CGMiner auf RaspberryPI mit GekkoScience Compac USB-Miner ...

(art project) a miner at the end of the universe

As an art project I want to set up a raspberry as a bitcoin miner with a twist: It will only mine when the difficulty factor is low enough to mine on a rpi, "a miner at the end of the universe" kinda idea. Obvious, it's hard to find much info about how to do this, any suggestions where to start?
submitted by RndDebris to BitcoinMining [link] [comments]

I'm trying to put together a list of what's coming out this year. Have this very simple list so far. Anyone care to add anything or suggest some better dates?

Latest News (most recent first) - Instant channels enable safe Lightning payments with unconfirmed funding Beta - Feb 10, 2019 - Voyager, New trading app from Uber & E-Trade execs announce launch date - Feb 9, 2019 - bumi/blockstream_satellite ruby gem for the Blockstream Satellite API - Feb 8, 2019 - New Zap Desktop 0.3.4 is out. New features, massive performance - Feb 8, 2019 - New release: @lightning desktop app v0.4.0-alpha - Feb 8, 2019 - valerio-vaccaro/Liquid-dashboard - Feb 7, 2019 - Japanese SBI Holdings will allow trading of coins - March 2019 - lnd v0.5.2-beta released - Feb 6, 2019 - Koala studios launches online LN gaming platform - Feb 6, 2019 - Independent Reserve has become the first #crypto exchange in Australia to be insured, with coverage underwritten by Lloyd's of London. - Feb 6, 2019 - Coinbase announces BTC support for their mobile (keep your own keys) wallet - Feb 6, 2019 - Blockstream published a new open source Proof of Reserves tool. - Feb 5, 2019 - RTL release v0.1.14-alpha - Feb 5, 2019 - dr-orlovsky/typhon-spec spec for new trestles side chain published - Feb 5, 2019 - Payment requests coming soon to BTCPay. - Feb 5th, 2019 - Kraken Acquires Futures Startup In Deal Worth At Least $100 Million - Feb 5th, 2019 - Next Blockchain cruise scheduled for June 9-13 - Feb 4, 2019 - Work on a GoTenna plugin to Electrum wallet in progress - Feb 4, 2019 - Bitcoin Candy Dispensers being open sourced - Feb 4, 2019 - New release of JoinMarket v0.5.3 - Feb 4, 2019 - Prime Trust won’t charge its clients to custody digital assets any longer. - Feb 4, 2019 - nodogsplash/nodogsplash wifi access using LN - Feb 3, 2019 - @tippin_me Receive tips using Lightning Network adds message feature - Feb 3, 2019 - Bitcoin-for-Taxes Bill in NH Unanimously Approved by House Subcommittee - Feb 3, 2019 - Full support for native segwit merged into bitcoinj - Feb 3, 2019 - Bitfury is partnering with financial services firm Final Frontier! - Feb 2, 2019 - Now you can open #LightningNetwork channels in @LightningJoule - Feb 2, 2019 - Integrating Blockstream’s Liquid payments on SideShift AI - Feb 1, 2019 - Wyoming legislature passes bill to recognize cryptocurrency as money - Feb 1, 2019 - Casa is open sourcing the code for the Casa Node - Feb 1, 2019 - Casa Browser Extension released - v0.5.2-beta-rc6 of lnd, full release getting very close now - Feb 1, 2019 - Tallycoin adds subscriptions and paywall features in bid to rival Patreon - Jan 31, 2019 - Static channel backup PR merged into LN - Jan 31, 2019 - The NYDFS grants another Bitlicense to ATM operator - Jan 31, 2019 - @pwuille currently proposing the “MiniScript” language to describe BTC output locking conditions for practical composition - Jan 31, 2019 - Fidelity is in the “final testing” phase for its new digital asset business - Jan 31, 2019 - Hardware wallet PR #109 just got merged so that @Trezor no longer requires user interaction for PIN - Jan 31, 2019 - CBOE, VanEck & SolidX filed a new & improved bitcoin ETF proposal. - Jan 31, 2019 - Casa Node code is now open sourced - Jan 31, 2019 - Next Bitoin halving in roughly 497 days - Jan 31, 2019 - BTCPay released 1.0.3.53 - Jan 31, 2019 - @binance now lets users purchase cryptos using Visa and Mastercard credit. - Jan 31, 2019 - Bitfury to Launch Bitcoin Operations in Paraguay - Jan 31, 2019 - Coinbase introduces very generous affiliate program - Jan 30, 2019 - DOJO Trusted Node bitcoin full node. Coming Early 2019 - Jan 30, 2019 - FastBitcoins.com Enables Cash-for-Bitcoin Exchange Via the Lightning Network - Jan 30, 2019 - TD Ameritrade says clients want cryptocurrency investment options - company plans major announcement in 'first half of 2019' - Jan 30, 2019 - Storage component of Fidelity's @DigitalAssets live, with some assets under management, @nikhileshde - Jan 29, 2019 - lightning mainnet has reached 600 BTC capacity - Jan 29, 2019 - Drivechain shows picture of Grin side chain and suggests might be ready in 2 month - Jan 29, 2019 - Lightning labs iOS neutrino wallet in testing stage now - Jan 29, 2019 - Aliant offering cryptocurrency processing free-of-charge - Jan 29, 2019 - Chainstone’s Regulator product to manage assets on the way - Jan 29, 2019 - Fidelity Investments’ new crypto custody service may officially launch in March. - Jan 29, 2019 - Gemini's becomes FIRST crypto EXCHANGE and CUSTODIAN to complete a SOC 2 Review by Deloitte - Jan 29, 2019 - Iran has lifted the ban on Bitcoin and cryptocurrency - Jan 29, 2019 - Confidential Transactions being added into Litecoin announcement - Jan 28, 2019 - http://FastBitcoins.com Enables Cash-for-Bitcoin Exchange Via the Lightning Network - Jan 28, 2019 - Germany’s largest online food delivery platform now accepts btc - Jan 27, 2019 - Launching a Bitcoin Developers School in Switzerland - Jan 27, 2019 - RTL release v0.1.13-alpha Lightning Build repository released - Jan 27, 2019 - The first pay-per-page fantasy novel available to Lightning Network. - Jan 27, 2019 - Numerous tools become available to write messages transmitted with Blockstream Satellite - Jan 26, 2019; - BTCPay 1.0.3.47 released - Jan 26,2019 - WordPress + WooCommerce + BTCPay Plugin is now live - Jan 25, 2019 - Juan Guaido has been promoting #Bitcoin since 2014 is new interim president of Venezuela - Jan 25, 2019 - Morgan Creek funds @RealBlocks - Jan 25, 2019 - Coinbase integrates TurboTax - Jan 25, 2019 - Robinhood received Bitlicense - Jan 25, 2019 - Anchor Labs launches custody - Jan 25, 2019 - NYSE Arca files w/ @BitwiseInvest for BTC ETF approval - Jan 25, 2019 - South Korea, Seoul, Busan & Jeju Island currently working to create pro crypto economic zones. - Jan 25, 2019 - valerio-vaccaro/Liquid-dashboard - Jan 25, 2019 - Bermuda to launch crypto friendly bank - Jan 25, 2019 - Mobile Bitcoin Wallet BRD Raises $15 Million, Plans for Expansion in Asia - Jan 25, 2019 - BullBitcoin rolling out alpha access of platform - Jan 25, 2019 - Electrum Wallet Release 3.3.3 - Jan 25, 2019 - Bitrefill, purchase Bitcoin and have it delivered directly over LN - Jan 25, 2019 - South Korean crypto exchange Bithumb looking to go public in USA - Jan 24, 2019 - Bitcoin Exchanges Don’t Need Money Transmitter Licenses in Pennsylvania - Jan 24, 2019 - US; New Hampshire Bill Aims to Legalize Bitcoin for State Payments in 2020 - Jan 24, 2019 - Robinhood, LibertyX Receive Licenses from New York Regulators - Jan 24, 2019 - Bakkt Bitcoin futures contract details released - Jan 24, 2019 - Blockstream CryptoFeed V3 now includes 30+ venues and 200M+ updates per day - Jan 24, 2019 - Binance Jersey – The Latest Binance European Exchange - Jan 2019
Commit Activity
Nodes and Market Dominance
Bitcoin
Financial
Lightning:
ASIC Miners:
Will update this section when I hear new developments
Wallets:
Hardware wallets:
LN
LN Apps:
LN Extensions / Launchers
LN Desktop wallets:
LN Mobile wallets:
LN Network:
LN Nodes:
LN Plugins:
LN Services:
Liquid Network
Rgulatory:
Exchanges:
Payments:
Please comment if you have any ideas on dates. Many of these dates are placeholders waiting for me to update. If you comment then I will update the post.
submitted by kolinHall to Bitcoin [link] [comments]

How To: Beginners Guide To Turn Your Raspberry Pi into an Affordable Bitcoin Mining Rig

How To: Beginners Guide To Turn Your Raspberry Pi into an Affordable Bitcoin Mining Rig submitted by pi_nerd to raspberry_pi [link] [comments]

