Dacade: Peer-to-Peer Learning Introduction to BlockChain First Challenge: According to the challenge that we have given, I would like to start by defining what is Blockchain First a Bolckchain is a decentralized distributed database of Immutable Records. A Blockchain is an open ,distributed Ledger that can records transaction between two parties efficiently and verifiable and Permanent Way. Problems As a Blockchain is a distributed ledge different from an ordinary ledger The main the problems are that Ordinary ledger are prepared by hands or human efforts while the Blockchain perform all its tasks automatically. The chances of error in a Blockchain ledger are for less than in an ordinary ledger Industries are using Blockchain for securing all types of records. By the use of distributed ledger , the system relies on the network servicing protocol and the nodes of network. why it would be beneficial to use a Blockchain Its Compatibility with other business application applications due to its open to its Open Source Nature. Its Security As it was meat for online Transactions, the developers have paid special attention to keeping up the pace when it comes to its Security. It really doesn’t matter what type of Business One owns, Blockchain Can easily be Considered. A Blockchain is protected by a strong Cryptographic Hash algorithm. Any modification in the block constituents will Result in the Change identifier of the Block. Organization that can use Blockchain technology There is no strict upper limit on the category of business who can consider this approach. The fact is almost all the businesses are engaged in online or financial transactions that they need to make to run the process smoothly. Large scale corporations, financial institutions, private businesses , government departments and even defense organizations can trust this technology very easily.

Dacade: Peer-to-Peer Learning Introduction to BlockChain First Challenge: According to the challenge that we have given, I would like to start by defining what is Blockchain First a Bolckchain is a decentralized distributed database of Immutable Records. A Blockchain is an open ,distributed Ledger that can records transaction between two parties efficiently and verifiable and Permanent Way. Problems As a Blockchain is a distributed ledge different from an ordinary ledger The main the problems are that Ordinary ledger are prepared by hands or human efforts while the Blockchain perform all its tasks automatically. The chances of error in a Blockchain ledger are for less than in an ordinary ledger Industries are using Blockchain for securing all types of records. By the use of distributed ledger , the system relies on the network servicing protocol and the nodes of network. why it would be beneficial to use a Blockchain Its Compatibility with other business application applications due to its open to its Open Source Nature. Its Security As it was meat for online Transactions, the developers have paid special attention to keeping up the pace when it comes to its Security. It really doesn’t matter what type of Business One owns, Blockchain Can easily be Considered. A Blockchain is protected by a strong Cryptographic Hash algorithm. Any modification in the block constituents will Result in the Change identifier of the Block. Organization that can use Blockchain technology There is no strict upper limit on the category of business who can consider this approach. The fact is almost all the businesses are engaged in online or financial transactions that they need to make to run the process smoothly. Large scale corporations, financial institutions, private businesses , government departments and even defense organizations can trust this technology very easily.

Dacade: Peer-to-Peer Learning Introduction to BlockChain First Challenge: According to the challenge that we have given, I would like to start by defining what is Blockchain First a Bolckchain is a decentralized distributed database of Immutable Records. A Blockchain is an open ,distributed Ledger that can records transaction between two parties efficiently and verifiable and Permanent Way. Problems As a Blockchain is a distributed ledge different from an ordinary ledger The main the problems are that Ordinary ledger are prepared by hands or human efforts while the Blockchain perform all its tasks automatically. The chances of error in a Blockchain ledger are for less than in an ordinary ledger Industries are using Blockchain for securing all types of records. By the use of distributed ledger , the system relies on the network servicing protocol and the nodes of network. why it would be beneficial to use a Blockchain Its Compatibility with other business application applications due to its open to its Open Source Nature. Its Security As it was meat for online Transactions, the developers have paid special attention to keeping up the pace when it comes to its Security. It really doesn’t matter what type of Business One owns, Blockchain Can easily be Considered. A Blockchain is protected by a strong Cryptographic Hash algorithm. Any modification in the block constituents will Result in the Change identifier of the Block. Organization that can use Blockchain technology There is no strict upper limit on the category of business who can consider this approach. The fact is almost all the businesses are engaged in online or financial transactions that they need to make to run the process smoothly. Large scale corporations, financial institutions, private businesses , government departments and even defense organizations can trust this technology very easily.

