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      "body": "Dear @otk ,\nThank you for participating in this Mini Crypto program, I really appreciate your good intentions and your efforts in understanding our practice this time.\n\n<center>Quantity</center> | <center>Score</center>\n--- | --- | \n</center>Understanding the topic</center> | <center>2/10</center>\n</center>Compliance with Topic</center> | <center>2/10</center> \n</center>Clarity of Language</center> | <center>1,5/10</center> \n</center>Quality of Analysis</center> | <center>2/10</center>\n</center>Markdownstyle</center> | <center>0,8/10</center>\n</center>Plagiarism</center> | <center>1/10</center>\n</center>Grand total</center> | <center>9,3/10</center>\n\n* Good job for you 👍\n* This learning will greatly benefit you to be in Crypto Academy later, because we are in cryptocurrency-based social media, and Cryptocurrency is in blockchain technology.\n\n* Thank you very much, we will waiting for your next exercise, and we will waiting you at the season 4 of Crypto Academy. 👍💪\n\nHas been assessed by;\n@liasteem\[email protected]",
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      "title": "Mini Crypto Program Part 3 || \"Understanding of Blockchain\", by @otk",
      "body": "</div></p>\n<p><div class=\"text-justify\">\n\n</div></p>\n<p><div class=\"text-justify\">\n\n\n![MINI CRYPTO PROGRAM 3.png](https://cdn.steemitimages.com/DQmSkkZBuxd56PN5LozJ8u4Da46pP62ohc9oVi4HHBZLTwE/MINI%20CRYPTO%20PROGRAM%203.png)\n\n\n\nHello everyone, I will be answering my questions on the understanding of blockchain as asked below.  Hope you find it thrilling. \n\n\n\n\n![golden line.png](https://cdn.steemitimages.com/DQmPNftLA64k9MJx1PuvCfui2EW4cCLqdMWJb53BrbRURjg/golden%20line.png)\n### 1. What do you know about blockchain?\n### 2. Describe one type of blockchain.\n### 3. Explain the advantages and disadvantages of the type of blockchain you choose.\n### 4. Visit [Blockchain Demo](https://andersbrownworth.com/blockchain/blockchain), and what did you learn from that page? (screenshot required) \n### 5. Explain the advantages and disadvantages of using blockchain technology.\n\n### Conclusion!\n\n![golden line.png](https://cdn.steemitimages.com/DQmPNftLA64k9MJx1PuvCfui2EW4cCLqdMWJb53BrbRURjg/golden%20line.png)\n\n\n\n\n1) Blockchain is a record or registry of transactions and information shared passed out digitally to all the communication points within the network, these information cannot be edited or tampered with and are constantly kept up to date and accessible by all communication points which are all linked to the blockchain network.  These communication points are called <b> nodes </b> and could be any network device that could communicate with other network devices all linked together in the blockchain network.  These features of the blockchain network make it safer than other systems when it comes to carrying out transactions as there is transparency and full knowledge of all transactions carried out as information is accessible by every single node or individual network device situated within the network and no permission needs to be taken from anyone to access the informations regarding transactions made, such as names involved in the transactions, dates and even amount transacted. And so all the activities in the blockchain are decentralized and distributed in encrypted patterns. \n##### Parts of a blockchain\nA blockchain is normally composed of three parts: <b> Block</b>, <b> Node </b> and <b> Miner </b>. \n* **BLOCK**\nA block is where all the information of the transactions within the blockchain is stored as data and are interconnected with other blocks within the network. \nEach block has a unique hash assigned to it which is preceded by a nonce to ensure it cannot be edited. A hash is the building block of the blockchain network composed of strategic numbers and letters (beginning with a zero) of a particular length that indicates if the data present in a block is valid. A hash is formed in details with the data present in the first block thus leading to the