and multi-redundant bandwidth paths)
It has default oppurunistic crypto, both link layer and end to end; so everything is encrypted by default, unlike the current internet.
It has store and forward networking and will operate in Africa or even under conditions where latencies are in the minutes or hours and packet loss is excessive. Where existing protocols cannot operate reliability. It is much more robust than IPv4/IPv6 or TCP/ip
It has improved privacy. If a packet takes a route that is 10 hops, each hop only knows the previous node in the route and the next node in the route. It is not like IPv4 where each packet gives the source and destination. The privacy level is something that does not exist on the current internet.
IP addresses are replaced by public key and no one can read traffic to a destination, without knowing the private key of the public key that identifies the destination. The system does not need 3rd parties or certificate authorities. The design is a revolution.
are those coins that are not in circulation in any cold wallets since only a portion is currently available according to CMC?
The coins are locked into 100 addresses, each with 1 million coins each. And they are released sequentially.
There is a complicated locking procedure and releasing new coins requires unamious consent and a shared secret among a group of developers. Anyone in the shared secret group can block distribution of more coins (to stop the problem that killed NXT). So by design the coins were supposed to be difficult to distribut, there had to be a good reason or justification before a distribution would be approved.
mike What are the hardware requirements to operate a wireless Skywire (the name for the protocol described above) Node?
arc-over-water nxt i think is doing ok..
How does the Network consensus algorithm Obelisk work and differ from widely known algorithms like Proof of Work and Proof of Stake?
PoS and PoW use miners. Miners receive new coins every block as a block reward. So miners are making money and will fight to control the network. An everyone will suffer because the newly created coins represent inflation.
Skycoin was designed to eliminate mining and eliminate the inflation. No block rewards, no new coins. And we needed to develop a new consensus algorithm to do that and there are only a few methods that work, for these constraints. The consensus algorithm is based upon Ben-Or's randomization procedure for achieving consensus in a distributed system, with some improvements for detecting adversarial or malicious nodes who are trying to prevent the consensus process.
There are white papers on about the specifics. I would call it "network consensus" and it uses a sort of Web of Trust (WoT), where if the people creating blocks are doing a bad job or attacking the network, then the community can get rid of them. At the same time, the people who control the network, do not have any real power to attack the network except by slowing down transactions and being annoying, so even if they become malicious the only issue is how to get rid of them and select new people.
mike Any idea when Skywire will be released and ready to test on hardware nodes (testnet or mainnet)?
mgaruccio So if there is no block reward what is the incentive to run a node?
vega What will be the actual function of Skycoin (the coin itself)? Will the coin be used as currency, as transfer of value in and between all these various developing functionalities, semi-separate projects to tie them all together or it's function will be more limited?
michaelthecryptoguy Do you have an idea on the specs of a node that would be required? In the beginning? What about with 10,000 users? (edited)
nxt i think is doing ok..
There were three people that each owned 30% of the coin. One decided he wanted out and began dumping. NXT was over 150 million I think. When he started dumping, it basicly killed NXT.
Skycoin's distribution was designed to stop dumping by the founders and early people.
After Skycoin gets to 30% of the total coins distributed, there will probably a hard time lock on the remaining coins, so that a maximum of 5% of the remaining coins can be released per year. So the distribution for the other 70% of the coins will take a minimum of 14 years (and could be longer).
We cannot even sell the rest of the coins, because if we sold 10% of the total now at $5 per coin, it would be 50 million or something and we cannot spend or even use that amount of money. Not at this stage.
Ethereum spent 30 million or 70 million in their first year or two after the ICO and then nearly went bankrupt. Silicon Valley wages and offices etc. We have been very conservative and have kept costs down and kept them responsible. Now we have coins like EOS and they want to raise a billion dollars and have not produced anything yet, do not hav a blockchain and I have no idea what they would spend that money on, but they are throwing $350,000 parties in time square for marketing/PR etc...
arc-over-water what prevents you from selling? anybody can spend that amount of money?
nxt is a newer platform than sky, market value is $220 million plus $166 million, I get what you are saying but the evidence is wrong. Community is huge and active in Nxt. But you say it is killed, i dont get it?