NY SegWit2x signers can mine Bitcoin Cash without breaking their word (an open letter to miners)

This is my attempt of an open letter to the miners that signed the NY agreement in May and miners who think that SegWit2x is the saver way to scale on-chain.
I get the feeling that you see yourselves obligated to stick with SegWit2x and continue mining on its chain because you singed the Bitcoin Scaling Agreement at Consensus 2017.
You are not obligated to do so.
Here is what you signed to do:
Although it does not say so, it implies that this needs to happen on the bitcoin chain which has since transformed to the SegWit2x chain. But it does not say that you need to mine the SegWit2x chain indefinitely.
Nobody could expect from you to keep the miners running if it is not in your economic interest. You could just turn them off and nobody would say that you broke the agreement.
Switching to the Bitcoin Cash chain is the same. In a way you are shutting your miners on the SegWit2x chain off. You don't block SegWit activation and you don't block the 2x HF down the road.
Meaning you do not break the agreement or lose face in doing so.
You might want to stay on SegWit2x because of economic reasons. But you are not considering that the economy will follow the hashrate. Every BTC owner will own BCC. They will not lose any money if the majority hashpower will switch to Bitcoin Cash.
And in the long run Bitcoin Cash will give miners more profit then SegWit2x thus it is in your interest to switch.
When you signed the agreement in May I thought the SegWit and small blockers advocates would be happy. They got 100% of SegWit and we the big blockers made a huge compromise in going down from originally GB sized blocks with BIP101 to a mere 2MB with no additional increase in the future.
This was an appeasement towards the UASF and Core advocates and giving them way more weight and say than they should have received. Because it looks as if at many (if not on every) conference they are a minority.
But we immediately saw that it had no effect. UASF was going forward nevertheless and even now while having 100% of the blocks voting for SegWit they are still not happy and already plan the future without the 2x HF.
Unfortunately your appeasement did not work.
The SegWit2x path until the November HF will be full of hate, FUD, lies, etc.
I have seen the recent interview with Roger Ver. He looked tired, angry and disappointed. I understand him.
What I don't understand is why he (and maybe you) keep fighting an up hill battle against censorship and Core sheep on their terms when there is a way out.
By moving your hashpower to Bitcoin Cash you change the terms by
We had XT, Classic, BU and we got closer every time.
On August 1st we have ABC (giving us Bitcoin Cash) and it is time to break free.
Please move your hashpower to Bitcoin Cash and make bitcoin what it was always supposed to be. In return secure your future and profit with more on-chain transactions and fees then you will ever get with the proposed L2 road map and self-crippling soft fork upgrades.
Thank you!
edit: fixed the formatting and typos
submitted by torusJKL to btc [link] [comments]

Bitman Jihan Wu comment on buip055 proposal [proposes use BIP9/BIP135 instead of coinbase]

Recently there is rumor that Bitmain will support this BUIP. And Peter has pinged me in Slack. So I decided to give some comments on this BUIP.
First of all, hard fork is not purely technical but also political. The censorship, troll army like Dragonsden and privately paid news reporters are direct evidence that the hard fork is political. And the obsession with letting RPi be able to run full node is also another kind of politic. Any decision about a hard fork will need to consider both. Here I will not comment on the political side of this proposal but just the technical side.
This is a hard fork, which is a kind of changing in the consensus rules. Bitcoin protocol consensus rule changing has evolved a lot and has its best practice by now. In the early days, Satoshi N. was God. He could introduce consensus rule change arbitrarily. 1MB block size limited was introduced by adding the code without anyone else knowing about it, and today we are still in this trouble. Later, the community used coinbase voting. Gavin's and Luke's two different scheme of multi-sig were voted by coinbase. The most recently process of changing consensus is BIP9. It is the most reliable way to introduce a consensus rule change. So we would better to use such kind of process rather than going back to coinbase signalling methods.
BIP135 is an improvement of BIP9, which eliminated the 95% magical number. However, it is lack of reviewing and testing. I believe it worth the community the effort. After the BIP135 is mature, we can use BIP135 to introduce consensus rule change.
Flag day activation is dangerous. Human cannot predict the future. Human changes their minds constantly. Once such code released, miners may avoid running it at all, because miners are not sure about the readiness of other players.
We should use BIP9/135 to determine the forking block height. The signalling and the activation are both pre-coded and there is a higher confidence of the trustworthy of the signalling and the activation.
There is still re-org risk in such BUIP055. Bitcoin Unlimited follows the longest PoW accumulated chain. So if the big block chain happen first because majority of the hashing power support it, and then there will be two chains. (I will not comment whether it is good or bad to have two Bitcoin chains, or which chain is the better Bitcoin.) And if the small block chain is more profitable to mine due to either reducing in difficulty or higher exchange rate, and then there might be a risk that small block chain will have higher PoW accumulated, then BU will have to have to have a very large re-org. (Sorry, I have to add a political points here: the existence of such possibility will bring pressure on the exchange rate of the big block Bitcoin. If BU uses some very arbitrary methods to invalidate certain block, it will be very ugly.)
Since it is a very significant consensus rule change which has been debated for 4 years, we can add another consensus rule at and ONLY at the forking height, the size of the block HAS TO be bigger than 1,000,000 Byte. It is a very simple and straight forward way to protect re-org.
Conclusion: Bitmain has not decided to support this BUIP or not, but we have give some comments based on technical merits. We should use BIP9/BIP135 to signal and decide the forking height, and we should add a rule that at and only at the forking block, the size of that block HAS TO be larger than 1MB to prevent re-org. The technical comments should not be seen as an offer of supporting such BUIP.
https://bitco.in/forum/threads/buip055-increase-the-block-size-limit-at-a-fixed-block-height.2103/#post-38727 - orignal thread reply
submitted by tepmoc to btc [link] [comments]

PiMiner Raspberry Pi Bitcoin Miner

PiMiner Raspberry Pi Bitcoin Miner submitted by Handwired to Bitcoin [link] [comments]

Raspberry Pi Integration

Hey, /EtherMining,
I am currently looking for ideas for a project in my Computer Science class involving a Raspberry Pi. I figured crypto might be the right idea, since I already mine, but I'm unsure what I could possibly do with my Pi. I've already seen a few ideas online related to wallet storage but I'm curious if there's any "hidden" things I can do related to this. Have you guys had any success with a Raspberry Pi and your rig? Let me know.
submitted by Ryan_James_ to EtherMining [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]

