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RT @madfox1234: We have a winner of July (II) Nxter Magazine's puzzle! Account ARDOR-RAK5-LTC4-VCYF-8V2V4 won his 500 $IGNIS sponsored by @…


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The answer to this kakuro puzzle opens up an Ardor account full of 500 IGNIS cryptocurrency and belongs to the first person to solve the puzzle. Published by Nxter Magazine and sponsored by Ardor / Nxt Group - http://ow.ly/GRzR30kVPiH



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July 13, 2018, 1:24 a.m.

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TWITTER

The answer to this Japanese #kakuro #puzzle opens up an #Ardor account full of 500 $IGNIS #cryptocurrency and belon… https://t.co/svbLZUkHZe


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$NXT still holds position as one of the most prosperous #ico with 1,477,000% return on investment. #cryptocurrency https://t.co/HkmdxQqomr


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RT @madfox1234: Congratulations @Cr0wn_Gh0ul & @jtobcat ! The crossword from July (I) Nxter Magazine - Korean Mood - was solved! Winner's…


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RT @Blockchainisra1: Go #ardor #blockchainnation @lioryaffe #startupnation @Ardor_Nxt_Group @ArdorPlatform https://t.co/orGos8s82d


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#Nxter News July (II) keeps you up to date with last week's $NXT $IGNIS #Ardor #blockchain ecosystem movements in… https://t.co/oMXmBePmU3


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I want to warmly welcome my #crypto friend @MrV_777 to Twitter. He contributes to $ARDR $NXT $IGNIS on a daily basi… https://t.co/8RfUlNw7q3


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I expected keynote from @officialmcafee but @OverstockCEO is onstage talking about #blockchain and p2p lending, vo… https://t.co/pcUelaw87Q


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RT @TheCryptoWoman: I arrived at @BWCevent in Atlantic City with #solar panel and #raspberrypi. I'll be looking for sun and sand to do a li…


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RT @madfox1234: Nice articel! It seems @Nasdaq shows special interest to @ArdorPlatform https://t.co/3P9YolVtKO $ARDR $IGNIS $NXT


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RT @AvdiuSazan: Just now on #Ardor Blockchain: Childblocks of $IGNIS $AEUR & $BITS verified by parent chain $ARDR https://t.co/jYFsoJvIVr h…


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Here is a brief video overview of #Ardor #blockchain. If you want to know it all in a nutshell, take a look: https://t.co/njwVUzavwa $ARDR


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RT @trifficworld: #Triffic rocks for it has an understandable and solid use case: https://t.co/8WCvBfXBKR. #Ardor rocks because it's the b…


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RT @veronicatorras: At @Jelurida we see that startups are facing this obstacles, but when we present @ArdorPlatform they become astonished.…


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Nxter News – Июль 2018 (II): У Земли достаточно ресурсов, чтобы удовлетворить потребности каждого человека, но не его жадность

Июль (II)   Добро пожаловать, дорогие Некстеры и другие последователи! Если вы проживаете в Северном полушарии, а скорее всего, так и есть, то у вас начался сезон отпусков. Происходит меньше событий, о которых стоило бы написать, больше времени можно провести с семьей. Верно? Нам, естественно, очень приятно, что вы читаете статью, но за вами ведь ... Read more The post Nxter News – Июль 2018 (II): У Земли достаточно ресурсов, чтобы удовлетворить потребности каждого человека, но не его жадность appeared first on NXTER.ORG.

July 12, 2018, 8:06 a.m.
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RT @AvdiuSazan: Ardor Hopes to Solve the Scalability Issues in the Way of Blockchains’ Mass Adoption https://t.co/kymuU7aeVH #Ardor #Blockc…


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Nxter News – Julio 2018 (II): La Tierra Proporciona lo Suficiente para Satisfacer las Necesidades de Cada Persona, pero No la Codicia de Todos

Julio (II)   ¡Bienvenidos apreciados Nexteros y resto de seguidores! Sí, hemos entrado en la temporada de vacaciones, si es que estás en el hemisferio norte. Menos cosas suceden, menos acerca de las que escribir, más tiempo para pasar con la familia. ¿No es así? Pese a todo, te agradecemos que nos leas, pero ¿está tu hijo ... Read more The post Nxter News – Julio 2018 (II): La Tierra Proporciona lo Suficiente para Satisfacer las Necesidades de Cada Persona, pero No la Codicia de Todos appeared first on NXTER.ORG.

