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Collection of my past articles and lecture about the #Nxt #Ardor #Ignis #blockchain proof of stake consensus algori… https://t.co/kp1FfAp8aA


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Proof of Stake Articles

Nxt/Ardor/Ignis Proof of StakeCollection of my articles and lectures about the subjectNXT Proof of Stake Theory vs PracticeCardano more secure than NXT?POS vs POW revisitedInvestigating Long Range AttackThoughts About Nothing at StakeNXT POS Block Skipping Attack MythNXT is the first pure POS coinhttps://medium.com/media/aaad3543ee089e128c1bb7d205a422d0/href

Dec. 20, 2018, 1:04 p.m.
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https://t.co/m70HjcOW4K


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#Ardor Online #Hackathon is ongoing & open to #Java #developers everywhere to compete in 3 challenges to automate c… https://t.co/aQWQS7Sv2L


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It's alive! #Ardor #blockchain $IGNIS #Nxterpuzzle https://t.co/gCPTDgaTKH


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This week's $IGNIS #giveaway contest has started. We proudly present: https://t.co/ypnzAsGvXt Collect words, log i… https://t.co/IMy6zXZAxS


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#Ardor #Ignis #LightweightContracts the contract runner node provides simple usage statistics about the performance… https://t.co/tb16gatBHL


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A Week With Mrv777

We are happy to announce this week's NxterPuzzle prize keyholder: mrv777! Insightful, helpful. And with a squirrel as his trademark. Here's a community man on a mission. You'll find him in ardornxt.slack, #developers, #marketing, #general, #helpdesk, pushing ideas, asking for ideas, helping others, proposing optimizations, or announcing another new update of his Ardor Lite app for Android, ... Read more The post A Week With Mrv777 appeared first on NXTER.ORG.

Dec. 19, 2018, 11:18 p.m.
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RT @ChangeNOW_io: Day 6 of #12DaysOfCryptmas is over, and the winner is @ArdorPlatform! Congrats, $ARDR fans - here's your link for SPECIAL…


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RT @Nxter_org: #Russian version: https://t.co/Trhg9YLMzZ #Spanish version: https://t.co/sZo75N0edg


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RT @TarascaD: The paintings are on the way to China, Lithuania and Switzerland! The winners of these global #auctions will receive them at…


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RT @NXT_France: L'actualité des #Nxter l Décembre 2018 ( ll ) - L'attitude est une petite chose qui fait une grande différence. #blockchain…


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RT @AvdiuSazan: Ardor Lightweight Contracts coming on mainnet January 10 2019 https://t.co/t5p15G8D4J $ARDR #Ardor


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Jelurida: RT petkodp: Did meme today :D https://t.co/AR6C8EtwDl


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NxtCommunity: RT petkodp: Did meme today :D https://t.co/AR6C8EtwDl


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RT @petkodp: Did meme today :D https://t.co/DKTooiCJ5I


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Jelurida: RT ArdorPlatform: We are excited to join blockfolio Signal and be a part of the best #crypto portfolio ma… https://t.co/qXo2gTjlW2


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IGNISguide: RT lioryaffe: We continue to focus on developing the best #Ardor #Ignis blockchain technology. Version… https://t.co/8l0TKNuEb8


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ArdorPlatform: RT lioryaffe: We continue to focus on developing the best #Ardor #Ignis blockchain technology. Versi… https://t.co/qTxKreW98U


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IGNISguide: #Ignis is your #KYC compliant #STO platform! Using Asset Controls, a company can issue shares on… https://t.co/tICtXX6O0z


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#Ignis is your #KYC compliant #STO platform! Using Asset Controls, a company can issue shares on #blockchain, yet i… https://t.co/Nk1xxw7tLV


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We are excited to join @blockfolio Signal and be a part of the best #crypto portfolio management app! Watch #Ardor… https://t.co/GDOTeOXiAC


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Jelurida: RT MrV_777: Beta version of Ardor Lite for Windows is now available! #Ardor #cryptocurrency #Blockchain… https://t.co/noqFXJQjvM


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The #Ardor / #Nxt #cryptocurrency community is actively working with the #blockchain and writing about it. Find the… https://t.co/bMY3YaVADG