I’ am Rwandan and I live there, so in our country, ICT is developing quickly and online payment is advancing so much, but the problem we have is for transferring a large amount of money and using other currency more than local currency, because central bank block the money and make the investigations of the source of that money and the details of the circulation. So, after understanding block chain I feel like that problem has resolved because if none control the transfer of money they will not have the ability to block the money. for example in betting system and marketing global network, need to transfer a larger amount of money so if third part has ability to block those money, it is a problem but if there is a way of removing third part in that transaction like block chain, it will help global marketing online, betting site, retailing , shopping online and other online business to go on with a large amount without government intervention. 1. In betting system if every participant has a bitcoin account and use it for betting and after winning payed using his bitcoin account it will help to not asked explanation and blocking of money from government it will also reduce the charge and tax for them 2. In global marketing, the government fear of deflation so the limit everything, which use foreign currency so if the member of the marketing company use the block chain technology there, is no limit of their business. 3. In buying and selling by avoiding the charge of third part inside or outside the country buyer and seller, use their bitcoin account it will be easy to transfer amount of money at everywhere easier and cheap price.

Blockchain technology can be used in the government payroll system. due to the rise of ghost workers in the government economy system, blockchain technology can used to track and detect those using multiple bank accounts in the payroll system by providing some basic information about their accounts and verifying them so that a person cannot have multiple payment at the same time. and it can also be used to track the amount of money being paid to staffs in the payroll system.

In my country we have one central bank where all citizens money stored, after learning this blockchain technology i saw that we have a big problem.Once this central bank accidentally meet with circumstances( like fire,steal and etc) our country can go back to poverty because financial issue. But Once we use blockchain, this is should be solved because there is no intermediate Bank which is in charge of controlling money of each citizen.they should use blockchain by saving and withdraw money using bitcoin which is secure and faster during transaction.also journey take by citizens to to bank to deposit or withdraw will reduced,time wasting will be reduced, country financial be secured,no attackers come again to steal our money in our specific bank even in central Bank,lisk of mistakes for cashiers will be removed and etc.... Blockchain can be a good solution to my country instead of using central bank should use smart contract in order to cheap,faster,and secure in our daily to daily transaction

Dacade: Peer-to-Peer Learning Introduction to BlockChain First Challenge: According to the challenge that we have given, I would like to start by defining what is Blockchain First a Bolckchain is a decentralized distributed database of Immutable Records. A Blockchain is an open ,distributed Ledger that can records transaction between two parties efficiently and verifiable and Permanent Way. Problems As a Blockchain is a distributed ledge different from an ordinary ledger The main the problems are that Ordinary ledger are prepared by hands or human efforts while the Blockchain perform all its tasks automatically. The chances of error in a Blockchain ledger are for less than in an ordinary ledger Industries are using Blockchain for securing all types of records. By the use of distributed ledger , the system relies on the network servicing protocol and the nodes of network. why it would be beneficial to use a Blockchain Its Compatibility with other business application applications due to its open to its Open Source Nature. Its Security As it was meat for online Transactions, the developers have paid special attention to keeping up the pace when it comes to its Security. It really doesn’t matter what type of Business One owns, Blockchain Can easily be Considered. A Blockchain is protected by a strong Cryptographic Hash algorithm. Any modification in the block constituents will Result in the Change identifier of the Block. Organization that can use Blockchain technology There is no strict upper limit on the category of business who can consider this approach. The fact is almost all the businesses are engaged in online or financial transactions that they need to make to run the process smoothly. Large scale corporations, financial institutions, private businesses , government departments and even defense organizations can trust this technology very easily.