July 11, 2018, 6:50 p.m.
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TWITTER

After receiving many inquiries about the Jelurida Public License and the 10% airdrop requirement to $NXT or $IGNIS… https://t.co/98EJu5SbRX


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Set up and run an #Ardor node. Bounty program still ongoing until end of July. https://t.co/ZF80gENFxF #decentralized #network


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RT @OKEx_: Our biggest fans this week: @PAZULDORAGON, @NxtCommunity, @ArdorPlatform. Thank you! via https://t.co/y9IgmePRb7 https://t.co/Iz…


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#Nxt is indeed the first #blockchain (launched in 2013) that relies entirely on #Proof-of-Stake consensus. And it'… https://t.co/OF2ST3aDCs


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RT @Globalnvest_: @Jelurida @IGNISguide #Ignis #Holders submit a request for #coinspot to add $ignis for #Fiat pairing. They already have $…


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RT @MrV_777: @BryceWeiner #NXT is a battle tested PoS too (I even think it was the first 100% PoS coin & written from scratch). It is igno…


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RT @AvdiuSazan: Ardor Blockchain Scaling Solutions - Pruning, Snapshots, Sub-nets and Lightweight Contracts Speaker: Lior Yaffe @lioryaffe,…


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#Ico review and full analysis of upcoming #Ardor child chain #Dominium - https://t.co/1W6BdFZMnw


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RT @alexpfeiffer: Students at work - First Milestones reached!The #ardor node is interacting with the #website - we can vote on the website…


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RT @AvdiuSazan: How to Use Blockchain to Build a Scalable Database? Innovative #blockchain developers are working hard to find solutions to…


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The success of any community is in its ability to work together and get things done. #ANG Working together for… https://t.co/QW2Kg7nbxK


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#ANG is happy to sponsor @madfox1234, the “Puzzle Maker” from @Nxter_org and latest #kakuro - solve to unlock an ac… https://t.co/TzQw3W3AVt


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Nxter News – July 2018 (II): https://t.co/bqkbI7I3lr $ARDR $NXT $IGNIS #blockchain


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Nxter News – July 2018 (II): Earth Provides Enough To Satisfy Every Person’s Needs, But Not Every Person’s Greed

July (II)   Welcome, dear Nxters and other followers! Yes, we have entered the holiday season, if you are in the Northern hemisphere which you likely are. Less is happening, less to write about, more time to spend with the family. Right? Well, of course, we do appreciate you reading this, but is your kid ... Read more The post Nxter News – July 2018 (II): Earth Provides Enough To Satisfy Every Person’s Needs, But Not Every Person’s Greed appeared first on NXTER.ORG.

July 10, 2018, 9:35 a.m.
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TWITTER

#ETHEREUM, #Jelurida , and The Business Of Blockchain. Blockchain as a Service is taking shape, with Jelurida posi… https://t.co/S9sGeSBmd6


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RT @CryptoDemetrius: Just saw @elonmusk troll #Ethereum saying scambots were 1st to catch attention - here's some tech that is up your alle…


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RT @AvdiuSazan: Still Don’t Understand Proof of Stake? - https://t.co/T2aLimkHMx $NXT


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RT @hyde_stevenson: An #app that rewards you for using it ! They just signed a contract with #Uber ! #Ardor #Blockchain #technology #altc…


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RT @1aioCom: 🆕 New Ardor $ARDR, Ignis $IGNIS event! 10 July 2018 Meetup Source: https://t.co/Wvl6t55CKn https://t.co/DNOchkzjy9