Why you prevent the onchain scaling

To prevent the Bitcoin to OnChain Scaling just because you failure to realize its great
Introduction
The bitcoin net has been operating at full capacity for a long time. The appeal to upgrade of bitcoin agreements has been lasting for more than one year. However, some developers of Bitcoin Core for example have been repelling against such upgrade. The others had explained everything their worries. Despite that, they still don’t accept such upgrade. The public patience has been worn out by their stubbornness. Recently, the dispute about the bitcoin scaling has once again been put in the spotlight. This time both sides have directly shown their stance. I found that they refused the scaling just because they don’t know how great the bitcoin is.
Chapter Fear of fullnode will centralization just because they don’t think bitcoin is one great thing A motley crew cannot think out of the box. It is said that onchain scaling will increase the costs to operation bitcoin’s full nodes, thus resulting in the terrible centralization. These people have not yet realized that bitcoin is greatful enough to attract more people to operate its full nodes regardless of the costs. In their opinion, their income cannot cover costs of operating bitcoin’s full nodes, so they think others are at the same situation like theirs. I change a mobile phone every two years. If my mother finds it, she will be quite angry. She thinks there is no need for me to spend money on changing new phones, because she cannot understand the worthiness for me to spend money to buy the technical progress of mobile phones. If I tell my mother that I will spend 500 RMB buying an RPi, which consumes electricity day by day and creates no profits, to operate a bitcoin full node, my mother must call me a “black sheep.” The understanding of bitcoin of those fearing that bitcoin onchain scaling will lead to full node centralization is like the understanding of mobile phones of my mother. They cannot understand the great of bitcoin, so it is natural for them to think that bitcoin does not deserve so much money to be maintained without prospective profits. Another example is Lamborghini. As is known to all, Lamborghini is very expensive, whose price far exceeds the cost of its practical performance. It is apt to say that money spent on the car is fundamentally not for a “functional” purpose, but because it is “powerful” in some sense. This is similar to the operation of the complete bitcoin nodes. However, Lamborghini has buyers all over the world. Its expensiveness will not make it lose its customers. This is the so-called de-centralization. Cherry QQ is not that far behind Lamborghini in terms of performance. However, none think the former is “powerful,” so it can just be “centrally” distributed in China and looked down upon by others. When Nakamoto was mining alone, the operation cost of the full node was the lowest, but the bitcoin was the most centralized at that time. Bitcoin was not a great thing at that time but something inessential. When bitcoin becomes increasingly great and more and more people are attracted to join it, the absolute number of full nodes in operation will be increased instead of being decreased. The more great it is, the more decentralized it is.
Chapter 2 Fear of increasing powerfulness of bitcoin because of the need of maintaining high handling fees by the small block Due to the zero-sum game mentality, the poor always refuse cooperation and are stingy about stock. Those who want to filter some bitcoin users through formalities are worried that the bitcoin market might be fully saturated so that they get no way to join it. The best way to avoid this is to ban others from joining it. This is a typical zero-sum mentality. In fact, bitcoin is powerful enough to meet infinite demands. Anyone of the 7 billion people in the world that is willing to use bitcoin can get their demands satisfied by bitcoin net. The current network bandwidth, CPU capacity and stock cost are far enough to meet demands of bitcoin. The current market has the potential to provide more and better basic network services if necessary. Google can provide searching services for billions of users; WeChat allows billions of users to be on line simultaneously; AliPay handles tens of thousands of transactions every second. Bitcoin shares the same network basis and techniques with these companies Why does bitcoin have to be confined to seven transactions per second? Why is the 1M area restricted? Don’t set self-limits. We have the most advanced technology to turn out the best products. We need to equip ourselves with the most advanced ideas so that bitcoin can establish new rules and become more powerful. To stay in fear of losing and set self-limits—this is the mentality of the poor. They often avoid cooperating with others on some weird excuses, because they are worried that others might seize their share. A cooperative mind-set is open and willing to make use of all conditions to create wealth instead of confining people within a wall to scramble for stock. Bitcoin will not become cheaper because of more people using its. On the contrary, it will become more valuable according to the increment mentality.
Chapter 3 Fear of government intervention because of the coward-mentality of a group of evil-intended people Cowards are always hiding themselves in the dark corners. As is known to all, the bitcoin field is filled with hackers, drug traffickers and money launderers. These people are worried about government intervention, so they vehemently oppose scaling. They hope bitcoin can be confined to the TOR anonymous internet, because the fundamental service capability of TOR network is far weaker than the normal web. Therefore, the smaller the bitcoin block is, the better it is for them. They are ready to label them as “liberalists,” defining bitcoin as a free currency against the government violence. In fact, they are just a group of cowards with dark conspiracies. Bitcoin is a technical progress, social progress and a progress of the world. It offers people more chances to create greater fortunes. However, the group of cowards is not of the opinion. They think bitcoin should keep alive without serious ambition and be confined to a small anti-government crowd so that they can enjoy it in dark corners alone. In fact, governments are keeping up with the technical progress. Most governments in the world are friendly towards bitcoin. They are different from what is imagined by the cowards in the dark corners to oppose bitcoin. On the other hand, even if bitcoin’s block has set bigger and the government wants to eliminate it, but the government cannot make it. This is decided by the de-centralization nature of bitcoin, and the government cannot eliminate a de-centralized product. Now, 70% of bitcoin’s hash power are in China, and there have not yet been any signs that the Chinese government will wipe it out. How shameless you cowards refuse scaling on the excuse of government intervention. If the bitcoin is confined to Tor, it is nothing different from centralization. Then, the existing value of bitcoin disappears. How many people in this world want to live in the Tor network?!
Chapter 4 Fear of bitcoin will separation caused by hard fork because of having no confidence in bitcoin The weak are always in the fear of losing friends. Those saying no to bitcoin upgrade have another reason, that is, hard fork might result in bitcoin separation. If they want to maintain the whole bitcoin community, people of different ideas will be bounded in the same world. They are worried that some disputable upgrade of bitcoin will make bitcoin be separated into two kinds of chain. Bitcoin is open source. Anyone can make hard fork. Why can it remain vigorous and leading among so many competitors? Below are reasons: To most participants, to observe rules of bitcoin can bring more benefits than to damage them. The flourishing of bitcoin is attributed to an increasing number of people joining it and adhering to its rules for the sake of benefits. These participants include miners, users and core developers. They all abide by rules of bitcoin to earn profits. Their participation in the unprecedented social practice drives the development of bitcoin. Any potential hard fork might separate bitcoin into two chain with different rules. There might also be disagreement of benefits. A majority of participants, being interest-oriented, have to follow a major branch. Then, the other branch will either be instantly eliminated, or become an inessential existence, which is far from being powerful to threaten the major one. Those failing to realize the great of bitcoin will support a branch of bitcoin in the hope of getting more profits in the future. However, the prerequisite for they to do so is they must hold the branch bitcoin at no costs. In fact, it is fully achievable to coin holders, if the time cost is neglected. However, any service providers in the bitcoin economic ecological circle, including exchanges, mines, miner pool, should spend money in holding the branch bitcoin. These money have opportunity cost. If the money is invested in the genuine bitcoin, great profits will be created, far more than those brought by the rule-breaking bitcoin. Without links on the economic ecosphere, to hold the branch of bitcoin is meaningless, which is thus eliminated. On the contrary, those realizing the great of bitcoin know the only way to always get their share of profits is to create a larger interest community by attracting more people to join in it. Likewise, the strong never have to worry about having friends or not, because they will not lose friends because of their attitude or behaviors. They know real friendship should be built on an equal exchange relationship. As long as they are committed to improving and strengthening themselves, they will harvest more and more friends. However, the weak have fewer friends, so they are in greater fear of losing friends. In order to please their friends, they often have to accommodate themselves to them, thus being plunged to a weaker position. It is also the same to bitcoin. Only when bitcoin becomes more great will more people be attracted to join it instead of joining its other hard fork branches, such as LTC and ETH. As to those cowards who are blind to the great of bitcoin, hard fork is a good way to scare them away.
Chapter 5 Conclusions Why do you refuse onchain scaling? The most direct, simple and essential answer is: You are blind to the great of bitcoin, and you have neither confidence in bitcoin nor ambition for it. This article is written as a response to all of you who hinder upgrade of bitcoin. Bitcoin will not develop as you wish, because it is great enough.
(For the first time to read my article, please pay attention to my WeChat Official Accounts: 闪电HSL)
submitted by LightningHuang to btc [link] [comments]

Beaglebone Black as a Bitcoin Mining Controller

submitted by dsyncd to BeagleBone [link] [comments]

QUARKCHAIN: An offer we cant refuse.

QUARKCHAIN: An offer we cant refuse.
Is it just another Blockchain? Crypto Community is growing and so is the increasing demand for groundbreaking innovations. And we are sure that there is space for all projects in this crypto sphere , We dont need to compete each other, Blockchain is still young and everyone needs to coexist.
Quarkchain Details: It is the latest High-Capacity Peer-to-Peer Transactional system. Like others, It aims to make it mark in the Revolutionary Blockchain Technology. It also aims for an Anti-Centralized Horizontal Scalability Expansion. Quarkchaim will have 100000 +tps as compared to Bitcoin: 7 tps , Ethereum: 15 tps , And even Visa: 50000 tps.
Quarkchain Technology: 1. Two-Layered Blockchain: The fisrt layer will apply Elastic Sharding Blockchain, and, the Second layer will have the root blockchain which confirms the blocks from the shards.
  1. Cross Shard Transaction: It can be issued at any time and confirmed in minutes, and throughput increases linearly as number of shards increase.
  2. Horizontal scalability: A super-full node can be extremely expensive when TPS goes high, Quarkchain allows multiple honest nodes forming a cluster running as a super-full node.
Quarkchain Design Principle:
It is Based on the following principles; • Enhancing the scalability while guaranteeing security and decentralization. • ‎Enabling seamless cross-shard transaction for user quality of experience. • ‎Simple account management for clients. • ‎Open standard to support various dapps. • ‎Incentive driven eco-system.
Collaborative Mining: • Hash powers are incentivized to distribute evenly among shards. This ensures that all shards are mined evenly and thus the TPS increases as number of shards increases. • ‎The root chain will have over 50% of hash power of the network. This will precent double spending attack, and a malicious miner would need 50% * 50% = 25% power to perform an attack.
Transaction Fees: Since quarkchain has powerful transaction processing capability, the transaction fees will be very low. Transaction fees only can be paid by QKC.
Quarkchain Ecosystem: •Mobile Decentralized Applications •‎Minimum Viable products with Onchain fast evolution. •‎Demand oriented Business scenario. •‎Quarkchain for Internet of Things •‎Quarkchain for AI and Big data.
Development Team: Now lets focus on the development team which is the most important aspect to judge if they are capable enough to build such a groundbreaking innovative techonolgy,
The team consists of 9 members, with the following being the key members of the team:
~Founder- •Qi Zhou~ is an Software Engineer and expert in high performance systems. He is a former Googler and has 15+ years of development experience. Also has a PhD in electric and computer engineering.
~Software Engineer- • ZHAOGUANG WANG~ Expert in large scale distributed systems with 6 years work experience at Facebook and Google. Master in computer science from University of Michigan.
~Research Scientist- •XIAOLI MA~ Professor at Georgia Institute of Technology. PhD in electrical engineering and 7 years’ experience in the tech industry with the most recent being the CTO of Ratrix Technologies.
~Reasearch Scientist- •YAODONG YANG~ PhD in engineering, and a Tenure Track Professor at Xi'an Jiaotong University, and co-founder of Demo++ Technological Incubator.
~Research Scientist- •WENCEN WU~ Assistant Professor at RPI; PhD from Georgia Institute of Technology
~Marketing and Community- •ANTHURINE XIANG~ Graduate from SJTU & JHU; Combined background of finance and tech; 6 year experience in both Wall street and Silicon Valley
~Business Development and Eco-system- •TING DU~ Product management founder of incubator Demo++, incubated Ink; Dedicated on Blockchain productization and business development
Julianne Zhu
~Social Media Broadcasting- •JULIANNE ZHU~ Julianne has extensive BD Marketing experiences in both U.S and China. Julianne previous servers as branch manager for Roboterra Inc, which is a AI robotics company.
ADVISORS: • ARUN G PHADKE~ University Distinguished Professor, Virginia Tech; Fellow of National Academy of Engineering, USA. ‎ • ‎Bill Moore~ Distinguished Engineer at Sun Microsystems;Co-led the ZFS team and served as Chief Engineer for Storage at Sun Microsystems
•Mike Miller~ PhD Physicist width 100+publications; Founder: Cloudant (YCS08) acquired 2014 (IBM Cloud Data Services)
•Leo Wang~ Crypto Fund Manager. Invested in Over 50+ Project allover the world.Including: Ontology, ArcBlock, SmartMesh, Elastos, Penta, MedicalChain, AppCoin, BitGuild, Zeepin, Gifto, Iotex.
P.S: I am not a financial advisor, Please DYOR before investing. This post can be reffered to for Information purpose :)
submitted by CryptoTam123 to QuarkChain [link] [comments]