Blockchain technology can be useful in land or fixed property purchases. A traditional land purchase involves 2 parties; the sender and the buyer but to exchange the title a third party, the authorities, are involved to regularise the documents and papers. This is an open gate for corruption or unnecessary errors in issuing papers or required documents, some can be easily lost or changed without the owner’s consent. Falsification of documents is a key issue too in land purchase. With the help of a blockchain network and smart contract, these issues can be minimise by creating a program that would interact with the two parties and the country’s system that records all the land ownership within the country and establish a transaction. The smart contract would initiate the transaction and a purchase would take place and the payment too. The problems that would be solved would be: - The time it takes for the paper and documents to be ready which could be weeks or even several months - The overall cost would be reduced; transport and other charges would be reduced to none - Risks of getting false documents are none

Blockchain technology has brought a new and revolutionary era, it is changing the way in which man performs his various transactions, she is responsible for converting any transaction into a reliable, verifiable and free to be altered so what better place where to apply that in the elections of our governments, where there have always been problems of trust, to achieve true corruption-free elections, but how do we ensure that they are incorruptible? How can we ensure that the only people who can vote are those who really have the right to do so and that it is only once? I believe that the answer to this is found in one of the great strengths of the blockchain and that is to make the information public, taking into account that the elections would have two phases, the first would be to grant permission to vote to those who have the right to vote. To do this, for this we will take the point of making it public by broadcasting live the process and the list of people who are being added with their respective income data, it is important to make sure that the person who is voting is really because more than just using a private key, the correct thing would be that it was linked to your fingerprint or some similar method of verification, after all the data and rights are verified, we proceed to grant you a voting token that can only be accessed with your respective fingerprint. After the vote collection process, you can proceed to carry out the voting and for this you can open centers that allow those with permission to pass their tokens to the candidates, now these accounts have special features the first thing is that their balances They are public and can be reviewed at any time, in addition to these being separated from their normal accounts and do not have the right to make a transaction regardless of how many tokens they have, with this in mind you should be able to review and compare the status of the accounts of candidate at any time and in this way know how the election is proceeding in real time.

In real-life a could be used in IMPROVING HEALTHCARE, Blockchain provider SimplyVital Health has already created two blockchain products that are designed to improve healthcare management. The first, ConnectingCare, tracks the progress of patients after they leave hospital, and the second, Health Nexus, is designed to provide decentralised blockchain patient records. Elsewhere, startup company Gem is working with the Centre for Disease Control to build a blockchain for storing disease outbreak data, in the hopes of increasing the effectiveness of disaster relief. Also Blockchain can be used in BETTER BANKING AND TRANSACTIONS where some Banks have already launched a number of blockchain initiatives for, among other things, tracking financial transactions and combating fraud, and any bank is collaborating with Microsoft to create a blockchain for managing bank guarantees. In another example, Aeternity’s blockchain platform allows users to create smart contracts that become active when certain conditions have been met, which means automated payments can be released when parties in a transaction agree that their conditions have been met. Blockchain used in CHAINS OF SMARTEST SUPPLY for example Knowing the status, condition and provenance of every product or goods on your supply chain is key for businesses – and, for clients or consumers, provenance is becoming an increasingly highly important issue. DeBeers is planning to use blockchain technology to trace diamonds all the way from the mine to the end client, which will increase transparency and allow clients to verify that their diamonds are free from conflict. So in VISIT RWANDA blockchain can be used in order to help tourists from outside countries for booking where to visit without any Intervention of third part like credit card or visa card by paying booked place to visit Rwanda.

The Identity Chain People don't like passwords. The simplest way to implement login on the internet is to use a "trusted" third-party like Google or Facebook and implement one-click login through them. You also need them to request a user's details like their contacts, likes, age, etc. Also, if two applications do not trust each other but want to identify a user across each other, they currently NEED someone like Facebook or Google. Two apps logging a user in through Facebook know it's the same user they're dealing with. I propose an alternative system, where you don't need a trusted central authority. There's already an identity provider that is trust-less - the blockchain. In it lies everyone's public key. Logging in with a public key doesn't need users to enter a password - they upload their public keys to a server and then use a wallet-like app that handles singing of a challenge text from the server with the private key to identify themselves to the application. This is how SSH works. The wallet in this case is the ~/.ssh folder in a user's home directory that contains their private keys, with permissions such that nobody else can read them. Creating nicer graphical workflows to login with a private key is trivial! The sending of challenge strings and responding to them can be abstracted behind APIs. These APIs can be accessed by an easy to use app that does the actual logging in via human-centric actions like scanning a QR code, scanning a fingerprint or tapping a notification! Now onto the second use-case - applications need to request data from the user. For this, they don't need to ask an intermediary. If the applications are registered on the blockchain, you can use ECDH (example: https://github.com/mradkov/secure-data-exchange) to securely exchange data between the user and the application. The applications ask the user for data directly! Finally the third use-case - all you need for two applications to identify a person as being the same user across each other is to confirm that the public key uploaded by the user matches that on the blockchain! And this is completely under the user's control. A user can use a different key for each app if they don't like to be tracked. This would be MUCH harder to do with Google and Facebook because you would need a separate Google and Facebook account for each app! The blockchain here is merely facilitating EXCHANGE of identity information. Applications control their own data. Users control their own data. THIS is how the internet should REALLY be!