What will be the actual function of Skycoin (the coin itself)? Will the coin be used as currency, as transfer of value in and between all these various developing functionalities, semi-separate projects to tie them all together or it's function will be more limited?
Yes. Bitcoin has no purpose. An altcoin does two things - check your balance - send money to other people
Two features - check balance - send
For a coin to have value, people need to be forced to buy it to consume specific services. There has to be stuff for people to spend the coin on, that there is demand for.
So Bitcoin is really just a purely speculative asset. It generates no cashflow and its value is determined by perception or social convention.
Ideally, Skycoin would start off as a "better Bitcoin" (faster, more secure, new algorithm, simplier, etc), then over time we would build up an ecosystem and have some type of backing and tie the coin's value into the network and usebase.
The mesh netork (skywire) is good, because it gives something for people to do to get coins and it allows people to consume the coins. You can run your internet traffic through a VPN that tunnels over Skywire and maybe it will be a nominal amount (actually absurdly small amount of money), but there would be real economic activity and a real userbase and community using the coin. Not just speculation.
Later on the scope is much wider.
arc-over-water So the skycoin wallet will be a VPN for our internet usage?
nxt is a newer platform than sky, market value is $220 million plus $166 million, I get what you are saying but the evidence is wrong. Community is huge and active in Nxt. But you say it is killed, i dont get it?
What I am saying, is that NXT would be a lot further along than it is now and probably around where Ethereum is, except for that mistake in the distribution and keeping it too concentrated. It set them back by years. They did not consider what the impact on the price would be, over the long term, when one of the early whales started selling off or decided he wanted out.
arc-over-water But they did the same again with IOTA, same lead dev.. Its over a $Billion
they released and let the market price distribute
So the skycoin wallet will be a VPN for our internet usage?
The VPN is just one application, that uses bandwidth over Skywire. There are several things in development.
This is a BBS like 4chan, that is completely distributed, with CXO.
It will run over Skywire also, This is like building a whole new internet from scratch. The apps that run on it are going to specialized and privacy focused, etc GitHub skycoin/bbs Contribute to bbs development by creating an account on GitHub.
mike So Skycoin is a Proof of Resource coin where its value is actually backed by provision of a useful service, in this case private and secure networking? Are there plans to add decentralized storage and even distributed processing to it?
arc-over-water so these 100 separate million coin accounts will be 100 ICOs or how is the distribution patterned? is it written into the code or up to the devs?
rockyj !calculate
slackbot Custom Response
So if there is no block reward what is the incentive to run a node?
running a consensus node does not cost anything. You can run it on a raspberry pi.
The important thing is that if the people doing consensus are doing a bad job, that the community can get rid of them and replace them. The other important thing, is that they can be audited and determined automatically if they are obeying the protocol.
the miners in skycoin are not very powerful and cannot do anything except slow down transactions. They are unable to spend other people's money without their private keys, so the consensus/mining nodes are almost irrelevent. It is not like Bitcoin where the miners can hold the network hostage or act selfishly (driving up the transactions fees for their own personal benefit and delaying any innovations that would improve bitcoin for everyone, etc).
So Skycoin is a Proof of Resource coin where its value is actually backed by provision of a useful service, in this case private and secure networking? Are there plans to add decentralized storage and even distributed processing to it?
We have decentralized storage, which is called CXO. But only the bandwidth is monetized by Skywire. We do not nickle and dime and try to attach a coin cost to every API call. Everything that should be free is free. So its a different philosphy.
On top of CXO we also have distributed social media applications (simmilar to Steemit)
CXO is very similar to IFPS, but simplier and designed for our internal infrastructure and with our crypto standards, instead of being a mismash.
mike Is it possible for Skycoin to choose the best paths and route around bad or slow nodes as damage to the network, in effect reducing their impact on consensus?
looks like you answered the question above while I was typing...
tranzer How many tx/s can skycoin handle? What are block times?
thrice.pi 300 right? ^
arc-over-water on your website it says you will have a NON- Turing complete lisp language?
so these 100 separate million coin accounts will be 100 ICOs or how is the distribution patterned? is it written into the code or up to the devs?
We will have a distribution page, up on the website soon. Its complicated.
