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      "body": "In this article, I am planning to cover future technology trends of block chain at a high level\n\n# dICO \n\ndecentralized ICO. Traditional ICOs are not decentralized. They have several problems because of their centralization.\nFirst, a traditional ICO takes place on a single node. For instance, you might purchase an ICO token on a website, which is running on a single server. The process of making the purchase is handled by this one server. No matter how fast the machine, the software to accept your funds can only accept one transaction at a time.\nSecond, a user must send their funds to the ICO website, where the funds are held in escrow. This period of holding and validating transactions can takes weeks, if not months, before the ICO tokens are distributed\nSophisticated and wealthy bot programmers (often called “whales”) have an unfair ability to purchase the coin supply during the opening moments. Observe the histories of Decentraland and Binance for examples. In both cases, all the ICO tokens sold out in moments. As the demand for the products was highly likely to rise, the whales had merely to wait a few months, and then sell their tokens to the less wealthy and less technically savvy audience at a dramatically increased price.\n\ndICO created more opportunities to average investors. After you make your traditional ICO purchase and your funds are sitting in escrow, it is extremely vulnerable to human faults such as hacking, theft etc\n\nwhen a dICO is released, not all of the coins are located on one server. Instead, they are split up and scattered across as many nodes as the dICO administrator chooses (some can use upwards of ~100 separate servers). A whale trying to purchase all the supply would have to purchase everything at each server simultaneously – an extremely hard thing to do.\n\nSecondly, in a dICO, the creator has the option to program the coins to release not all at once, but rather at a customized rate. \n\nFor instance, 45% of the supply could be available immediately, then 15% releases a few days later, and so on until the entire supply is available. Now, a whale would have to continually compete for days on end to purchase the entire supply.\n\n# DEX\n\nThe current, most practical method for crypto currency exchange requires the use of centralized exchange services. Such centralized solutions require vouchers to perform the exchange. Among many dangers present in this system, end-users are under the constant risk of their assets being stolen either by an inside theft or an outside hack. Furthermore, the operators of centralized exchanges an exhibit bias in how they facilitate trading among their users. They can also create fake levels of volume on their exchange. To eliminate such dangers and limitations requires the creation of a decentralized-exchange alternative.\n\nA decentralized exchange is an exchange market that does not rely on a third party service to hold the customer's funds. Instead, trades occur directly between users (peer to peer) through an automated process. This system can be achieved by creating proxy tokens (crypto assets that represent a certain fiat or crypto currency) or assets (that can represent shares in a company for example) or through a decentralized multi-signature escrow system, among other solutions that are currently being developed.\n\nThe most obvious benefit to using a decentralized exchange over a centralized one is their trust less nature. You are not required to trust the security or honesty of the exchange since the funds are held by you in your personal wallet and not by a third party.\n\nAnother advantage to the decentralized model is the privacy it provides.\n\nUsers are not required to disclose their personal details to anyone, except if the exchange method involves bank transfers, in which case your identity is revealed only to the person that is selling or buying from you.\n\nFurthermore, the hosting of decentralized exchanges is distributed through nodes meaning that there is no risk of server downtime.\n\n# Atomic swap\n\nAtomic swaps, or atomic cross-chain trading, is the exchange of one crypto currency to another crypto currency, without the need to trust a third-party. A relatively new piece of technology, atomic cross-chain trading is looking to revolutionize the way in which users transact with each other. For example, if Alice owned 5 Bitcoins but instead wanted 100 Litecoins, she would have to go through an exchange, i.e. a third-party. However, with atomic swaps, if Bob owned 100 Litecoins but instead wanted 5 Bitcoins, then Bob and Alice could make a trade. In order to prevent, for example, Alice accepting Bob’s 100 Litecoins but then failing to send over her 5 Bitcoins, atomic swaps utilizes what is known as hash time-locked contracts (HTLCs).\n\nHash time-locked contracts ensure that the atomic swap process is completely trust less by ensuring both fulfill the requirements of the trade. HTLCs require the recipient of a payment to acknowledge receiving payment prior to a deadline by generating a cryptographic proof of payment. Or the recipient risks losing the right to the claim the payment, therefore returning the funds back to the sender.