encrypted and non-tampering characteristics of the blockchain, but if the data in a block is altered, a new hash would be generated. \nA block is therefore composed of its data, hash and a nonce. \n\n\n* **NODE**\nNodes are interconnected means of communication, which are network devices, that are kept up to date within the blockchain network. A node stores blocks and transmits new transaction data from its new blocks to other nodes within the blockchain network to keep them updated. \n\n\n* **THE MINER**\nThe miner is an actor with the sole aim of introducing new blocks into the blockchain network. This helps with the updating of the nodes of the blockchain network after a successfully completed transaction. \n\nhttps://cdn.steemitimages.com/DQmcRZ8XkdNzicPR9Qz7mWc79qtvpxJbN6EiCYDPmcZZCYg/red%20line.png\n### <center>  2. Describe one type of blockchain. </center>\nhttps://cdn.steemitimages.com/DQmcRZ8XkdNzicPR9Qz7mWc79qtvpxJbN6EiCYDPmcZZCYg/red%20line.png\n\nThere are four different types of blockchain; <b> public blockchain, private blockchain, hybrid blockchain </b> and <b> blockchain consortium </b>\n\nFor this assignment I will be describing the public blockchain. \n\n\n**PUBLIC BLOCKCHAIN:**\n\nThe public blockchain is a decentralized blockchain that is not put under any authoritative body, where transactions or information in the network are not controlled by any person or financial body. There are no restrictions from joining the blockchain by any member of the public and all nodes within the blockchain network have full access to all the transactions and data being carried out in the network. All transaction data from anyone within the blockchain is accessible to any and everyone, this transparency within the network helps in making it one of the most used type of blockchain. \n\n\nhttps://cdn.steemitimages.com/DQmcRZ8XkdNzicPR9Qz7mWc79qtvpxJbN6EiCYDPmcZZCYg/red%20line.png\n### <center>  3. Explain the advantages and disadvantages of the type of blockchain you chose. </center>\nhttps://cdn.steemitimages.com/DQmcRZ8XkdNzicPR9Qz7mWc79qtvpxJbN6EiCYDPmcZZCYg/red%20line.png\n\n\n ##### </center> ADVANTAGES OF PUBLIC BLOCKCHAIN </center>\n\n1) Since this blockchain is open to the general public, the number of individuals within the blockchain would be large bringing a larger community of people together for larger areas and forms of transactions. \n2) Transactions within the blockchain are always updated across all the nodes within the blockchain and are constantly accessible by all, hence transparency in the network. \n3) It is decentralized so no third party agencies need to intervene in the activities of the running blockchain. \n\n\n##### <center> DISADVANTAGES OF PUBLIC BLOCKCHAIN </center>\n\n\n1) Although having a large number of people in the blockchain is an advantage, too much network activities in the blockchain would cause the blockchain network to be slower than other types of blockchain. \n\n2) As the blockchain is open and available to all members of the public, cases of fraud would be on the rise as a fraudster could invade the network with anonymous identities and defraud other users.\n\n\n\nhttps://cdn.steemitimages.com/DQmcRZ8XkdNzicPR9Qz7mWc79qtvpxJbN6EiCYDPmcZZCYg/red%20line.png\n### <center> 4 .Visit [Blockchain Demo](https://andersbrownworth.com/blockchain/blockchain), and what did you learn from that page? (screenshot required) </center>\n\n\n\n\n\n\nhttps://cdn.steemitimages.com/DQmcRZ8XkdNzicPR9Qz7mWc79qtvpxJbN6EiCYDPmcZZCYg/red%20line.png\nOn opening the page [Blockchain Demo](https://andersbrownworth.com/blockchain/blockchain) I was first visited with the home page as thus:\n \n\n![Screenshot_20210920-044155_1.png](https://cdn.steemitimages.com/DQmP7RkczJrmdHYQNzd1v5wHocmgZcTmofLmybHP3fGaRHy/Screenshot_20210920-044155_1.png)\n\n\n![Screenshot_20210920-044206_1.png](https://cdn.steemitimages.com/DQmYA38E9F4uqofHRWY1ey6tAR1UTpNXehFWQnCTYjDYZFD/Screenshot_20210920-044206_1.png)\n\n\n![Screenshot_20210920-044218_2.png](https://cdn.steemitimages.com/DQmbSiJyZ6cWUBDjg3LG5ENxUfbRtbxpunQBCGmeDjZeMY8/Screenshot_20210920-044218_2.png)\n\n\n<center><sub> Screenshots