Skywire, is designed to pull coins out of circuation, through a sort of tithe on network activity and it does automatic buy backs effectively. So the distribution will actually peak and then decline. But one distribution is from the locked coins, and the locked coins are freed, then circulate, then end up at the foundation (from the skywire tithe are pulled out of circulation), but still count towards the free float.
The coin holders also receive a coinhour dividend and there will be a market rate conversion between coin hours and Skycoins and coinhours are the actual currency for the Skywire network. If you do not have enough coin hours, then you sell Skycoin for CoinHour at the market rate, to purchase bandwidth; but if you have a lot of coins then you have enough coin hours for downloading movies or VPN or whatever you are doing and it is essentially free.
So there is a dual level economic structure. Both with coin buybacks to pull coins out of circulation and with a dividend or incentive to encourage users to hold the coin if they are using the network.
arc-over-water so there will be two currencies, holding one reserves the other
Is it possible for Skycoin to choose the best paths and route around bad or slow nodes as damage to the network
Yes. This is very important.
The person dialing a connection, chooses the path of the connection!
You can choose the lowest latency path for video games or Skype, and choose highest throughput paths for video downloads etc. Or can choose paths through specific nodes or facilities or countries, for security concerns and to minimize the number of points that the traffic could be intercepted at.
mike Will Skycoin still have the node subsidy plan for setting up and registering the mesh nodes like originally planned?
dr10 When do you plan to be able to present your planned technology and services to the masses? When can they use what you try do accomplish?
on your website it says you will have a NON- Turing complete lisp language?
That is probably an error. LOL. We will have a new website soon.
There is no scripting language on the skycoin blockchain. Each transaction is constant time (for efficiency and security and to achieve the highest transaction rate and to keep the coin simple).
However, we have a language called CX in development, which is a next generation language that is beyond "smart contracts" and the toy things on ethereum. It uses immutable datastructures and is something completely new. Most of the skycoin "smart contracts" will probably be off blockchain or in personal blockchains and we do not want to shove all the data onto the main chain, because forcing everyone to download everyone one elses contracts it the world is just spamming the blockchain to death. There are better ways to do it.
Will Skycoin still have the node subsidy plan for setting up and registering the mesh nodes like originally planned?
Yes. We are going to get from 20% to 30% distributno of the coins, through network incentives for people running Skywire nodes, consensus nodes and services.
I think this is going to be massive for marketing. And it is the best way to get the coins out to the users, instead of all the coins being held by whales
samuelvihollandia I read how you suggest Skycoin could be used for VPN connections, is this the largest use case you see?
arc-over-water Maidsafe has been working on the redesign of the net for about ten years, what are you doing the same and what different?
I read how you suggest Skycoin could be used for VPN connections, is this the largest use case you see?
No. This is just something easy, that we have working. Its not the largest applicatoin at all.
80% of internet traffic right now is bitorrent and the bitorrent sites are being systematically shutdown and driven off the internet. They wont go away, but will jut go underground. (largest music tracker, with 800k people) was just shut down, bakabt (largest anime tracker) has gone closed registration, Nyantorrent etc...
User communities of millions of people will be migrating from the clearnet (the existing corporate shit-net) to the "new internet". We are going to see people migrating by the millions, whole user communities of millions of people.
arc-over-water Are you a corporation or foundation or charity? Registered? I am not sure i have seen anything about who you are? What is the dev team size? Background? - Maidsafe is open and clear so is IOTA and Stellar etc. Can you let us know who you and your team are? Especially you are talking about 15 year and up obligations..
techbytes Do we need to hold skycoin to run Skywire nodes or consensus nodes like masternodes from other coins?
Maidsafe has been working on the redesign of the net for about ten years, what are you doing the same and what different?
Maidsafe is in version 2 or 3. Maidsafe will not have a real coin until version 9. Each version takes them about two or three years. Maidsafe will not be "done" or ready for atleast 18 years at this rate.
Skycoin has been in development for ~6 years and the meshnet for 4 years and it will be finished in a few months. To the poin that people can start using it.
Skycoin is similar to maidsafe in the objective, but has a different approach and architecture and primitives. We did not try to do everything, but focused on a smaller, tractable core and got that done.
There will be multiple projects in this space, but few teams are able to plan on the time horizon necisary for building a new internet or able to design each of the components of a system this large, or figure out how to do it so that it is useful at each stage of construction of a project that may take a decade. (edited)
mike Can you see a way for Ark and Skycoin to build on each other in a synergistic manner? I'm all for not reinventing the wheel, especially when it looks like it will be replaced with antigravity like Skycoin.