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RT @MrV_777: Beta version of Ardor Lite for Windows is now available! #Ardor #cryptocurrency #Blockchain https://t.co/nZfbOYrytG https://…


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lioryaffe: We continue to focus on developing the best #Ardor #Ignis blockchain technology. Version 2.2.2 is about… https://t.co/swt06mOCrU


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We continue to focus on developing the best #Ardor #Ignis blockchain technology. Version 2.2.2 is about usability,… https://t.co/Fh6CtOqQh4


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RT @ChangeNOW_io: Time to start Day 6 of #12DaysofCryptmas! Pick your favorite crypto and the winner will get SPECIAL RATES for all exchang…


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RT @AvdiuSazan: A Beginners Guide To $NXT Cryptocurrency https://t.co/hRYKRuPQ3x


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RT: Jelurida: RT IGNISguide: Many situations could benefit from publicly recorded #votes on the #blockchain where… https://t.co/4hD04PY3Qk


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RT: lioryaffe: RT IGNISguide: Many situations could benefit from publicly recorded #votes on the #blockchain where… https://t.co/tzlhNlJwQS


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RT: Jelurida: RT TarascaD: The #Auctions have finished, with all the #paintings sold. Thanks to all the participant… https://t.co/BZPk5oIXdK


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RT @TarascaD: The #Auctions have finished, with all the #paintings sold. Thanks to all the participants, and congratulations to the winners…


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REDDIT

Ardor v2.2.1 is released - mandatory upgrade for all nodes!

[https://twitter.com/Jelurida/status/1074731548098920448](https://twitter.com/Jelurida/status/1074731548098920448)

/r/Ardor
Dec. 18, 2018, 12:57 p.m.

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Subscribe to Ardor's mailing list

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/r/Ardor
Dec. 18, 2018, 12:26 p.m.

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Many situations could benefit from publicly recorded #votes on the #blockchain where #private txs protect identitie… https://t.co/Yvj7FmDBAC


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RT @MrV_777: #Ardor continues to grow in the bear market with a new childchain with real world use case, on January 10. Also, Lightweight #…


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Join our general mailing list - stay up to date with all news about #Ardor, #Ignis and #Nxt, software upgrades, eve… https://t.co/RmaMbwDhHC


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NXT has 70 transactions per day.

[https://www.nxtportal.org/transactions](https://www.nxtportal.org/transactions) I try to keep my coins off exchange. NXT is my most valuable coin still on exchange. I own $10 USD of it. I went to NXT website to find a wallet and noticed on the explorer there's only 70 transactions per day. Hmm, I don't know if it's worth the hassle of withdrawing now. I guess I'll leave it on Bittrex and let them manage my $10 for me a it longer.

/r/Nxt
Dec. 17, 2018, 10:06 p.m.

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Selling a used car is always a pain. How can we make sure that the transfer of ownership and payment both complete… https://t.co/Ip0PoiA8Au