What should I use my Raspberry Pi 2 Model B for?

Hi everyone, and merry christmas.
I am in posession of a RPi 2 Model 2, which has been laying in my drawer for about a year now.
Originally I had planned to build a NES emulator, but got away from that idea. And it has been untouched ever since.
I need some ideas for what I could use it for....
I was thinking hardware VPN or maybe a little bitcoin miner (just for the fun of it). But I dont know if these projects makes any sense to do. I don't want to make a game emulator or a NAS.
What are you using your rpi for? And what projects are you looking to build in the future?
submitted by PessimisticKarma to raspberry_pi [link] [comments]

Raspberry Pi 3 - as computer with GPUs connected via USB Risers

The motivation for this post is that I've seen that people have used RPI with usb bitcoin miners or at least something of that sort. And I thought to myself would this be able to work with Ethos as a way of have a more energy efficient miner. I saw that a few posts have referenced the following thread on stack exchange:
https://raspberrypi.stackexchange.com/questions/12999/connect-a-gpu-into-raspberry-pi
I know that I would have to find a way to power the GPUs, but I was thinking using a server PSU such as described here:
https://www.reddit.com/EtherMining/comments/6cx30t/stop_wasting_your_money_on_expensive_powe
To get around the driver issues couldn't I install ethOS or find a way to make a distro of linux to work even if it's just CLI? The reason I am wondering is that I already have 3 RPI laying around that would be cool to repurpose as mining rigs. I also think it would be a cool learning experience. Thoughts and comments are more than appreciated! (:
submitted by Digitizkilla to EtherMining [link] [comments]

Zeus/Gaw ASIC Setup Guide for Linux/Raspberry Pi

So I recently I became quite interested in mining and cyptocurrencies in general. So interested in fact that I bit the bullet and decided to buy myself a GAW Fury.
I then spent some time doing research on how to set up a GAW or Zeus ASIC on Linux, in particular on a Raspberry Pi, and have found most guides to be awful. The reason they are so bad IMHO is that they assume quite a bit of prior knowledge, either with Linux or mining, and give very little instructions. So I have tried to put together a guide that requires very little prior knowledge.
It is my aim that anyone could get their shiny new asic up and mining in no time using this guide. Anyway, I present...

The Complete Noobs Guide to Setting Up a Zeus or Gaw ASIC on Debian/Ubuntu/Raspberry Pi

Resources

About Cyrptocurrencies and Their Jargon

If you are new to cryptocurrencies and how they work I suggest taking a look at this series of KhanAcademy videos. They are for Bitcoin but the theory is the same. I found them very helpful when it came to understanding what mining actually does and the mechanics of cyrptocurrencies.
Also take a look at sircamm22 his info found here, is great and breaks down a large number of concepts. I slightly disagree with no. 21 regarding preordering. Just exercise common sense.

Linux

If you are new to Linux you could follow along by simply typing in the commands. However I highly recommend taking the time to learn what you are doing. This course is a great place to start.

Computer Setup

By the end of this section you will have your device turned on, fully setup and connected to the internet with.
Note: Commands to be typed into the command line will be displayed like this:
echo Hello World

Desktop/Laptop

For laptops and desktops already running Ubuntu or Debian I will assume you have setup your internet setup as part of the installation.
If not: There are plenty of guides out there and the installation/setup process is very easy. A good place to start for Ubuntu is here.
Now open up a terminal window. Ctrl + alt + t on a standard Ubuntu installation.
If you plan on using this PC without a monitor I would suggest installing an SSH Server.
These commands will be discussed later on in the guide.
sudo apt-get -y install openssh-server
sudo service openssh-server start

Raspberry Pi

The Raspberry Pi Foundation has put together a great guide in PDF format.
Use NOOBS it will save you a lot of trouble. NB: Some SD cards don't support NOOBs but will work fine if the image is put on using a different method.
Here is a great guide for setting up the Raspberry Pi SD card from Elinux.org. In fact it's a great place to start for anything RPi related. Raspberry Pi hub at Elinux.
Once the SD card is setup you will need to insert it into the Raspberry Pi and boot. Install Raspbian from the NOOBs menu and wait.
Follow this guide by Adafruit for first time setup. You will need to enable SSH Server.
I suggest not starting the desktop on boot. It can be easily run from the command line by typing startx.
Follow this guide by Adafruit to setup your network. Found here. No need to do this if you set up previously in the first time config.
We will also at this point want to setup ssh. Again I will point you to an Adafruit guide.
Once done exit back to a standard command line interface. This can be done in LXDE by using the power off menu located in the bottom right corner.

Miner Setup

Installing BFGMiner

If you want to the Raspberry Pi or PC without a monitor go ahead and SSH into your device.
So now you should be staring at a command line interface whether on the device with a monitor or via SSH.
First things first lets make sure we are all up to date. This will update our package list from the repositories and upgrade them to the newest version. "-y" Will simply say yes to any prompts.
sudo apt-get update && sudo apt-get -y upgrade
We are going to need to install some useful tools. Git-core is how we will clone and download BFGMiner from GitHub and Screen allows multiple command line instances and means if we exit out of ssh session or quit Terminal on Ubuntu, BFGMiner will continue to run.
sudo apt-get install git-core screen
We also need to download some other tools/dependencies to ensure that BFGMiner will compile successfully.
sudo apt-get -y install build-essential autoconf automake libtool pkg-config libcurl4-gnutls-dev libjansson-dev uthash-dev libncursesw5-dev libudev-dev libusb-1.0-0-dev libevent-dev libmicrohttpd-dev libc-bin
Ok now change into your home directory.
cd ~
And clone BFGMiner by Darkwinde.
git clone https://github.com/Darkwinde/bfgminer.git
Once the download has completed move into the bfgminer directory.
cd bfgminer
The following steps may take a while.
Now run autogen.sh
sudo ./autogen.sh
You will need to make the configure script execuitable.
sudo chmod +x ./configure
Now configure bfgminer
sudo ./configure CFLAGS="-O3" --enable-scrypt
Now lets make!
sudo make
Install BFGMiner
sudo make install
One more thing...
sudo ldconfig

Running BFGMiner

If you haven't already plug in your ASIC.
Just confirm your system is recognising the ASIC.
lsusb
Its output should look similar to this (no need to type this in):
Bus 001 Device 005: ID 10c4:ea60 Cygnal Integrated Products, Inc. CP210x UART Bridge / myAVR mySmartUSB light
Yep there it is our ASIC listed as device 005. There is no need to install any drivers, unlike in windows, as they come in the kernel.
Now lets actually start BFGMiner.
You will want to start a screen session to ensure BFGMiner doesn't quite when you exit.
"-S" is the option for starting a new screen session. You can replace "miner" with anything you like.
screen -S miner
Now you can run the commands below.
Here is a sample of what you should type. You will need to replace somethings with your own values.
sudo bfgminer --scrypt -o stratum+tcp://URL:PORT -u USERNAME -p PASSWORD --zeus-cc CHIPCOUNT --zeus-clk 328 -S zeus:/dev/ttyUSB0
Where:
URL:PORT is the address and port of the pool you wih to use. Now I won't suggest a pool. I will leave that decision up to you. If you do wish to mine DOGE take a look at this site for a list of pools and comparisons.
USERNAME this is the username you use on the pool. Every pool is different. Check your pool's website for details. PASSWORD same as above. Specific to your pool, not every pool requires one.
CHIPCOUNT this is specific to which ASIC you are using.
For GAWMiner ASIC's:
  • War Machine: 256
  • Falcon: 128
  • Black Widow: 64
  • Fury: 6
For ZeusMiner ASIC's:
  • Blizzard: 6
  • Cyclone: 96
  • Hurricane X2: 48
  • Hurricane X3: 64
  • Thunder X2: 96
  • Thunder X3: 128
Now to make sure you don't stop mining when you exit ssh or terminal. Press:
ctrl + a + d
To come back to the BFGMiner screen simply run:
screen -r miner
You're done!!