I see Skycoin as essentially replacing TCP/IP and providing mesh network type functionality at the hardware level, Ark would run on top of it as a top level application layer.
arc-over-water are you up to date on Maidsafe, they are nearly out of Alpha and its more like release early next year? But that being said, Maidsafe says once it is released it is like a virus or AI type, so does Tau Chain, and also Autonomic by HunterMinerCrafter, are we heading towards AI with Maid, Sky Tau and Autonomic?
dr10 smartbridge now! :kappa:
mike So Skycoin would act as a sort of global decentralized cloud server to build on top of.
To communicate, it is more like sharing encrypted files to selected recipients than it is sending messages or hosting sites on a specific server.
Are you a corporation or foundation or charity? Registered? I am not sure i have seen anything about who you are? What is the dev team size? Background?
I think there are over ~60 people who have worked on Skycoin or have made major contributions. Its really a project from the darknet.
Many of the contributors are anonymous. Some of them have security clearances and were in the military industrial complex and one of them worked at the San Diego Naval Defence Research Lab and a lot of the idea for the networking protocols came out of public sector academic researched, funded from there.
We also have a lot of very very early Bitcoin people, hardcore crypto people that predate Bitcoin and an Ethereum core developer, etc..
On the Chinese side we have an early investor in Alibaba and telecom investor. And are doing pilot with china aviation group (owns four publicly traded airline companies) and apparently now Sinopec (which is 2nd largest publicly traded corporation in world).
Then we have people who are part of israeli and US intelligence and are probably doing some sort of money laundering or phychological operations background, who just showed up for some reason. This group seems very interested in the "applications" of these coins and how to improve tranaction privacy and the specifics of the CoinJoin protocol implementation. We got a lot of advice from people experienced in forensic accounting and what they wanted to see and where they felt Bitcoin was deficient and where it leaked metadata.
Then a bunch of PHD level people doing research into distributed database consensus algorithms and another group doing programming language research.
Then a lot of people from the deep darknet, anon, frog twitter and cipher punks and bitorrent communities. (really should be listed as two seperate groups). And people from the Russian darknet community. We have like eight Ivans. (edited)
I see Skycoin as essentially replacing TCP/IP and providing mesh network type functionality at the hardware level, Ark would run on top of it as a top level application layer.
Yes. The key functionality is two things - connecting to people by public key (networking) - distributing self validating, immutble data peer to peer (transactions, blocks etc... content addressible storage)
And you can build almost anything on those two building blocks. The whole internet will eventually be rewritten on top of those primitives and it will replace many of the existing protocols.
arc-over-water Who is the entity that is funding this? I think you have done 2 ICOs? How much did you receive? The first was 10c and the second was @ 50c per coin, released 6 million, is that correct?
samuelvihollandia Are you planning to enter a different exchange market soon?
arc-over-water Have you personally been in Sky from the start? What members have? Who allocates the ICO money etc... I hope you understand that decentralization with investment is a two edged sword, we invest in people but we cannot know these people.... So... we question.. (edited)
thrice.pi with all these outside parties that helped to build skycoin and bring it where it is today who are the main core team who will help to keep all these cool features running. Will these outside parties be recruited for the long haul?
Who is the entity that is funding this? I think you have done 2 ICOs? How much did you receive? The first was 10c and the second was @ 50c per coin, released 6 million, is that correct?
The people who funded the project for the first four years, were early bitcoin and deep crypto people; who were unhappy with the fact that Bitcoin and the other alts did not seem concerned about the core issues at all. They gave us over 1200 bitcoin I think, over several years and did not ask for anything in return.
The early Skycoin devs were doing academic research, architecture and new algorithms. Prototyping and simulation. The later stage people were more project managers and doing implementation.