\n\nTherefore, for a trade between Alice and Bob to take place, both must submit their transaction to their respective block chain, Alice on the Bitcoin block chain and Bob on the Litecoin block chain. In order for Alice to claim the 100 Litecoins sent from Bob, she must produce a number that only she knows, used to generate a cryptographic hash, therefore providing proof of payment. Similarly, in order for Bob to claim the 5 Bitcoins that was sent from Alice, he must also provide the same number, that was used to generate the cryptographic hash.\n\n# Block chain meeting IoT\n\nBy combining block chain and IoT more and more advanced applications like intelligent insurance policies, cooperatively owned self driving cars, shared machinery, community shared solar energy, waste water treatment systems, shared office spaces etc will evolve and more transparency will come in these applications\n\n# PoS, DpoW, HoneyBadgerBFT\n\nMore and more new consensus algorithms will come which will reduce energy consumption, increase performance and increased security. \n\nIn proof-of-stake public block chains, like Ethereum’s upcoming Casper implementation, a set of validators each bet on blocks they deem likely to be validated, and the weight of each validators vote depends on the size of its deposit. Punishments are levied on bad actors who bet on more than one block at a certain depth or who don’t participate when they are supposed to.\n\nDelayed Proof of Work (dPoW) is a hybrid consensus method that allows one block chain to take advantage of the security provided through the hashing power of a secondary block chain. This is achieved through a group of notary nodes that add data from the first block chain onto the second, which would then require both block chains to be compromised to undermine the security of the first.\n\nMost fault tolerant protocols (including RAFT, PBFT, Zyzzyva, Q/U) don't guarantee good performance when there are Byzantine faults. Even the so-called \"robust\" BFT protocols (like UpRight, RBFT, Prime, Spinning, and Stellar) have various hard-coded timeout parameters, and can only guarantee performance when the network behaves approximately as expected - hence they are best suited to well-controlled settings like corporate data centers.\n\nHoneyBadgerBFT is fault tolerance for the wild wild wide-area-network. HoneyBadger nodes can even stay hidden behind anonymizing relays like Tor, and the purely-asynchronous protocol will make progress at whatever rate the network supports.\n\n# Cloud providers supporting block chain platforms\n\nOne of the main drawback of block chain adaption in enterprises is the lack of best development environments for different block chain platforms. In future most of these problems will be solved as big companies like IBM, Microsoft, AWS will be releasing their tools.\n\n# Inter operable block chains\n\nThe number of block chains and distributed ledger networks has exploded in the last year. As established networks like Bitcoin and Ethereum are hitting both economic and technical scaling limitations, migration to other chains is becoming a necessity for many developers, miners, and entrepreneurs.\nDiverse networks competing for a share of the crypto market have unique advantages and disadvantages. As time goes on, it is becoming clearer that there is no perfect solution to all block chain needs. There are trade-offs that have to be made in development to optimize a block chain for specific purposes.",
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      "memo": "Hi I am lady Merlin...You are awesome.I need your friendship,i am following you, kindly follow me .I can get you FREE UPVOTES JUST FOR FRIENDSHIP..Thank you"
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      "permlink": "re-introducebot-introduce-bot-re-linuxchipsmart-contracts-on-bitcoin-cash-20180722t153053619z",
      "title": "",
      "body": "Sure, thanks",
      "json_metadata": "{\"tags\":[\"bch\"],\"app\":\"steemit/0.1\"}"
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      "author": "steemitboard",
      "permlink": "steemitboard-notify-linuxchip-20180722t040259000z",
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      "body": "Congratulations @linuxchip! You have completed the following achievement on Steemit and have been rewarded with new badge(s) :\n\n[![](https://steemitimages.com/70x70/http://steemitboard.com/notifications/firstcomment.png)](http://steemitboard.com/@linuxchip) You made your First Comment\n\n<sub>_Click on the badge to view your Board of Honor._</sub>\n<sub>_If you no longer want to receive notifications, reply to this comment with the word_ `STOP`</sub>\n\n\n\n**Do not miss the last post from @steemitboard:**\n[SteemitBoard World Cup Contest - The results, the winners and the prizes](https://steemit.com/steemitboard/@steemitboard/steemitboard-world-cup-contest-the-results-and-prizes)\n\n> Do you like [SteemitBoard's project](https://steemit.com/@steemitboard)? Then **[Vote for its witness](https://v2.steemconnect.com/sign/account-witness-vote?witness=steemitboard&approve=1)** and **get one more award**!",
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      "permlink": "re-constone-re-linuxchip-smart-contracts-on-bitcoin-cash-20180721t142326123z",
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      "body": "Sure, i will.\nThanks",
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      "permlink": "re-linuxchip-smart-contracts-on-bitcoin-cash-20180721t121050079z",
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      "body": "That is awesome and congrats, please let us know when the BCH smart contract has been written.",