taken from [Blockchain Demo](https://andersbrownworth.com/blockchain/blockchain) </sub></center>\n\nAnd from what I learnt I know that a blockchain is made up of series of blocks transmitting the same transaction data with each having unique hash assigned to them while still retaining data of the previous hash with unique nonce. \nAnd looking at the page I saw five different blocks of a blockchain each having five different nonce, previous hash and hash all valid because they all have a hash beginning with series of zeros and are similar in length. \n\n###### Block 1: \n<sub> Nonce: 11316 </sub>\n<sub> Data: </sub>\n<sub> Previous-hash: 0000000000000000000000000000000000000000000000000000000000000000 </sub>\n<sub> Hash: 000015783b764259d382017d91a36d206d0600e2cbb3567748f46a33fe9297cf </sub>\n\n###### Block 2: \n<sub> Nonce: 35230 </sub>\n<sub>Data: </sub>\n<sub> Previous-hash: 000015783b764259d382017d91a36d206d0600e2cbb3567748f46a33fe9297cf </sub>\n<sub> Hash: 000012fa9b916eb9078f8d98a7864e697ae83ed54f5146bd84452cdafd043c19 </sub>\n\n###### Block 3: \n<sub> Nonce: 12937 </sub>\n<sub> Data: </sub>\n<sub> Previous-hash: 000012fa9b916eb9078f8d98a7864e697ae83ed54f5146bd84452cdafd043c19 </sub>\n<sub> Hash: 0000b9015ce2a08b61216ba5a0778545bf4ddd7ceb7bbd85dd8062b29a9140bf </sub>\n\n\n###### Block 4: \n<sub> Nonce: 35990 </sub>\n<sub> Data: </sub>\n<sub> Previous-hash: 0000b9015ce2a08b61216ba5a0778545bf4ddd7ceb7bbd85dd8062b29a9140bf </sub>\n<sub> Hash: 0000ae8bbc96cf89c68be6e10a865cc47c6c48a9ebec3c6cad729646cefaef83 </sub>\n\n###### Block 5: \n<sub> Nonce: 56265 </sub>\n<sub> Data: </sub>\n<sub>Previous-hash: 0000ae8bbc96cf89c68be6e10a865cc47c6c48a9ebec3c6cad729646cefaef83 </sub>\n<sub> Hash: 0000e4b9052fd8aae92a8afda42e2ea0f17972ea67cead67352e74dd6f7d217c </sub>\n\n\nI then input data in the first block, a word \"star\" and this invalidates all the blocks in the blockchain as they turn red from their previous green colour as they no longer bear the same data. Their nonce remain the same but the hash does not begin with zeros. Because altering data in a block then invalidates the block and the subsequent blocks after it . \n\n\n![Screenshot_20210920-051342_1.png](https://cdn.steemitimages.com/DQmYXb3n8NRyM4L7w9TgyjCsKdk37JXCibVNaz7L8zvXPM8/Screenshot_20210920-051342_1.png)\n\n\n\n![Screenshot_20210920-051352_1.png](https://cdn.steemitimages.com/DQmQ8XLeJ6udVyz3kyTFntEkZKpTU59ACPgpjmjoC1rBFuM/Screenshot_20210920-051352_1.png)\n\n\n\n\n![Screenshot_20210920-051407_1.png](https://cdn.steemitimages.com/DQmR17XhobhuzZMxV9JCaGb7fqvecqj5xWv444cazsQkD2R/Screenshot_20210920-051407_1.png)\n\n<center><sub> Screenshots taken from [Blockchain Demo](https://andersbrownworth.com/blockchain/blockchain) </sub></center>\n\nTo validate the blocks I input the same data in the first block \"star\" to other blocks and click on mine and all blocks thereafter became validated. \n\n\n![Screenshot_20210920-053453_1.png](https://cdn.steemitimages.com/DQmYuAdFxr39jt6sVaL1wgRnaG2vrqqk4XgXNeNjeK9sosN/Screenshot_20210920-053453_1.png)\n\n\n![Screenshot_20210920-053506_1.png](https://cdn.steemitimages.com/DQmPDY8BDmot4p8HVLx3A3aB5bqB3vsPEPgxTxTBCUicvfp/Screenshot_20210920-053506_1.png)\n\n\n![Screenshot_20210920-053520_1.png](https://cdn.steemitimages.com/DQmXhxAgDN3gpQvph7pxEmhzWNeDfk7wv7JjfZxg1BDS1Pr/Screenshot_20210920-053520_1.png)\n\n<center><sub> Screenshots taken from [Blockchain Demo](https://andersbrownworth.com/blockchain/blockchain) </sub></center>\n\nThis then causes the nonce to change and the hash changes too and then begins with zeros meaning it is valid. \n\n\nhttps://cdn.steemitimages.com/DQmcRZ8XkdNzicPR9Qz7mWc79qtvpxJbN6EiCYDPmcZZCYg/red%20line.png\n### <center>  5. Explain the advantages and disadvantages of using blockchain technology. </center>\nhttps://cdn.steemitimages.com/DQmcRZ8XkdNzicPR9Qz7mWc79qtvpxJbN6EiCYDPmcZZCYg/red%20line.png\n\n\n###### </center> ADVANTAGES OF BLOCKCHAIN TECHNOLOGY </center>\n\n1) Due to the decentralized nature of the blockchain system, no third party agencies or company can