We did four ICOs for small amounts, to fund development and to allow developers working on the project to buy in. The first ICO I remember was at $0.10 per coin and the price now is about $4.00 per coin, so its up ~35x or 40x, but when you consider the Bitcoin price going from $100 to $3000, the increase has not been so much. lol (edited)
arc-over-water With the price up 35x in about 1 year, is it not now time to cool the run up and release another ICO? At what amount of coins released and what procedure?
mike Would Intel Edison or Joule, or Samsung Artik 10 work well as a Skywire wireless node? They have 2 Gb-8 Gb RAM, 8-64 Gg eMMC storage, 802.11n wireless, bluetooth, and some with Zigbee?
Have you personally been in Sky from the start? What members have? Who allocates the ICO money etc... I hope you understand that decentralization with investment is a two edged sword, we invest in people but we cannot know these people.... So... we question.
I think there wer three different groups that merged together in first three years, that had similar objectives. Because the code was in different language. There was python, C code and then eventually golang and the golang code became the basis for the current codebase.
The way the coin allocations work, is that it requires unamimious consent for releasing coins and it has to be for a specific, ear marked purpose and can be blocked by any of the devs.
Then there is a pool of coins in bitcoin for various project managers to allocate. And that is an operational fund for paying developers, contractors, marketing etc. Then different people have different responsibilities.
Then we also have corporate funding and sponsorship and some companies paying our full time devs etc, which helps a lot.
arc-over-water Silicon Valley (TV SHOW) recently had their decentralized web running on a network or refrigerators? So i would guess, smart phones, smart gadgets? Home gadgets etc could add services and receive rewards from Sky?
mike best would be a totally open source and publicly audited manufactured system on a chip for the nodes to prevent any backdoors. Even chip designers now don't really know what they're putting into the chips since they just drag and drop black boxes known as IP cores into the ASIC designs.
With the price up 35x in about 1 year, is it not now time to cool the run up and release another ICO? At what amount of coins released and what procedure?
I think the Skycoin price has been doubling every 40 days, for as long as I can remember. However, it will still be years before it is in the top 20, its still a long way to climb. It took bitcoin years to go from 0 to $1, even though it was growing at 1% per day the whole time for six years.
best would be a totally open source and publicly audited manufactured system on a chip for the nodes to prevent any backdoors.
we are going to use arm
arc-over-water IOTA is also working on their own hardware for nodes etc, Trinary asset is JINN
synth all intel and AMD systems have remote management engine backdoors. So they are not safe for storing large amounts of coins.
We also have alpine linux and special version of linux, that is 6 MB and has everything that is needed for running our toolchain. It will not have any binary blobs in the kernel or anything that we cant compile from source. It does not have systemd and does not have gli, but uses musl. And does not have openssl.
mike so looks like the Samsung Artik 5 and 10 can run it no problem, they're ARM based. 25x35x4mm package for the Artik 10, Artik 5 is smaller, less powerful but has 2 separate antenna ports, nice for mesh networking with an omni and a directional antenna.
earlyarkinvestor how does Ark compare to Lisk?
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earlyarkinvestor isn't Lisk trying to achieve interoperability between blockchains as well
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mike nice! looks like an ARM based server rack
let me know if you need any help with it, see you're on solidworks, which I run as well.
synth this is the skycoin cluster; it has 8 CPU boards; 4 cores per CPU, 2 GB of ram per CPU and 64 bit ARM processor. Only one program will run on each individual board, so there is compartmentalization and a physical gap so that compromising one process on a system does no allow all other processes on the system to be compromised
mike looks like 2 ethernet ports per board.
synth and the hardware does not have the qualcom backdoors and is actually chinese equipment; and the backdoors are normally at the kernel level because they are not at hardware backdoors yet
mike do they have SATA ports, maybe M.2 for storage?
synth and we will hav an ARM openwrt router eventually too
this model does not have SATA, but we have a model with SATA; you could hook up 16 2 TB drives, lol and download half the piratebay to your cluster (edited)
the skycoin infrastructure is cluster based and designed for running across +300 computers, with one "node" deployed per computer. Eithe a CXO storage node, or a skywire SDN/meshnet node, or a VPN end point node or a consensus network, or skycoin node, etc. We have multiple node/application types.
so this is a "personal cloud' by itself
its not like StoreJ where you have other people storing your stuff; you are going to have ~5 clusters and 300 computers and can store your own files, on your own internet, on your own hardware. You do not need to go outside of your own network.
mike Have thought it'd be nice to have a board with an array of M.2 sockets to run SSD arrays without all the cables, have the busses shielded in circuit board.