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      "author": "introduce.bot",
      "permlink": "introduce-bot-re-linuxchipsmart-contracts-on-bitcoin-cash",
      "title": "",
      "body": "✅  @linuxchip, I gave you an upvote on your post! **Please give me a follow** and I will give you a follow in return and possible future votes!<br><br>Thank you in advance!",
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      "parent_permlink": "bch",
      "author": "linuxchip",
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      "title": "Smart Contracts On Bitcoin Cash",
      "body": "As a smart contract developer on Ethereum, i always dream about smart contract support on Bitcoin cash and my dream coming to true. \n\nBitmain, known for its Application Specific Integrated Circuit [ASIC] miners, has recently proposed developing and implementing a protocol for smart contracts on the Bitcoin Cash [BCH] blockchain. The proposals reportedly emerged from Chinese WeChat groups comprising of developers from the company.\n\nBitcoin cash team partnered with Bitmain to enable smart contract functionality on Bitcoin cash blockchain.\n\nBitcoin cash with the help of Bitmain is planning to bring smart contract technology on BCH blockchain using Wormhole tokenization protocol. The first token that has been issued with this protocol is known as Wormhole Cash.\n\nWormhole Cash adds new features to the BCH Blockchain. This includes token issuance, transferring and burning into the BCH blockchain without any changes to the current consensus rules. \n\nThe transaction’s metadata is written in OP_RETURN, one among Bitcoin Cash’s opcodes. \n\nWormhole protocol-based tokens can be issued, transferred and burnt only through Bitcoin Cash transaction. Additionally, it can be completed by reading data stored in OP_RETURN. \n\nThe Wormhole protocol will be implemented by integrating into Bitcoind, without any changes to the consensus rules of Bitcoin Cash.\n\nAfter tremendous research,  now they have paid attention to the Omni Layer protocol. The Omni Layer runs on top of Bitcoin blockchain. As Omni Layer protocol is open source, they forked Omni Layer protocol and implemented the technical feature on Bitcoin Cash blockchain to achieve token issuance. Named this technical feature as Wormhole protocol, and the original token in the protocol is named as Wormhole Cash\n\nWormhole will utilize Bitcoind nodes and consensus will not need to be changed. \n\nThe security of the protocol is ensured primarily by the Proof-of-Work [PoW] algorithm adopted by Bitcoin Cash. This is also multiplexed into the decentralized timestamp server model that has been running without issues for almost 10 years since the Genesis block of Bitcoin itself.\n\n The second layer run on Bitcoind will consist of nodes that won’t process data that doesn’t meet the Wormhole protocol requirements.\n\nEach node has the ability to reanalyze transaction data and calculate the most recent legal final state of Wormhole Cash.\n\nSoon full details will be released\n\nI am eagerly waiting to write my first smart contract on BCH :-)",
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      "title": "",
      "body": "# Sell your votes https://steemit.com/news/@bible.com/6h36cq",
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      "parent_permlink": "blockchain",
      "author": "linuxchip",
      "permlink": "atomic-swap",
      "title": "Atomic swap",
      "body": "![AtomicSwap.png](https://cdn.steemitimages.com/DQmShWhb1XxjYRNjTzXZWPRDXhiHg747cR4NMmCrxWzdcq6/AtomicSwap.png)\n\nIt sounds terrifying! But this is a peaceful term. It has nothing to do with atomic or nuclear energy, nor with ballistic missiles. Atomic — literally means indivisible. In the context of blockchain networks, it is a trading and financial exchange transaction (transfer of funds from one blockchain to another), which is performed directly without the involvement of intermediaries. The technology of atomic transactions allows P2P trading between different types of digital assets. This is of great importance for the future of cryptocurrencies, since the ability to freely change coins between blockchains opens up a whole new world of possibilities. Atomic swaps can drive traditional cryptocurrency exchanges out of the market, as this technology can give users full control over their money if there is a need to exchange one cryptocurrency to another.\n\nDespite the fact that the concept of atomic swaps was first described by Tier Nolan, the technology is still in development. At its apparent simplicity, while putting such an idea into practice things are not so smooth.\n\nExcept for the isolated cases, no one has succeeded in implementing it in mass application. One of the brightest projects that has successfully performed atomic swaps is the Lightning Network. This protocol was developed in 2016, the active phase of testing and launching started only in late 2017. Lightning Network initiates mutual debt obligations for both wallets when trying to transfer funds from one to another. This creates an additional load on the already slow Bitcoin network — to the blockchain transactions are additionally added clearing, which should equalize the balance of the wallets. In addition, the network blocks collateral deposits on wallets, which is also not always convenient for users. Another protocol of atomic transactions — Raiden Network on the popular Ethereum platform, is still being developed.