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RT @lioryaffe: I just published “Random Number Generator in Contracts” https://t.co/txAx1jCOOS


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RT @trifficworld: Ardor vs Ethereum - https://t.co/8WCvBfG0mh decided to use the best technology for its purpose, instead of using the best…


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How about it? Our #Korean $ARDR $NXT #Nxter newsletter has been published> https://t.co/oYubwX83cE - Thanks Ardorba… https://t.co/6Nw3DJPsIH


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RT @Prashan79378470: Nxt has all my support whn we discuss a true Blockchain Platform. Ths deserves to be the next @ethereum One coin tht…


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RT @lioryaffe: Congratulations to all the new born blockchain projects! Sorry to say, your tech is already obsolete since the single ledger…


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Nxter News – 2018년 (1주차): 진정한 힘은 비슷한것이 아니라 다름에서 부터 나옵니다.

string(4) "post" string(4) "post" string(4) "post" string(4) "post" string(4) "post" string(4) "post" string(4) "post" string(4) "post" string(4) "post" string(4) "post" string(4) "post" 7월 (1주차)   친애하는 Nxter 구독자 및 팔로워 분들 환영합니다. 모든 사람이 다르다는것을 깨닫는것은 좋은 일입니다. 우리 커뮤니티에는 미국, 유럽, 중국, 한국, 러시아 등 전세계 여러곳에서 활동중인 Nxter가 있습니다. 이런 다양성은 어떻게 보면 우리가 극복해야할 방대한 사고방식과 문화가 있다는 것을 의미하지만, 우리는 충분히 받아들이고 있습니다. 그리고 이 다양성은 우리의 강점이 될것입니다. 항상 같은사람, 반복되는 일이 ... Read more The post Nxter News – 2018년 (1주차): 진정한 힘은 비슷한것이 아니라 다름에서 부터 나옵니다. appeared first on NXTER.ORG.

July 7, 2018, 6:26 a.m.
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Nxter News – 2018년 (1주차): 진정한 힘은 비슷한것이 아니라 다름에서 부터 나옵니다.

7월 (1주차)   친애하는 Nxter 구독자 및 팔로워 분들 환영합니다. 모든 사람이 다르다는것을 깨닫는것은 좋은 일입니다. 우리 커뮤니티에는 미국, 유럽, 중국, 한국, 러시아 등 전세계 여러곳에서 활동중인 Nxter가 있습니다. 이런 다양성은 어떻게 보면 우리가 극복해야할 방대한 사고방식과 문화가 있다는 것을 의미하지만, 우리는 충분히 받아들이고 있습니다. 그리고 이 다양성은 우리의 강점이 될것입니다. 항상 같은사람, 반복되는 일이 ... Read more The post Nxter News – 2018년 (1주차): 진정한 힘은 비슷한것이 아니라 다름에서 부터 나옵니다. appeared first on NXTER.ORG.

July 7, 2018, 6:26 a.m.
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RT @Nxter_org: New blog post: #DYOR > https://t.co/TgFIsAGuC6 "Let’s talk about the #blockchain platform that can be powered by the sun."…


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Many thanks @CryptoManiaks for reviewing $NXT on their website! #blockchain #cryptocurrency #Nxt https://t.co/6Qjx4KNu4P


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RT @bajodayo: Dear Investors, It’s Time To Face The Real Facts https://t.co/hi8oxV9OyJ via @nxter_org


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RT @Nxter_org: Don't let the heat get you! Relax with #Nxter News - July (1) in the shade #Russian: https://t.co/j1ynFO7Enp #Chinese: htt…


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Random Number Generator in Contracts