synth yes, i think there will be m.2 eventually
these actually use a microSSD for storage, and its 48MB/s
mike any idea on the pricing on your ARM boards in quantity? We are looking at Intel for Bitseed V3, but ARM would be good to stay with, especially using your boards if there is SATA.
arc-over-water Do you have a general idea of usable functions to be released next in what order? The first release was the Coin and wallet, then the ICOs and can you give a general future with dates if you can
synth the boards are $30 each and the memory for solid state, is actually more than the the cost of the CPU/RAM/board now. Which is sort of insane.
mike so you have microSSD, what's maximum size? we shipping 1with Tb hard drives right now
synth Bitseed mike is going to help with this; so we can pool the boards and do a custom PCB
mike yes, that's where we see the price jumps, is in RAM and eMMC costs.
and it's hard to find low cost boards with SATA
synth try the orange pi
the price goes up 30% for SATA
mike yes, very nice specs.
synth eventually, we will make one that has custom PCB and is a pluggable blade server, I think.
mike I like the Samsung Artiks for the tiny form factor for drone routers, cubesat/picosat possibilities.
but like the fact that you are controlling much deeper down the supply chain with your boards.
synth we only need ram, CPU, then microSD slot; and that is it. so the wifi and all this other stuff is just crap and its junk. We only have communication, storage and computation. So should be minimialist.
submitted by Jarunik to ArkEcosystem [link] [comments]

Where can I find a tutorial for raspberry pi bitcoin ticker?

I have a raspberry pi and I would like for it to display current bitcoin price and current amount of bitcoins i have in cold storage. Would someone please be so kind to send me a link to a tutorial?
submitted by omnifecint to Bitcoin [link] [comments]

Almost lost > 1 BTC, learn with my errors.

So I started being a bitcoiner more or less 6 months ago. Before start buying it I read all the security guidelines and was very precautious.
I had a spare Rasp. Pi and used it as my poor version of Trezor, formating it with Raspbian and installing Electrum for signing transactions without it ever touching the web.
First I bought a little amount of bitcoins, 0.1 BTC to be more exact, and tested all the setup for a couple of days. Electrum asked me to write the mnemonic seeds, and it didn't seemed to me as a good idea to do so, as in my country it is very expensive to have a safe box and it would be a single point of failure. I also encrypted my wallet with a password so, if someone had access to the raspberry, this person could not sign transactions. It worked very fine and with time my confidence in the setup grew.
Then, in the next six months I started buying little ammounts of bitcoins frequently, reaching more than 1 BTC this month, sending it directly to the cold wallet. I also had a hot wallet with less than 40 mBTC, and started giving 1 mBTC to any friend with curiosity for bitcoin.
But then, this week, my hot wallet ran out of money buying the Argentina Movie (great movie, btw.), and I had to withdraw money from the cold wallet.
That's when the panic began. I could access my raspberry pi with success, but when it asked for the password I couldn't remember exactly what it was. I had done so many (safe) passwords for bitcoin, with lots of combinations of upper-case and lower-case, punctuation and other stuff, that I couldn't remember what I have chosen 6 months ago. I tried a couple of days with no success, and almost cried for losing almost 1 month of salary that way.
But then I remember that I had written the mnemonic and stored it hidden somewhere. I could find it and recover my wallet.
TL;DR; Done a pretty job trying to stay out of malwares, viruses, and thieves but forgot the password and my bitcoins were locked in. Recovered using mnemonics seeds.
Thx BTComrades
submitted by BTCtakeover to Bitcoin [link] [comments]

Proof of Shake: Zero Knowledge Private Key Generation within a secure enclave

I'm fascinated with Casascius coins and similar experiments with "physical" bitcoin wallets. Where it all breaks down is that it isn't trustless, as you need someone, the creator, to actually generate and hide the private key on the coin, under some tamper-resistant coating.
But what if you could devise some sort of physical object where the private key could be generated in a trustless fashion?
Here's my, perhaps, half-baked concept: I call it Proof of Shake: Cold Storage Wallet.