\n\nNevertheless, the market is waiting for the implementation of atomic swaps. The traders have the most interest in them. And this is really important. All without exception, exchanges have a common drawback — the very principle of centralized exchanges negates many of the advantages that blockchain technology gives. After all, by transferring funds through the exchange, the trader transfers his assets to a third party, that is, loses his sole control. The ability to access a huge number of wallets at one point attracts attention of hackers to exchanges. News that attackers broke into an exchange and seized the funds of users appear in the media almost every day. In addition, there is a risk that state bodies will interfere with the work of an exchange and block accounts.\n\nAs an alternative to conventional exchanges, decentralized exchanges have already been established. Thanks to smart contracts, decentralized exchanges are faster and safer than centralized ones. But they also have a drawback. Almost all of them work only with ERC20 and ETH tokens. The rest have a very limited set of currency pairs.\n\nAnd now imagine that all crypto assets can be bought, changed and stored in one wallet. How much time will it save you? Minutes, hours? The perception of time, of course, subjective, but I’m sure the benefits will be tangible. And let’s go even further. Imagine that you set up a wallet in such a way that when the market situation changes, it will automatically signal you about the necessary transactions. You go into your account, click the “Run” button, and voila — your portfolio is again in perfect balance! And this is no longer a fantasy. This set of services has already been implemented in the Blockchain Ventureon project. Now we are testing atomic transactions and smart contracts that manage external assets. So far, everything is going well. Developers regularly publish reports on successfully conducted tests on the site of the project vnn.money.\n\nThe Ventureon team designed a new blockchain not so much for traders as with a focus on startups and venture investors. Initially, they encountered inconveniences when trying to conduct an ICO for their own project. You can start public placement of tokens only on Ethereum, you can not get depositors’ funds in other currencies, you need to mediate exchanges, and there are difficulties with programming a smart contract.\n\nTraditionally already, I give the floor to the founder — Anton Sobor:\n\n“We have approached the problem in detail. There were a lot of blockchains, but few people bothered with the problems of startups. We focused on infrastructure. One of the first infrastructure solutions, we made direct transactions from VNN to extraneous platforms — to BTC and back, to ETH and back, to fiat, to the MasterCard. We have published all supporting links in the Development Diary on the site. You can go through them and make sure that the transactions have really passed and been confirmed in all networks. Thus, we can connect any blockchain to atomic transfers. ERC20 tokens, the most common, can be freely transferred in all directions. “\n\nSo, what will the users get if the project is successfully launched on August 20 this year?\n\nThe first is the convenience of using the wallet and the infrastructure of Blockchain Ventureon. Over time, it will be possible to store all cryptocurrencies that will be connected to the VNN gateways. It will be convenient to transfer funds quickly from one asset to another. For example, if you need to rebalance the investment portfolio with an orientation on the fluctuations of quotes. For ICO or crowdsales — automatic reception of all top cryptocurrencies and fiat money.\n\nThe second is, of course, the usage of smart contracts in conjunction with the technological advantages of the platform. Despite the billions invested in the development, the leading blockchain-platforms are not yet ready for implementation in real business. They are slow, cumbersome and inconvenient. With the help of Blockchain Ventureon it is now possible, for example, to manage digital assets from other blockchains and even fiat means, bypassing exchanges. Or activate smart contract actions for any scheduled external events, such as sending an invoice, confirming receipt of the transfer or delay in the delivery of the goods. Accept payments for a smart contract from other blockchain-networks. Yes, and even to give the homeless John a can of beer in the vending machine number 3 of the shopping center in Orlando for every degree of air temperature rise above 20°C! You can automate a lot of useful processes.\n\nAll this give me confidence that Ventureon will become one of the top blockchain systems, with the successful attraction of funds for scaling, of course. Based on the opinions of recognized blockchain experts, I think that this will not be very difficult. Here is an example of one of these comments.