Start on Boot

First off you will want to make sure you have BFGMiner running correctly. Ensure you have the miners set up properly and your pool correctly configured.
Start a BFGMiner instance, detailed above.
Once the instance has started and you are happy with how everything is working press "s" on your keyboard to enter the settings menu.
Now press the "w" key. Don't press enter. We want to specify where our config will go. Type:
/home/USERNAME/bfgminer.conf
Substitute USERNAME for your user. On a standard RPI install its pi. On ubuntu it's what you set during the instillation.
Now press the enter key to return back to the main BFGMiner screen. Press "q" on your keyboard to exit BFGMiner. You should now be back in the command line.
Now we want to edit a file called rc.local. Any commands in this file will be executed on boot.
sudo nano /etc/rc.local
Depending on your system this file may already contain some commands. Be careful not to delete them.
After the last command and before "exit 0" type the following on one line:
sudo -u USERNAME screen -d -m sudo bfgminer --config /home/USERNAME/bfgminer.conf
Where USERNAME = your username
Hit ctrl + x then y to save and exit nano.
The above command will create a new screen session and run bfgminer using the config we created earlier. All while as our username so that we can easily reattach.
Lets reboot to ensure it is working correctly:
sudo reboot
Once rebooted and logged in, show all running screen sessions:
screen -ls
Reattach to the session. You only need to use the numbers before the first dot.
e.g Mine looks like: 2480..hostname (13/07/14 12:02:09) (Detached). So I type:
screen -r 2480
Verify everything worked as expected. Then ctrl + a + d to exit.
You have now setup BFGMiner to restart on reboot.

Power Failure

If you are using a Raspberry Pi and it loses power it will automatically reboot on receiving power again.
For standard desktop PCs there is an option in some BIOS/UEFI to turn the computer on when it receives power. Consult your motherboard's manual and manufacturer's website.

Sources

Here is where I got my info from.
And of course /dogemining

Wrap Up

Congrats you've done it. You have managed to successfully get your shiny new asic mining away.
I do plan to make another guide detailing how to setup and use StarMiner a ready to go RPi mining distro.
So I hope this is helpful for you guys. I have seen lots of posts asking the exact same questions again and again and I have tried to answer these as best I can. I am still learning about this stuff so if there is something I have missed or a mistake I have made please tell me.
Anyway good luck. And I'll see you at the moon.
Cheers Frogsiedoodle
Edit 1: Layout and formatting.
Edit 2: Added instructions for screen which I initially forgot.
Edit 3: Removed 1 unneeded dependency
Edit 4: Added section on start on reboot and power failure.
submitted by Frogsiedoodle to dogemining [link] [comments]

Opportunity of lifetime- Invest in Quarkchain

Opportunity of a lifetime: If you have enough money to buy a car, buy bitcoin instead and take the bus for 8 months. You will be playing in six figures $$$. Better still, if you invest it into Quarkchain ICO, you will be millionaire in that time. If you are too scared to venture into crypto, then give Quarkchain a shot, as the revolutionary product and social media hype will produce the winner in the cryptocurrency race. 8 months down the line, you will look at this article and exclaim.
Prime property of blockchain is its decentralised nature. This gives rise to security and scalability. In perfect blockchain ecosystem, it will consist of decentralised nodes, providing security and at scale where it can be applied to real world problems. However, there is trade off between:
Decentralisation Security Scalability
An attempt to increase in scalability requires compromise on decentralisation, the uderlying concept of blockchain itself. Quarkchain is an innovative new blockchain ecosystem which will attempt to solve this trade off and offer highly decentralised and secure blockchain on a big scale such that it would meet the global commercial requirements.
Quarchain will solve this by offering two-layered blockhain: First layer is composed of elastic sharding blockchain called shards, which are confirmed by a root blockchain which is the second layer.
Quarkchain will allow horizontal scalability by allowing standalone nodes to work together forming a cluster, replacing expensive super full nodes, resulting in high transaction per second (TPS), at low cost.
Blockchain will be secured by network of market driven miners who will ensure the security of all transactions. The incentives will be offered in such a way that at least fifty percent of the hash power will be directed towards root chain to prevent double spending attack on any transaction.
Quarkchain also offers simple account management by requiring only one account for all the shards. This will be done by a smart wallet which will store all cryptocurrencies from different shards. Quarkchain nework will also support turing complete smart contracts. Adoption of Ethereum Virtual Machine (EVM) will allow easy migration of existing EVM DAPPS onto Quarkchain network.
Quarkchain Team:
Qi Zhou, PhD is an expert in high performance systems. He is a former Googler with 15+ years of development experience.
Zhaoguang Wang is an expert in large scale distributed systems with 6 years work experience at Facebook and Google.
Xiaoli Ma is a Professor at GeogiaTech and an IEEE fellow.
Yaodong Yang is Research Scientist, Prof. at XJTU & Cofounder of Demo++
Wencen Wu is Research Scientist, Assistant Professor at RPI
Ting Du is in Business Development and Eco-system, Founder of Demo++
Anthurine Xiang is in Marketing and Community, Extensive experience in startup
Roadmap
Q2 2018 — Testnet 0.1 along with Wallet 0.1 (10K+ tps).
Q3 2018 — Testnet 0.2.
Q4 2018 — QuarkChain Core 1.0, Mainnet 1.0, Smart Wallet 1.0 (100K+ tps).
Q2 2019 — QuarkChain Core 2.0, Smart Wallet 2.0 (1M+ tps).
Quarkchain Contact
Website:www.quarkchain.io
Twitter: https://twitter.com/Quark_Chain
Telegram: https://t.me/quarkchain (EN)
submitted by maryamcrypto to u/maryamcrypto [link] [comments]

ICO Quarkchain Review 1million TPS

Blockchain 1.0: Bitcoin 4 transactions per second
Blockchain 2.0: Ethereum 10 transactions per second
Today I bring to you,
Blockchain 3.0: Quarkchain 1,000,000 transacions per second
Quarkchain, this is the beginning of new era. Adoption of cryptocurrency and the blockchain transactions by the real world economy is going to be made possible by Quarkchain’s high throughput.
Quarkchain aims to scale to 1 million transactions per second without compromising on security and decentralisation nature of blockchain.
An attempt to increase in scalability requires compromise on decentralisation, the uderlying concept of blockchain itself. Quarkchain is an innovative new blockchain ecosystem which will attempt to solve this trade off and offer highly decentralised and secure blockchain on a big scale such that it would meet the global commercial requirements.
Quarchain will solve this by offering two-layered blockhain: First layer is composed of elastic sharding blockchain called shards, which are confirmed by a root blockchain which is the second layer.
Quarkchain will allow horizontal scalability by allowing standalone nodes to work together forming a cluster, replacing expensive super full nodes, resulting in high transaction per second (TPS), at low cost.
Blockchain will be secured by network of market driven miners who will ensure the security of all transactions. The incentives will be offered in such a way that at least fifty percent of the hash power will be directed towards root chain to prevent double spending attack on any transaction.
Quarkchain also offers simple account management by requiring only one account for all the shards. This will be done by a smart wallet which will store all cryptocurrencies from different shards. Quarkchain nework will also support turing complete smart contracts. Adoption of Ethereum Virtual Machine (EVM) will allow easy migration of existing EVM DAPPS onto Quarkchain network.
Quarkchain Team:
Qi Zhou, PhD is an expert in high performance systems. He is a former Googler with 15+ years of development experience.
Zhaoguang Wang is an expert in large scale distributed systems with 6 years work experience at Facebook and Google.
Xiaoli Ma is a Professor at GeogiaTech and an IEEE fellow.
Yaodong Yang is Research Scientist, Prof. at XJTU & Cofounder of Demo++
Wencen Wu is Research Scientist, Assistant Professor at RPI
Ting Du is in Business Development and Eco-system, Founder of Demo++
Anthurine Xiang is in Marketing and Community, Extensive experience in startup
Roadmap
Q2 2018 — Testnet 0.1 along with Wallet 0.1 (10K+ tps).
Q3 2018 — Testnet 0.2.
Q4 2018 — QuarkChain Core 1.0, Mainnet 1.0, Smart Wallet 1.0 (100K+ tps).
Q2 2019 — QuarkChain Core 2.0, Smart Wallet 2.0 (1M+ tps).
Quarkchain Contact
Website:www.quarkchain.io
Twitter: https://twitter.com/Quark_Chain
Telegram: https://t.me/quarkchain (EN)
TG Announcement Chanel: https://t.me/QuarkChain_News
Medium: https://medium.com/@quark_30920
Facebook: https://www.facebook.com/quarkchain.quark.5
Weibo:http://weibo.com/6527041117/profile
Whitepaper: https://www.quarkchain.io/quark.pdf
GitHub: https://github.com/QuarkChain
Watch this space and witness the adoption of cryptocurrencies by the mainstream economy. #Quarkchain
submitted by MuhammadSulemanC to u/MuhammadSulemanC [link] [comments]

SWOT Analysis & Review of QuarkChain

QuarkChain — SWOT Analysis & Review

Overview

Quarkchain is a high throughput blockchain which aims to provide a decentralised, secure and scalable ecosystem through its 2 layered blockchain and elastic sharding principle.The incentive structure unlike other blockchains will be determined by collaborative mining and account management on shards will be made easy by a smart wallet ecosystem.