Within the sealed casing of the object, you have a series of tumblers that, when shaken, generates a private key. There's then a pin (like a grenade) that you pull out, to lock the tumblers in place, so that the private key is persistent. Maybe Buckyball-type magnets that flip on/off based on how they chain together and complete a circuit (binary private key generation). LED display on the exterior that shows the public key. Perhaps embedded raspberry PI. Perhaps eInk display, as it would not need continuous electricity.
Holographic seal covering a USB port that, when removed, would allow access to the private key stored in the secure enclave.
Proof of Shake wallets would allow secure, zero knowledge, off-blockchain transactions with confidence that the private key has never been exposed to anyone (assuming the holographic-seal has not been damaged).
If this could somehow be accomplished mechanically without electricity, even better. Perhaps a hand-crank to allow for a minimal amount of electricity to generate the public key from the private key.
Is any of this even remotely feasible, if at all possible? I don't know, but it doesn't seem impossible.
submitted by pizza-swiper to Bitcoin [link] [comments]

Create a Bitcoin Wallet on a Raspberry Pi Cold Storage - Armory & Raspberry Pi - YouTube Raspberry Pi printing Bitcoin paper wallet Pi Wallet - Secure hardware wallet

Digital Bitcoin Cold Storage on a Raspberry Pi visit Testing. Insert a USB stick. formatted to MS-DOS (FAT) (E.g. with mac disk utility) without spaces in the name. (E.g. "/media/CC-TEST", but not "Volumes/CC TEST") About. Bitcoin cold-storage on a raspberry pi Resources. Readme License. MIT License Releases No releases published. Contributors 2 . Languages. Ruby 57.2%; CSS 25.1 ... I really like the idea of using a rev. a raspberry pi board for cold storage -- no ethernet port to even risk trouble. The only problem is the initial setup and install of electum. View entire discussion ( 61 comments) More posts from the Bitcoin community. 2.4k. Posted by 3 days ago. 22% of all US Dollars were created in 2020. Let that sink in. 2.4k. 513 comments. share. save. hide. report. 1 ... Vorteile des Cold Storage Raspberry Pi Bitcoin Wallets: Deutlich günstiger als ein Hardware Wallet wie der Ledger Nano S. Du hast ein Cold Storage Wallet - das bedeutet, dass dein Private Key zu keinem Zeitpunkt vom Internet aus erreichbar und damit hackbar ist . Für wen eignet sich dieser Kurs: Alle, die bereits Grundlegendes über die Blockchain und Wallets wissen und über die ... Turn the raw processing power of your Raspberry Pi into cold hard cash with this awesome Raspberry Pi full Bitcoin node project. It was developed and shared by Howchoo's Tyler Jones just earlier ... linux raspberry-pi bitcoin paper-wallets cold-storage Updated Mar 3, 2020; Ruby; diginex ... Bitcoin storage solution that supports offline storage without the need to purchase specialized hardware. react-native bitcoin hardware-wallet bitcoin-wallet cold-storage cold-wallets Updated Sep 10, 2020; JavaScript; tyrelldev / ethdime Star 4 Code Issues Pull requests Ethereum x Opendime. Cash-like ...

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"Bitcoin Cold Storage - DIY" - Sean Logan

Raspberry Pi printing Bitcoin paper wallet - Duration: 0:52. ... How to create a paper wallet (cold storage) for Bitcoin, Dash, Litecoin etc. - Duration: 4:32. Cryptocurrency Edutainment ... Create your personal cold storage wallets easily. It supports: bitcoin, litecoin, dogecoin, namecoin, bip38 (password protected wallets), vanitygen. Powered by Raspberry PI, linux and a USB ... 15$ Bitcoin Cold Storage Wallet - Duration: 5:00. Kingcolex 38,510 views. 5:00. ... Raspberry Pi Bitcoin Mining For 12 Hours! - Duration: 8:27. Rasim Muratovic 435,086 views. 8:27 . Building a 3 ... Setting Up Bitcoin Fullnode on Raspberry Pi 2 - Bitcoin Core 0.12 - Duration: ... Intro to Paper Wallets & Cold Storage - Bitcoin Security & Fun with Sloppy Wallets - Duration: 26:57. CRI 110,917 ... Neste vídeo pretendo demonstrar uma forma de criar um ambiente offline seguro para armazenar chaves privadas de Bitcoin, baseado no Armory e com comunicação ...