The number of lending scam platforms is growing. We need a desentraliced lending platform to protect crypto users. I suggest the creation of a decentralized lending platform where people who want a loan and people who want to lend money could make a deal using smart contracts without intermediaries. Both the lender and the taker would use a programmed smart contract that would be ready to use on the platform. They just would fill in the smart contract with the necessary data such as payment deadlines, amount on money/crypto, guarantee, crypto addresses and then they would procced to activate the lending smart contract with clear conditions and without intermediaries. By the way There would be a section in the platform where people would post lending and asking offers

My grandfather owns a very big farm in Kenya, we cultivate maize and Irish potatoes, there are many overheads in whole process of managing the farm like daily plan and time table, prepare and document the place for crop storage, ordering new equipment, preparing salary payroll, all of these task can be done by using centralized system. Centralized process has a lot of setback, include accessibility, efficiency, susceptible to hackers, and possibility of losing some important data. By using block chain technology, we can create a decentralized ledger that store all farm related information in a decentralized manner that will be accessible by all player in a given operation.

My mom is working at the blood bank center in Mount Meru hospital, she said they travel all over the country collecting blood to different donors the blood is then stored in National blood bank and then distributed to referral hospital and then to local hospital upon request. The process of looking for donors during blood collection can be simplified by using special customized app, this app will contain a lot of information of the donors his blood group, blood health status and just other information that is private to the doner. But there is a problem with these decentralized system they can easily be hacked and patient information would be compromised, this problem will be minimized by adopting block chain technology. Also reward based blood donation could motivate people to give more blood, this will easily be achieved by donating through crypto which is indeed not a bad thing.

Creating global services like health insurance and banking..A decentralized network of health insurance companies sharing a single ledger that is distributed with equal control,can provide health insurance services to customers anywhere in the world,also banks can also use this decentralized Architecture to provide global banking services that can be accessed anywhere in the word effortlessly

I first go to ministry of foreign affair after graduating high school, i go there because I was looking for ways to get my passport and just verify some other thing related to my citizen ship identity. I met with the secretary and he just ask for my citizenship registration number she then fetch for my information in their database. Then something came in my mind that what if I can penetrate into their data base and change my information, I tried by using site mapping, google hacking and then I have use shodan, I successed to some extent. So there is the need to find a way to adopt block chain based citizenship data base, since mathematically it was proven that it cannot being hacked.

It can be used to build a P2P betting site

Provision of loans to farmers can be made more efficient and transparent as ever, involving to centralized bodies.... A smart contract can be used, such that the farmer takes a loan and pays back with a fixed or particular interest, appropriately with the use of a dApp.... And avenue where farmers can take loan and pay back, in like a peer to peer system... Well doing farmers and individuals give out loans to other farmers, and they pay back, all in a smart contract..

Good my idea for the use of the blockchain is, in the histories of the hospitals, because they carry it manually and not digitally, since it is data that does not have to be modified, blockchain technology could be used to save that data and also that all hospitals are connected and can see these patient records and in which hospital they were treated. The best example would be, a patient was treated in hospital A, and the same patient went to hospital B for an emergency, because with a page that connects to the blockchain, look for that patient and attend to him instantly without having to wait for make another record at that hospital.

I will use my country as a case study. Our government loot money that supposed to be use for infrastructures, payment of salaries etc Having a decentralized programmable currency, money meant for a purpose will be spent only for that purpose.