Adaptation of the blocking to the Internet of things: the main problems

About ten years ago, the number of devices connected to the Internet exceeded the number of network users. It was a turning point in the history of mankind - the Internet of people turned into the Internet of things. In this article we will consider the main problems of this phenomenon, as well as the possibilities of their solution with the help of blocking technology.
 
 
Adaptation of the blocking to the Internet of things: the main problems  
 
The concept of IoT (internet of things) was formed in 199? but at that time few could imagine how difficult it would be to integrate smart devices into everyday life.
 
 
As the capabilities of our machines, gadgets and other equipment ...
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How to write a decentralized multi-brokerage exchange for a day

How to write a decentralized multi-brokerage exchange for a day  
 
This article is a report on my participation in the second stage of the hakaton organized by karma.red . More information about the hakaton can be read at special page .
 
 
For those who like to read the code, not articles - project repository .
 
 
Fans of the video are also not offended :) In this video you can listen to a brief article, see how the exchange is implemented step by step and see its work live.
 
 
Article another participant in the hakaton from Vladivostok (the three guys from Vladik and one from ...
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Simple and powerful short-term smart contracts

Simple and powerful short-term smart contracts
 
Recently, smart contracts are widely used in the Ethereum network mainly for ICO and management of released tokens. Such contracts exist as much as necessary for the maintenance of projects, with months ensuring uninterrupted interaction with thousands of customers. We will call them long-term smart contracts.
 
However, certain tasks require that the contract is executed literally in minutes, after which it becomes unnecessary. And for each user may need special parameters, implement them in a large contract is not appropriate. Such contracts will be called short-term. Let's consider them in more detail ...
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What is a smart contract: a short guide

The idea of ​​smart contracts appeared back in 199? when Nick Szabo suggested using a distributed global code to store information about transactions. To date, they are considered a very promising technology that can greatly simplify and secure many areas of life. Let's see how the "smart" contracts are arranged and why they are needed.
 
 
What is a smart contract: a short guide  
 
A smart contract is a computer algorithm in a blocking environment. It allows you to enter into and maintain transactions, as well as automatically fulfill their terms.
 
The main "trick" of this technology is that it allows you to eliminate intermediaries from the ...
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Steyblkoiny: a short guide to

Despite the obvious advantages of crypto currency, they are still subject to high volatility, which greatly complicates their use as a means of payment or goods. To solve this problem, the so-called was created. stablecoins , resistant to fluctuations in the rate.
 
 
Steyblkoiny: a short guide to  
audit , conducted in September, could not determine exactly whether the project had a stated amount of USD. Oils in the fire poured and problems with the US regulator - so, in December CFTC has sent summons ...
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TON: Telegram Open Network. Part 2: The blockades, shuffling

TON: Telegram Open Network. Part 2: The blockades, shuffling
 
This text is a continuation of a series of articles in which I consider the structure (presumably) preparing for the release this year of the distributed network Telegram Open Network (TON). In of the previous part I described its most basic level - the way nodes interact with each other.
 
Just in case, let me remind you that I do not have any relation to the development of this network and will gather all the material from an open (although untested) source - document (there is also attached ...
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Use kubernetes to develop block projects on Hyperledger Fabric

Use kubernetes to develop block projects on Hyperledger FabricGood afternoon, dear Khabarovsk people.
 
I am a developer of the IBM scientific and technical center in Moscow. We are developing IBM products together with other laboratories around the world. If time allows and there is a desire, then we are allowed to use part of the working time for projects that are not the main employment. This approach expands the horizon and supports the creative spirit. For me, such an area is the development of block-based solutions on Hyperledger Fabric. Moreover, such projects have become in demand in our market.
 
I hope that the article will not be about blockade...
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How to fix the infrastructure after the tsunami

How to fix the infrastructure after the tsunami
 
While people start airplanes from the window, practice in the settings of proxy servers or even install dante on VPS , the various business faced with the real consequences of massive blockages in their processes.
 
You can treat different things in different ways, but when G Suite ceases to work or the cloud structure is like a natural disaster. And quickly rake the consequences for ordinary system administrators. Therefore in this article I share variants of a survival and rethinking of business processes - a kind, chronicles from fields. site Roskomnadzor...
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TON: Telegram Open Network. Part 1: Introduction, network layer, ADNL, DHT, overlay networks

TON: Telegram Open Network. Part 1: Introduction, network layer, ADNL, DHT, overlay networks
 
For two weeks Runet is making a noise about Telegram and the situation with its senseless and merciless blocking by Roskomnadzor. The ricochet touched many, but these are all topics for posts on Geektimes. Another thing surprised me: I still did not see at Habr any analysis of the TON network planned for the Telegram's launch - the Telegram Open Network. I wanted to fill this gap, because there is something to learn there - even despite the absence of official statements about him.
 
Let me remind you - there are rumors that Telegram has launched a very large-scale closed ICO, having already collected ...
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The question of a million is

Perhaps many of you were wondering: how will the behavior of a smart contract change if its data weighs hundreds of megabytes and stores hundreds of thousands or millions of records? Will the transaction go up? How will this affect the network as a whole? Will some types of variables in solidity cope with a similar task better than others? We decided to personally find out the answers to these questions and conduct an experiment in our private Ethereum network, simulating the described situations. What of this turned out to read further in the article.
 
 
The question of a million is ...
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