Comparison and Evolution

The current and past generation of blockchains viz Ethereum and Blockchain provide a decentralized and secure system but are not scalable enough to handle large volume of transactions.Bitcoin carries out 1–3 transactions per second(tps) whereas ethereum carries out 20 tps. On the other hand centralised institutions like VISA can carry 56000 tps. Clearly, if blockchain is to disrupt the existing centralized financial systems than they must be scalable enough to handle high volume of transactions.The applications of blockchain is not limited to financial sector but also in Big Data and AI. Hence, this warrants the need of a blockchain which processes transaction at a much higher rate.QuarkChain proposes to overcome the scalability issue by adopting the principle of elastics sharding and achieve transactions greater than 1 million TPS. It will use Ethereum Virtual Machine for providing a smart contract language platform. This would also enable existing applications on Ethereum to use QuarkChain’s ecosystem.

Features

1. QuarkChain will provide a 2 layered blockchain system viz, rootchain and shards. Shards are group of nodes that carry out a small subset of all the proposed transactions at any given time. So as the number of shards increases the system will be capable of performing more transactions. The root chain will confirm the transactions proposed by every shard.The total hashpower in the system will be distributed between the rootchain and shards. At any given time more than 50% of the hash power will be alloted to the rootchain. In order to carry out a double spend attack the hashpower required will be 50%*50% = 25% of the total hashpower.
  1. PoW consensus algorithm will be used for validating transactions similar to Ethereum and Bitcoin.The incentives for each node will be determined using collaborative mining. This will ensure that weak miners get fair share of rewards in a timely manner unlike traditional systems where a weak miner is forced to join a mining pool to get rewards in a timely manner.
  2. There are no masternodes but a group of nodes can form a cluster which will be termed as super nodes.These supernodes will avoid the need for the huge hardware and bandwidth requirements if each node were to act as a super node. Also, each node will not have to validate all the transactions unlike ethereum or bitcoin but a subset of chains.
  3. A smart wallet interface will be provided to mange wallet addresses, since sharding requires the creation of multiple addresses.In shard and cross shard transactions can be carried out swiftly form few seconds to few minutes. and the smart wallet will manage funds transfer between the addresses of same user at the backend.
  4. Onchain and Offchain transactions can also be carried out.Network will support smart contract via EVM.
  5. Mobile applications can also be hosted. Live testing of apps can be done on mainnet and the feedback loop system will ensure that testing and modifications can be made swiftly.

SWOT Analysis

Strengths
1.Achieved a speed of 2000 tps on closed testnet.
  1. Strong team with devs/techs having past work experiences from Google and Facebook and academicians from top tier universities.
  2. Use of EVM and Solidity will enable existing Ethereum dApps to be hosted on QuarkChain network
Weakness
  1. No partnerships announced yet
  2. According to the development roadmap ,no projects will be announced till a high testnet speed(10,000 tps) is achieved
Opportunities1. Scalability is an issue that is being tackled with by proposing solutions like state channel networks(Raiden and Trinity) or technologies like sharding.
  1. The only new project based on sharding is Zilliqa but it will not support existing dapps on ethereum because it is proposing a new smart contract language Scilla. If ethereum does not achieves scalability through casper than we may observe a migration of these dapps to quarkchain.
Threats
  1. Ethereum (Casper Protocol)- Ethereum has developed Casper Protocol which will implement sharding and is claiming to be functional by the next quarter
  2. Zilliqa- Zilliqa has also achieved 2500 tps on testnet(already released) and planning to launch mainnet by the next quarter.

Team

QiZhou(Founder) - ex Google ,15+ years development experience,PhD-Georgia Institute of Technology
ZhaoGuang Wang(Senior Software Engineer)-ex-Facebook and Google, 6 years experience,MS in CS -University of Michigan.
Xiaoli Ma (Research Scientist)-Full Professor at Georgia Tech,IEEE Fellow
Yaodong Yang (Research Scientist)-Professor at Xianjiao Tong University.,Partner of Demo++,PhD-Virginia Tech
Wencen Wu (Research Scientist)-Assistant Professor at RPI,PhD-Georgia Institute of Technology

Token

Total Supply — 10 bn ICO — 20% (20 million to be raised) Incentives,Rewards,Marketing — 45% Team — 15% Founders — 15% Advisors — 5%
Team, Founders and Advisors will have a vesting period of 2 years

Conclusion

This project possesses a solid team with relevant experience, well defined objectives, low hardcap and has generated a lot of hype.The platform will see huge adoption even if they replicate the achieved tps on mainnet. A low hardcap and huge hype will ensure good RoI for investors since 80% has been raised from private sale and only 20% is available for crowdsale and hence there will be a lot of unmet demand.Closest competitor(project wise) is Zilliqa and has a market cap of 1.3 billion USD after 3 months of testnet release.Investment for short term or long term will be beneficial.
submitted by van1264 to ico [link] [comments]