Ardor lightweight contracts have a fast and secure method for random number generation.Random Number Generator in Contracts. Image Credit: Nick Hillier from UnsplashBlockchain-based contracts often need to generate random numbers for use cases such as gaming, gambling, simulation and more.Furthermore, these random numbers must be non-predictable so that developers, users, and block generators cannot predict them in advance and use this knowledge to make a profit.The key to be able to generate reproducible non-predictable random numbers are:All nodes should use the same random number generator, this should be simple as long as all nodes use the same runtime engine such a JVM or EVM.All nodes should agree on the random seed; a unique number used to initialize the random number generator. As long as all nodes agree on the same seed, all nodes will generate the same reproducible sequence of random numbers.The seed should not be simple to predict in advance. If users can predict the seed they can adjust their actions to make the contract output favorable for their cause. For example, predict the chosen number in a roulette game.During normal operation, a blockchain generates data which is somewhat random like block ids or transaction ids. The problem is that a transaction id is simple to manipulate by the account submitting the transaction, and a block id is simple to manipulate by the block generator. This means that using this information alone to initialize a random seed will provide power users and block generators an unfair advantage.As we can see, since you cannot rely directly on data generated within the blockchain, generating this reproducible and non-predictable seed is not a simple task.You may ask, can we use some kind of Oracle contract to obtain random data from an external source (like random.org)? Sure we can, but this opens up other attack vectors like DNS spoofing or potential for a direct hack of random.org. In addition, it is expensive to write this data into the blockchain for later use by other contracts. With that in mind, who is financing the operation of this Oracle contract, and what are their motives?Another approach for generating random numbers, which is promoted by the Ethereum team, is Randao. The idea is to use a two-stage approach and a complex incentive structure to compensate users for registering random data on the blockchain. This idea is slow and expensive, and surely we can do better.Introducing the Ardor Lightweight Contract Random Seed GenerationFast forward to lightweight contracts. In the Ardor platform, we can use two properties unique to lightweight contracts.First, only specific nodes execute contracts. This provides us with a unique source of random data unavailable to other protocols, namely the contract runner node itself.Second, the ability to send encrypted messages is built natively into the Ardor blockchain. This allows users to provide random data directly to the contract runner account without revealing it to anyone else.Given these properties the contract can now compose the random seed from three different independent sources:The contract runner random seed, stored securely in the private node configuration.The trigger transaction encrypted seed, attached as an encrypted message to the transaction that only the contract runner account can decrypt.The block id, which only the the block generator can control.The contract runner concatenates and hashes these three sources of randomness together to generate a reproducible seed. This seed is difficult to predict as the account submitting the transaction and the block generator need to cooperate and collude with the contract runner. The block generator and the account triggering the contract cannot predict the random numbers alone.But as always with lightweight contracts, we still need to trust the contract runner not to cheat, and to verify this, the contract runner must share its secret random seed securely with a validator node before executing the contract. Validators can then repeat the seed calculation and verify that the contract runner indeed executed the contract stored in the blockchain and calculated the random seed according to the protocol. In this case, a multi-signature setup where the validator account needs to approve every transaction submitted by the contract runner provides extra protection.Lightweight contracts provide a simple and pragmatic solution to the complex problem of generating reproducible non-predictable random numbers.Learn more about Lightweight Contracts in Ardor.Random Number Generator in Contracts was originally published in Hacker Noon on Medium, where people are continuing the conversation by highlighting and responding to this story.

July 5, 2018, 7:42 p.m.
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Nxter News – Julio 2018 (I): La Fuerza Reside en las Diferencias, No en Las Similitudes

Julio (I)   ¡Bienvenidos apreciados Nexteros y resto de seguidores! Una realidad agradable e inspiradora es darse cuenta de que todos somos diferentes, lo cual es algo positivo. Nuestra comunidad se fortalece gracias su gran diversidad. Contamos con Nexteros activos en los EE.UU., Europa, China, Corea, Rusia y en muchos otros lugares en todo el ... Read more The post Nxter News – Julio 2018 (I): La Fuerza Reside en las Diferencias, No en Las Similitudes appeared first on NXTER.ORG.

July 5, 2018, 6:32 p.m.
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