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My Used Car Sale Experience

Reflecting on Blockchain’s PotentialUsed Car — Photo by Court Prather on UnsplashI finally decided to sell my used car. Selling a used car is never a simple task: I found a buyer who liked the car, he took it for inspection and even forgave me for a small mark left by a bumper to bumper accident from a couple of years ago. We negotiated a fair price and were finally ready to make the transaction. He came from a-far, both of us were already short of time.The procedure to transfer the car ownership in the ministry of transportation database requires a visit to the post office. The post office verifies the identity of the seller as owner of the car, and the identity of the buyer, then submits the transaction and charges a fee.Then there’s the issue of the actual paymentSo we were sitting in the long slow queue to the post office desk and I contemplated the issue of the payment with myself. The buyer did not make up his mind before making the one hour journey to my house. We did not even negotiate the final price until today. So clearly he did not bring cash money. He also did not prepare any form of guaranteed payment like a bank note. This all was understandable and he seemed like a nice guy - I didn’t want to lose a good buyer after trying to sell my car for several months.But then I remembered the guy who tried to sell me his house last year, he also seemed like a nice guy, but his home turned out to be a modern version of Potemkin Village. After I somehow figured this out at the last moment, he turned ugly and threatened to sue me.I’m sure that the buyer thought the same. Should I transfer the money to Lior now while we are waiting at this annoying queue to save time? I really need to head back home to pick my daughter up from the day care. This Lior guy seems like a nice guy. But wait a minute, I read he is dealing with blockchain and crypto, these guys only care about their Lambos so surely can’t be trusted.Maybe we should get a lawyer to serve as an escrow? We both thought, but rejected this option immediately when remembering the amount of paperwork, time and fees involved.Can we make the payment and ownership change simultaneous?A naive answer would be, sure, the ministry of transportation will manage all car registries on a blockchain that the post office computers will use to transfer ownership using their private key. The identities of the buyer and seller would also be registered on this same blockchain by the government. The buyer and seller will develop and deploy a smart contract that only makes the payment to the car seller once ownership is transferred to the buyer.Seriously? I think that a Michio Kaku prediction would place the time when the Israeli ministries of transportation and interior would start managing vehicle registry and identities on the blockchain, somewhere between the time humans will learn how to warp space time and the time humans will start using Star Trek like teleportation something like 20,000 to 100,000 years from now.Can we design a practical blockchain based solution?Assuming that the seller would be willing to accept his payment in Ignis or AEUR (the Ardor Euro peg child chain), we can actually use a lightweight contract now to implement such semi-atomic swap without requiring all parties to use a blockchain. From the buyer and seller perspective this swap requires very little effort and minimal trust. If you would like to understand one way of implementing this, read on.The contract itself is rather simple. The buyer will first ask the contract to generate a secret and return the hash of the secret to the buyer. The buyer would then submit a payment to the seller as a phased transaction by the hashed secret provided. This transaction will also trigger the contract and supply the vehicle registration number, the seller id and the buyer id as parameters. The contract would start monitoring the ministry of transportation vehicle registry API every block for the car ownership change. Assuming such API exists, lightweight contracts are designed to interface with external systems for example by issuing Http requests. If some private information is required to complete the request, it can be stored in the contract runner configuration off-blockchain. Once the contract identifies a car ownership change, it will submit an approval transaction revealing the secret and causing the Ignis/AEUR payment to execute. If the ownership change does not take place during the next 24 hours, the payment is cancelled and the Ignis/AEUR amount is returned to the buyer.The seller still has to trust the contract to work correctly by approving the transaction on time so that he receives the payment. This can be mitigated for example by using more than one contract runner. The payment transaction can define an “or” condition between two hashed secrets when submitting the transaction. Another approach is to require that the contract runner is managed by a known entity which both the buyer and seller trust.As we can see, lightweight contracts provide a pragmatic solution to day-to-day problems. It does not take away trust issues completely but it isolates them into known entities and provides as much redundancy as required.

Dec. 17, 2018, 9:10 p.m.
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ICYMI: #Ardor v2.2.1 is released! This is a stable release and a mandatory upgrade for all nodes! #MPG #childchain… https://t.co/e9BNJyDXjL


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ICYMI: #Ardor is #Whitepaper of the week at https://t.co/epRL3Qe391! https://t.co/yBJAMFE6hp $ARDR #blockchain… https://t.co/8mzryyfHes


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RT @cryptoreportcom: Ardor up 11.03% last hour to $0.050174 $ARDR https://t.co/bPgUy00xfn @ArdorPlatform #cryptocurrency


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RT @zhanghuasheng95: The progress is 20.81%, I need NXT blockchain user support,@NxtCommunity https://t.co/mNYZYBfgvN


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RT @ZarkMuckerbarn: Love it. ;) #PowerOfPoS #solar #ProofOfStake #Nxt #blockchain https://t.co/96INBo2cHM


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I didn't win the auction of my favorite original painting of #crytpocollectable on the $IGNIS #blockchain auction b… https://t.co/xCekNbGAil


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RT @madfox1234: Awesome Week with @trifficworld is over and we have a winner! Congratulations ARDOR-5T97-HLEC-65V9-DUP7A ! 400 $IGNIS total…


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TFW you go to enter an account number for a banking/wire transfer or $crypto transfer: the slightest error could se… https://t.co/ADoBQRuedP


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Absolutely Rooted.

There’s more comments on this subreddit about wrestling than Crypto. Even the offical posts get no comments. We’re Doomed Captain !!!!

/r/Nxt
Dec. 17, 2018, 5:41 a.m.

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