intervene in the transaction activities running in the blockchain, hence there is direct communication between the user and the network without needing to ask or take permissions, making information exchange faster and saving time. \n\n2) Blockchain networks are interconnected with all the nodes in the network and transactions are always updated and as such constantly accessible by everyone in the network from wherever they are. This brings about transparency in the network and easier and faster transaction with the network. \n\n3) The interconnected block networks and the encrypted non editing characteristic makes blockchain very safe from hackers as commands can't be edited hence assets are kept safe, creating a platform where trust could be maintained. \n  \n\n\n###### </center> DISADVANTAGES OF BLOCKCHAIN TECHNOLOGY </center>\n\n1) As data written in the blocks can only be written and not reversed, once a wrong transaction has been made, it is impossible for the funds to be transferred back to the sender.\n2) Losing the access key of one's blockchain account leads to permanent loss of the accounts and the assets within as there is no way of regaining the lost key. \n3) The blockchain network could be very slow atimes based on the population of nodes in the blockchain and the capacity of the network. \n4) Blockchain technology is not totally secure from the attacks of con-artists and fraudsters and users need to understand this. \n\n\n\n\n![ruler2.png](https://cdn.steemitimages.com/DQmaZg8w97ju4oNKL8J7Vh9RNv59WfRn3han8VPWJduUiUg/ruler2.png)\n#### <center><sub> CONCLUSION </center>\n\n![ruler2.png](https://cdn.steemitimages.com/DQmaZg8w97ju4oNKL8J7Vh9RNv59WfRn3han8VPWJduUiUg/ruler2.png)\n\n\nBlockchain is an advanced technology which is secure and fast and could be used in the daily transactions of users. It has good characteristics one of it being it's transparency, but users should also keep in mind that the blockchain is not completely fraud-proof and should know more about blockchain network in other to reduce the probability of being defrauded. \n\n\nThank you @liasteem for this wonderful assignment and the opportunity to be a part of it. And I know it would be of good impact in my transactions. \nI'm inviting @destinyjoseph, @bensonsomto and @chibuokem to participate in this program. \n \n\n\n</div></p\n<p><div class=\"text-center\">\n</div></p>\n<p><div class=\"text-justify\">\n</div></p>\n<p><div class=\"text-center\">\n</div></p>\n<p><div class=\"text-justify\">",
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      "body": "Hello, welcome to Steemit.\n✿ ** I'm Svm038 from Steem Greeter Team. **✿\n\nYour Achievement 1 mission has been Confirmed. You can move on to the next task. You must share all achievement missions on [Newcomer Community](https://steemit.com/trending/hive-172186)\n\nDoing these achievement missions will increase the credibility of your account and make it easier for you to understand Steemit. You will also be able to win prizes.\n\nYou can become a member of the communities according to the topics you want to share.\n\n\nYou can find all achievement 2 missions here.\nhttps://steemit.com/hive-172186/@cryptokannon/achievement-1-mentor-by-cryptokannon-verification-through-introduction\n\n\n\nFollow @steemitblog to stay up to date with Steemit\n\nAnd many communities are waiting for you. Stay away from plagiarism.\n\n*Turkey representative*\n\nrate; 2",
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      "body": "Hi @otk firstly I'll **WELCOME** you wholeheartedly on this beautiful platform of STEEMIT.\nHere you will earn by producing some good quality content but keep in mind it should be your own I mean original content.\nSecondly I invite you [To complete your all Achivements tasks](https://steemit.com/hive-172186/@cryptokannon/achievement-tasks-resources-and-materials-newcomers-retention) in Newcomers community given by @cryptokannon.\nThese all tasks will enable you to know much about Steemit and you will get good experience of publishing quality content hence chances of getting reward will be increased.