QuarkChain Detailed Review

Topics —
  1. What is Quarkchain?
  2. How is QuarkChain different from Bitcoin and Ethereum?
  3. What are the main features and how will it provide security,scalability and decentralization?
  4. How different are QuarkChain and Zilliqa?
  5. What are the use cases and business development plans?
  6. How strong is the team?
  7. What is the verdict?
What is Quarkchain?
Quarkchain is a high throughput fast, efficient ,secure and decentralized high throughput blockchain ecosystem. The main features of the system are:
  1. Reshardable two layered blockchain enabled with cross shard transactions
  2. On chain and Off Chain transaction system
  3. Market Driven Collaborative Mining to determine incentives for validating transactions.
  4. Simple account management made possible with smart wallet systems
  5. Decentralized horizontal scalability here TPS increases with the number of nodes
  6. Turing Complete Smart Contract Platform on Ethereum Virtual Machine (EVM) which can enable existing Dapps on Ethereum blockchain to use Quarkchain’s ecosystem.
How is QuarkChain different from Bitcoin and Ethereum?
Bitcoin belongs to the first generation of Blockchain which provided ecosystem for trustless P2P transactions. Ethereum belongs to the second generation of Blockchain system which not only provided an ecosystem for transactions but also creation of financial instruments like loans or bonds using “smart contracts”.
The current generation of blockchain or any other financial ecosystem aims to provide a secure,scalable and decentralized ecosystem. However, while achieving any of the two aforementioned objective they have to compromise with the third.
A secure and scalable transactional system which has 50k+TPS like VISA is centralized, whereas ethereum has 10–30 TPS but is not scalable enough to provide fast transactions. QuarkChain with its sharding ,cross-sharding and collaborative mining based incentive feature aims to achieve all the three objectives.
What are the main features and how will it provide security,scalability and decentralization?
  1. 2 layered blockchain system — There are 2 layers in the blockchain , the first layer is an elastic sharding blockchain also known as shards are mini blockchains that carry out a sub set of transactions . As the number of shards increases the transaction speed also increases thus making it more scalable. The second layer is rootchain with a strong difficulty that confirms all the transactions proposed by the shards.
  2. Consensus Algorithm — The rootchain follows POW consensus algorithm whereas the shards have a rootchain first POW consensus algorithm where each shard looks for longest rootchain and then performs transactions.The mining time of rootchain will be several minutes whereas that of the shards will be several seconds.
  3. Single to Multiple Blockchain — QuarckChain can transform from single to multiple blockchain depending upon the layer at which the hashpower is concentrated. If all the hash power is concentrated at the root chain then it becomes a single blockchain, on the contrary if alll the hash power is concentrated in the second layer, the ecosystem will function as multiple blockchain. A single or multiple independent blockchain has no advantage over the traditional ecosystems and hence 50% of the haspower needs to be assigned to the rootchain.
  4. Collaborative Mining — The incentive system of quarkchain is built on the principle of game theory and hash powers are incentivized evenly among the shards. The system follows an open economic model where a miner can chose the shard depending upon the hashpower. Since, 50% of the hashpower will be on root chain around 25% would be needed to launch a double spending attack.
  5. Decentralization — Every node has to fully validate all the transactions which necessitates the use of hardwares with enormous capacity thus allowing centalization. A super node (similar to a master node) can be created by a group of honest nodes, thus avoiding centralization and empowering a weak miner to collect rewards in a timely manner thus improving throughput.
  6. Multiple Wallets — Each shard and the rootchain in the ecosystem function as a separate blockchain, a single user will own multiple addresses,one in each shard, the address in the default shard is known as primary address and the address in the rest of the shards is known as secondary address.
  7. 2 Categories of transactions — There are two categories of transactions namely in-shard transaction and cross shard. In shard transactions are transactions where the sender and receiver addresses are located in the same shard and cross shard transactions are transactions where sender and receiver addresses are located in 2 different shards. In shard transactions will take several seconds for confirmation while cross shard transactions will take minutes.
  8. Multiple accounts management with Smart Wallet — To ensure in shard and cross shard transactions. The balance of user will be reflected in the primary address and in the event of a transaction will be automatically transferred to secondary addresses and any remaining amount will be transferred back to the primary address of the owner. A smart wallet system will ensure that such transactions takes place automatic without any manual intervention. The Smart Wallet system will act as an interface for user to simplify the process.
How different are QuarkChain and Zilliqa?
  1. QuarkChain is Turing Complete whereas Zilliqa is not. A Turing Complete Language can enable coding of loops and hence ensure faster execution of complex smart contracts. The computations required to execute a complex smart contract language in Zilliqa will be exponentially more than what is required to execute in QuarkChain.
  2. QuarkChain will support smart contracts on EVM , thus enabling existing dapps on Ethereum to use QuarkChain’s ecosystem. Zilliqa is developing its own smart contract language called Scilla, which is also in development phase. An existing dApp on Ethereum can easily transition to QuarkChain unlike Zilliqa where the entire dApp has to be recoded.
  3. No cross shard transactions are possible in zilliqa and there is no system of multiple wallets.
What are the use cases and business development plans?
  1. Mobile dApps- It will provide robust infrastructure and technology for creating mobile based apps for social network, gaming, online storage and sharing economy.
  2. OSS for startups — Can serve as one stop solution for development needs of blockchain solutions by providing services at low cost
  3. MVP with Fast Onchain Evolution — It will allow developers to deploy and test apps on the mainnet and through the use of it fast ecosystem and feedback loops, performance of apps can be improved at scale.
  4. IOT & AI — Blockchain based IOT and AI applications need high throughput ecosystems to perform computationally intensive tasks. Quarkchain can provide fast and efficient ecosystem to such applications.
  5. Improvisation using AI— AI will be used to create new economic models for incentive structure in QuarkChain ecosystem.Reinforcement learning can help in developing an efficient ecosystem depending on the transaction behaviour of users.
What are the token metrics?
Total Supply — 10 billion Token Sale — 2 billion(20%) Reward,Community Incentives and Marketing — 4.5billion(45%) Team- 1.5 billion(15%) Foundation — 1.5 billion(15%) Advisors — 0.5 billion(5%) HardCap — 20 million
The token metrics are decent , 65% of the tokens will be used for token sale, marketing and rewards. Remaining 35% have a vesting period of 2 years and will be retained by team, foundation and advisors. The hardcap is very low in comparison with other recently funded blockchain projects like Fusion,Elastos. The total Market cap on 100% dilution is 100million .
How strong is the team?
QuarkChain possesses a strong team(ex Google and Facebook, distinguished academicians) having prior experience in Blockchain development,signal processing and Large Scale distributed Sytems.
QiZhou/ Founder -Expert in high~performance systems Former Googler and have 15+ years development experience PhD from Georgia Institute of Technology
ZhaoGuang Wang / Senior Software Engineer-Expert in large scale distributed systems with 6 years work experience at Facebook and Google Build systems capable of processing millions of queries per second. Master in computer science from University of Michigan.
Xiaoli Ma / Research Scientist-Full Professor at Georgia Tech IEEE Fellow Expert in signal processing for wireless systems, big data, I0T
Yaodong Yang / Research Scientist-Professor at Xianjiao Tong Univ. Partner of Demo++ PhD from Virginia Tech Dedicated on Blockchain development and research
Wencen Wu / Research Scientist-Assistant Professor at RPI Expert in model simulation and verification in distributed autonomous systems PhD from Georgia Institute of Technology
What is the verdict?
Idea — 9.5/10
Whitepaper — 8.5/10
Team — 9.5/10
Token Metrics — 9/10
Overall, the project has strong fundamentals and proposes a novel method to overcome the hurdles posed by existing Blockchains. The credentials of the team also instills more faith in the potential required to execute the idea.
The competitors are strong in terms of Ethereum and Zilliqa. Ethereum is in the process of implementing sharding, however it is a long road till it is fully implemented.
Zilliqa also uses sharding technology to improve scalability and have launched their testnet.At the time of writing Ethereum sits at 72bn and Zilliqa at 1bn in terms of MarketCap.Being a blockchain project, the scope for the token price to grow is exponential.
Final Verdict — 9.125/10
submitted by sinaki003 to ico [link] [comments]

Trying to set up RPi to mine bitcoin using Block Erupters, but nothing seems to be working correctly

Hey guys, so I'm trying to use my RPi (B+ model) to set up a rudimentary bitcoin mining rig, but nothing seems to work correctly. I've tried using cgminer on Raspbian Jessie, but cgminer seems to refuse to use the miner. Nothing shows up when I check my hash rate on Slushpool's website, the current pool I'm using. I have another microSD that I set up with minepeon, but every time I try to plug in my Block erupter (which is a dualminer Litecoin/Bitcoin miner), it keeps telling me that I don't have permissions to access the USB port that they are plugged into. I've googled various things and I keep getting closer to it actually working, but it still isn't showing any hash rate. Anyone tried something similar and had problems?
tl;dr: Using RPi B+ to mine via ASIC block erupters, both with Raspbian Jessie and cgminer, and with minepeon, neither work correctly. Help?
submitted by rushberushing to BitcoinMining [link] [comments]

Raspberry Pi 3 model B for Bitmining?

Hello! I am asking for a RPi 3 model B for Christmas and will be using it for smaller thing like as a static domain for creating Python API bots but I want to make more use of it. Was thinking maybe turn it into a bitcoin miner if possible. If anyone else is doing this, any tips or suggestions on what I need as far as add-ons and starting up?
submitted by Koof99 to BitcoinMining [link] [comments]

An afterthought on the effects of larger blocks on nodes

I've been trying my best to keep up with the bulk of news and progression of the entire block scaling debate/issue since it started ramping up around 2015. I've seen a few key 'arguments' about the potential implications of larger blocks, and methods that can be utilized to implement changes to Bitcoin.
Of these arguments, the two that have recently stuck out to me are:
1. Big blocks may exclude individuals from hosting a full node due to bandwidth/technical restrictions blocking them from processing blocks larger than 1MB.
2. If miner support cannot be drawn upon in order to advance an upgrade/change to Bitcoin, nodes can force their hand through conducting a User Activated Soft Fork (UASF), that upon majority consensus collectively orphan mined blocks that do not comply with the UASF nodes' parameters.
Allow me to give some commentary on both points, and problems I find with each argument.
1. This argument was founded upon the aggregious assumption/belief that a Raspberry Pi connected to a dial-up network should be the theoretical technological ceiling for what is expected of a full node to be operating on, regardless of the very company manufacturing RPi's advertising them as a low-level platform that can be utilized as a development platform, or as a cheap device that can be used by an individual that wishes to learn programming or prototype a project. Additionally, dial-up connections NEED to become something of the past, and just as companies such as Apple are moving technology towards wireless connections with the removal of an auxillary audio port, dial-up connections should be phased out with up and coming technologies such as Bitcoin.
2. The UASF movement came about, as I understand it, because the major Bitcoin discussion platforms couldn't initially drum up enough miner support for Segwit, and since hard forking and the mass acquisition of miner hardware by Blockstream was out of the question, utilizing nodes to enforce changes while also censoring dissent and alternative views came about. As I've come to understand, since the days I first got involved with Bitcoin in 2010, miners were the consensus that should be consulted and needed when ultimately implementing changes to Bitcoin, as most changes would (and should, imo) require a hard fork with all support switching to the new, forked blockchain
When considering these two arguments, a concern came to mind that could affect Bitcoin Cash. In a theoretical world, if larger blocks were to exclude people from having the capability of running full nodes, whether it be through hardware or network limitations, they would assumedly switch over to running some kind of a lighter node that didn't require storage of the Blockchain.
As I understand (albeit potentially incorrectly, feel free to correct me), clients such as Etherum are able to function without requiring the entire blockchain be stored locally due to a lighter kind of node that relays information to the client from other full nodes. Please correct me if I am wrong. If I am, assume the argument that bandwidth/technical limitations still may theoretically reduce the amount of full nodes.
With this theoretical decline in full nodes, at some point in the future, if the political and economic climates were right, wouldn't this potentially make it possible to circumvent miners again through utilizing a UASF even easier? If so, would a continuously increasing block size, over time, undermine miner control in that a UASF could theoretically get easier and easier to perform, which could ultimately lead to another split in the Bitcoin Cash chain?
tl;dr If blocks get to a large enough size to reduce the amount of full nodes in operation, does a UASF become a easier and more dangerous threat/attack on Bitcoin Cash, assuming the political/economic climate was right, ultimately splitting Bitcoin Cash the same way Bitcoin split on August 1st?
submitted by Disrupti to btc [link] [comments]