\n\n[Aravinda Babu](https://www.linkedin.com/in/linuxchip/) (Technical Blockchain Advisory):\n\n“First of all Atomic swaps is one of the brilliant concept of decentralization world. It is one of the feature which will enhance the use of real decentralization. As a technical blockchain expert i know how important is Atomic swaps and i researched the present atomic swap product line. Most of the atomic swaps in current market are not fully functional in terms of performance and supporting various cryptos belonging to various blockchains. The major pain points right now in the market are performance, supporting various cryptos and utilising smart contract functionality fully. Ventureon exactly solving this issue. As a smart contract developer and Security Auditor i know how much use to all crypto market once these problems are solved. This solution really helps ICO fundraises because so many of my clients are facing problems when they try to raise their ICO using various crypto currencies. Some are using high cost middle men solutions which are of no great use.”\n\nIf you are still interested, wait for new articles. In the following publications, I will talk about when the Blockchain-Notary will be launched, giving rise to the history of supranational regulation of the relationship of subjects in the blockchain environment.",
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      "body": "* We are building a network of 25 million hotspot hosts across the globe within 4 years.\n\n* To build that network of hosts we need to run a worldwide marketing and advertising campaign for that 4 year period. We estimate the cost to reach out to each host to be $1.\n\n* We pay each host on a daily basis for contributing to our global network for a minimum of one hour per day.\n\n* We pay each host on a daily basis for viewing a pre-agreed number of messages from our advertisers.\n\nThe amount we intend to pay each host will significantly contribute to the monthly cost borne by that host in respect of their mobile phone bill and bills associated with accessing the web.\n\n\n# How do we achieve all of this?\n## Hotspot Hosts — sharing bandwidth\n\nOur agreement with each host covers a specific activity. If you activate our mobile app for one hour per day we will pay you a daily fee. The most efficient and transparent way to manage this is with a smart contract. We provision the reward, once the activity is completed the smart contract is fulfilled and reward released to the host.\n\n## Secondary contract with Hosts — viewing advertising\n\nHotspot Hosts are also rewarded for viewing push messages from advertisers. The hosts elects how many and what type of message they would like to view.\n\nThe advertiser is therefore aware of who will view his messages, when and how frequently. The advertiser will pay OPP for this service.\n\nThis is a smart contract with 3 players, we provision reward for the host watching the message, the advertiser provisions reward for us providing the service, when the message is watched the smart contract completes and rewards are distributed.\n\n\n# ICO — Smart contracts for investors.\n\nEvery investor in our ICO will have their transaction carried out with a smart contract. The smart contract defines how much the investor pays, how it is paid, the number of tokens bought, when the tokens are released, etc.\n\nEach of these scenarios displays the 5 classic criteria that need to exist in order for Blockchain to provide optimal transactional processing.\n\n1. Presence of a business network, assets and transactions\n\n2. Multiple participants to verify transactions\n\n3. To know who has done what and when\n\n4. Irrefutable trusted transaction\n\n5. A single view of truth shared across network\n\n\n# Why tokenise OPP?\n\nWe will mint 4 billion tokens. 96% Of these tokens will be held in reserve and added to the system to pay rewards to Hotspot Hosts. The tokens will be released in to the system at an approximate rate of 190 tokens per Hotspot Host .\n\n3.6% of the tokens are available in the ICO and will raise the funds needed to operate the business and fund the advertising to recruit the 25 million hosts. We aim to raise $40 million.\n\nThe value of each token is 0.4 USD.\n\nIf we did not tokenise the business we would need cash held in reserve of $1,600,000,000 simply to pay daily rewards to Hotspot Hosts.\n\nTokenising the business and fund raising via an ICO is the only method by which OPP OPEN WIFI can deliver its goals and facilitate hundreds of millions of people free access to WiFi hotspots and allow millions of hosts to monetise their unused bandwidth.\n\n\n**In our model every stakeholder benefits. This is what makes OPP OPEN WIFI an extremely important project.**\n\n* Hosts monetise unused bandwidth\n* Hosts control the amount of advertising they view\n* Users gain open and free access to web\n* Advertisers get sharply focussed and willing audience\nTraditional internet suppliers and mobile phone companies are not removed from the model. In fact we recognise the importance of these players who provide the infrastructure. We make their service more affordable for their clients.\n\nIn short — OPP will be servicing 25 million hosts with daily payments to reward daily activity. That means we will be making more than 25 million contracted transactions each day. Every transaction involves the movement of assets across a business network, every transaction involves a defined specific activity, every transaction must have total transparency and trust. This is a perfect match for blockchain.\n\nUsing an ICO allows us to raise the funds to kick start the business model. If we were unable to mint tokens then we would need a Dollar cash reserve of 1.6 billion USD just to service the Hotspot Hosts.",
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