\nMoreover you will also learn that what is content etiquette and how to avoid from plagiarism,and also how to attract Authors on your Posts by applying Markdown.\nIn Short you will learn each and every rules and regulations of beautiful STEEMIT Platform.\n\nAt last I'll also suggest you some good communities where you can publish your content.Although there are many good Communities which you can join on the base of your interest,it depends upon you that in which kind of community you are interested but here I'll list some Communities and still if you find any problem in finding community do mention me surely I'll guide you.\n* [Newcomer's Community](https://steemit.com/trending/hive-172186)\n* [Steemit Nursery](https://steemit.com/trending/hive-142140)\n* [SteemitCryptoAcademy](https://steemit.com/trending/hive-108451)\n* [STEEMIT PAKISTAN](https://steemit.com/trending/hive-136998)\n* [WORLD OF XPILAR](https://steemit.com/trending/hive-185836)\n* [Steem Schools](https://steemit.com/trending/hive-152587)\n* [StockPhotos](https://steemit.com/trending/hive-109286)\n* [Beauty of Creativity](https://steemit.com/trending/hive-144064)\n* [SteemFoods](https://steemit.com/trending/hive-148497)\n* [Steem SEA](https://steemit.com/trending/hive-103393)\n***If you are under 30 steem power you can also apply*** [Steemit user support Program](https://steemit.com/hive-172186/@cryptokannon/list-of-steemit-users-under-30-sp-support-program-and-application-open)\nvery important Announcement for all of you I'll highlight it here you must also check this as it will help you in cryptoacademy you can read from here [Steemit Crypto Academy Beginners Package](https://steemit.com/hive-172186/@cryptokannon/steemit-crypto-academy-beginners-package).\n\n\nMoreover I'll also suggest you to follow [SteemitBlog](https://steemit.com/@steemitblog) in order to get all new updates on Steemit.\nRegards @arrowgate ! And have a nice day 🙂",
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      "body": "</div></p>\n<p><div class=\"text-justify\">\n\n###### Self intro:\n\nI am Kosi, a 20 year old 300lvl medical student in the University of Nigeria, Nsukka. I am from Enugu State. I am the second born and also the second son in a family of three.I am light skinned, 6” tall and with a slim physique. I’m an easy going and open minded kind of person. And I also like to see myself as a happy person.\n\n![IMG_6887.JPG](https://cdn.steemitimages.com/DQmXSn6f1A4KKZSfcpUbdB6eoKUuHCpajpFEqmKuRssiNv2/IMG_6887.JPG)\n\n\n###### Educational/Career Path:\nI am a 300 level medical student preparing for my first professional exams. My career was chosen for by both my parents and I, and I'll try my best in going very far and gaining as much knowledge as I could get in my career.\n\n###### Hobbies:\nI am a big football fanatic, I love playing and also watching the sport. I rep Manchester City anywhere, anytime. I play football and I'm also interested in basketball. I like trying out new things and listening to good music; the kind that makes one feel calm and relaxed. I also like to read books and learn new things everyday. I am a big fan of video games, trying out and completing various types; especially those linked to action and adventure. I would like to say I am someone with a good insight of crypto,it's rates,values and worths.\n\n###### Experiences with crypto:\nPersonally, I am somewhat good with technical analysis of the forex market and I haven’t really had much experience in the crypto world, just a little knowledge of the basics and a slightly good enough knowledge of it. I’m still in the learning process but I’ve come quite a long way in the learning process.\n\n\n\n###### How I got to know about steemit and why steemit:\nI got to know about steemit through some friends @emmanuel-malume and @alphafx was excited about having a platform where I'll get to meet new people, share ideas and opinions, learn and still earn from it.\n\n\n\n</div></p>\n<p><div class=\"text-center\">\n</div></p>\n<p><div class=\"text-justify\">",
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