[SMT] Python script that will display my mining stats onto a RPi Char LCD Plate

I am sorry if this isn't the right subreddit to ask this. I did do a search but I only found C programmers for hire and a general for hire. If this isn't the right place, any point in the right direction would be greatly appreciated.
I have always and still do have an interest in Python and would love to learn how to write said language. Usually, with the help of google I can make small projects happen by my lonesome. However, this time I cannot and I'd like to leave it to an expert because I'd like this working soon.
So heres what I'm looking for; I need a script to run my 16x2 Character LCD plate that I have on my RPi B+ which is running Minera. Which if you're not familiar it is a BTC/LTC mining interface that keeps stats and such. I'd like the LCD to be able to show certain sections of criteria (hashrate, temp, rejected, accepted, runtime, etc) and be able to cycle through screens using the direction pad on the Pi's LCD plate. If I'm not completely wrong, that should all be able to be pulled from a local JSON file that displays every strings(?) value. So I'd like to think this wouldn't be a very challenging task for someone who knows a thing or two about Python.
I have tried to use other scripts as references but I have yet to find anything familiar enough or anybody generous enough to help. I have analysed the PiMiner cgminer script that displays stats but its completely different as far as I can tell. I also don't want stats from just one mining script I need the stats as a whole that Minera shows.
The JSON looks like:
{"notrunning":true,"network_miners":[],"algo":"Scrypt","sysload":[0.09,0.15,0.14],"cron":null,"sysuptime":"212112","temp":{"value":"31.48","scale":"c"},"btc_rates":{"high_eur":373.1,"last_eur":372.5,"high":"416.92","last":"416.25","timestamp":"1458948092","bid_eur":372.15,"vwap_eur":371.52,"bid":"415.86","vwap":"415.15","volume":"2562.44589379","low_eur":368.7,"ask_eur":372.5,"low":"412.00","ask":"416.25","eur_usd":1.11745},"altcoins_rates":false,"avg":{"1min":[{"timestamp":1408447446,"pool_hashrate":0,"hashrate":0,"avg_freq":0,"accepted":0,"errors":0,"rejected":0,"shares":0,"last_share":0},{"timestamp":1402918202,"pool_hashrate":0,"hashrate":0,"avg_freq":0,"accepted":0,"errors":0,"rejected":0,"shares":0,"last_share":0}],"5min":[false,{"timestamp":1408447446,"seconds":300,"pool_hashrate":0,"hashrate":0,"frequency":0,"accepted":0,"errors":0,"rejected":0,"shares":0}],"1hour":[false,{"timestamp":1408447446,"seconds":3600,"pool_hashrate":0,"hashrate":0,"frequency":0,"accepted":0,"errors":0,"rejected":0,"shares":0}],"1day":[false]},"profits":[{"symbol":"btc","coin":"bitcoin","algo":"sha256","reward":25,"difficulty":165496835118.23,"blocks":404277,"networkhashps":1.1398866881043e+18,"volume":0,"price":0,"last_trade":1452828174,"ok":true,"coin_profitability":3.0388145485265e-9,"btc_profitability":3.0388145485265e-9,"timestamp":1458948243,"hashrate":1000000},{"symbol":"ltc","coin":"litecoin","algo":"scrypt","reward":25,"difficulty":57218.81882735,"blocks":963034,"networkhashps":1501568465553,"volume":0,"price":0,"last_trade":1452828192,"ok":true,"coin_profitability":0.0087893144353405,"btc_profitability":0,"timestamp":1458948243,"hashrate":1000000},{"symbol":"doge","coin":"dogecoin","algo":"scrypt","reward":10000,"difficulty":21956.78968544,"blocks":1142465,"networkhashps":1372153551869,"volume":0,"price":0,"last_trade":1452828452,"ok":true,"coin_profitability":9.161889283402,"btc_profitability":0,"timestamp":1458948243,"hashrate":1000000},{"symbol":"mec","coin":"megacoin","algo":"scrypt","reward":25,"difficulty":898.41652505,"blocks":574182,"networkhashps":241796528038,"volume":0,"price":0,"last_trade":1452826742,"ok":true,"coin_profitability":0.55977842823446,"btc_profitability":0,"timestamp":1458948243,"hashrate":1000000},{"symbol":"anc","coin":"anoncoin","algo":"scrypt","reward":2.5,"difficulty":207.90839468,"blocks":506856,"networkhashps":8810230872,"volume":0,"price":0,"last_trade":1451250050,"ok":true,"coin_profitability":0.2418922002002,"btc_profitability":0,"timestamp":1458948243,"hashrate":1000000},{"symbol":"aur","coin":"auroracoin","algo":"scrypt","reward":12.5,"difficulty":2.72522334,"blocks":206221,"networkhashps":26970494,"volume":0,"price":0,"last_trade":1452827107,"ok":true,"coin_profitability":92.270270643645,"btc_profitability":0,"timestamp":1458948243,"hashrate":1000000}]}>
Below is the format I suppose would be needed. I hope it makes sense, haha. I hope I'm somewhat close to accurately conveying what is in my mind.
Hope this "format" makes sense :|
Left/Right scroll below:
Screen 1:
Screen 2:
Screen 3:
Also, the up/down on the directional pad to display/cycle through;
Up/Down Scroll Loop: * Top: Litecoin Balance * Bottom: #Balance#
Down/Up Scroll Loop: * Top: Dogecoin Balance * Bottom: #Balance#
I hope I'm making sense but if you need me to be more specific, ask me. If could maybe afford to pay a little to get this done so if its something you think you could help me out with please give me a shout! :)
submitted by routedbydefault to SomebodyMakeThis [link] [comments]

How to make a Raspberry Pi Bitcoin Mining Rig - YouTube Crypto Mining on SBC - YouTube Raspberry Pi 3+ Bitcoin Mining (Bitmain AntMiner U3) Bitcoin Mining Using Raspberry Pi - DIY how to make Raspberry Pi 3 Bitcoin Mining walk-through using BFGMiner! ASIC Erupter Bitmain Antminer

Following these steps will leave you with a very energy efficient bitcoin miner, as a Raspberry Pi only uses four watts of power, and a miner is typically 2.5W. Mining used to be done with computers consuming over 700W for the same process so to make a jump in savings helps repay the cost of the hardware we are using. All there is to do now is to sit back and watch the money slowly build up ... Zu dem Bitcoin miner von Christian / Christian: Bitcoin minen ist mittlerweile unrentabel, leider. Und dein Pi verbraucht dann extrem viel Strom, wenn du ihn überhaupt unter Vollast laufen lassen kannst, was ich bezweifle. Schau dir mal genau die Werte vom Pi und dem Miner an, dann kannst du das ausrechnen. oder hast du ihn schon gekauft und hast schon Erfahrungen gesammelt? 🙂 Solarbetriebene Himbeer-Pi bitcoin miner . Verwenden Sie Ihren Router oder Ihre Tastatur/Video/Maus, um die IP-Adresse des rPi herauszufinden. Für meine Experimente mit Bitcoin entschied ich mich für einen USB-basierten ASIC-Miner der zweiten Generation, den AntMiner U1. Sie fügen Ihrem Pool auch die oben erstellte Bitcoin-Wallet-Adresse hinzu, damit Sie Bitcoin-Zahlungen erhalten, wenn Sie ... The miner is responsible for the actual mining part.It uses the power of the USB Miner and searches for blocks. In this tutorial we use cgminer, a multi-threaded multi-pool miner for bitcoin.. Install the dependencies sudo apt-get install libusb-1.0-0-dev libusb-1.0-0 libcurl4-openssl-dev libncurses5-dev libudev-dev screen libtool automake pkg-config libjansson-dev screen For this, you’ll need the Pi, a Raspbian image, pool account, Bitcoin wallet, and USB bitcoin miner. Raspberry Pi (RasPi 4 recommended) Bitcoin wallet; Pool account; Raspbian installed; USB Bitcoin miner ($20-$400 USD) Total cost: $55-$460 USD. For this method, you’ll need to begin by creating a pool account and download a Bitcoin wallet. You can snag the Bitcoin client here. Once you’ve ...

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How to make a Raspberry Pi Bitcoin Mining Rig - YouTube

Then lets mine some bitcoins! Following these steps will leave you with a very energy efficient bitcoin miner, as a Raspberry Pi only uses four watts of power, and a miner is typically 2.5W. Get an additional $10 in Bitcoins from Coinbase when purchasing through my referral link http://fredyen.com/get/Bitcoins Raspberry Pi: http://amzn.to/2l6yrW7... Learn how to make a Raspberry Pi Bitcoin Mining Rig. Hardware: 330Mh/z GPU - http://goo.gl/QlGVM7 Powered USB Hub - http://goo.gl/nvPzEy Raspberry Pi - http:... Crypto Mining on SBC like raspberry pi or tinker board might be a total waste of time. but what if i told you it really isn't. while this is not a get rich q... Buy Raspberry Pi 4 Model B 4GB: https://amzn.to/2tlBfGW How to Setup a Raspberry Pi 4 Bitcoin Mining Rig w/ Bitmain AntMiner U3: https://youtu.be/dPWTSytzN7g...

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