Alexander Chepurnoy

The Web of Mind


How to set up and configure full Ergo node

posted in ergo


Smart Contracts for the People


Authenticated Dynamic Dictionaries, With Applications To Cryptocurrencies

posted in authenticateddatastructures, blockchain, cryptocurrency, scala


Scorex 2.0: A Full-Node View

RollerChain, a Blockchain With Safely Pruneable History

The Moral Character of Cryptocurrency-Related Work

posted in blockchain, cryptocurrency,

Cryptocurrency State Representation: Boxes vs Accounts

posted in bitcoin,, blockchain,, cryptocurrency,, ethereum, nxt,

Lagonaki, First Public Testnet on Top of Scorex, Has Been Launched!

posted in scorex


On Private Blockchains, Technically

posted in bitcoin, blockchain, nxt, scorex

Vandalizing on Ethereum Blockchain

posted in ethereum

Towards a New Frontier of The Smart Contracts: Hawk and Enigma

posted in contracts,, enigma, hawk,, smart

On the Way to a Modular Cryptocurrency, Part 2: Stackable API

posted in cryptocurrency, scorex,

On the Way to a Modular Cryptocurrency, Part 1: Generic Block Structure

posted in scorex

A Cryptocurrency Architecture

posted in bitcoin,, cryptocurrency,, nxt,, scorex

Phasing Transactions in Nxt Part 1: Introduction, Phasing-Safety

posted in nxt,, phasing, transactions

Voting System guide for developers & experienced users

posted in nxt

Scorex - Ultracompact Cryptocurrency Engine for Hackers

posted in scorex

CAP Theorem and The Blockchain as The Database

posted in blockchain


Forging Simulation Tool For a Proof-of-Stake Cryptocurrency

posted in cryptocurrency, haskell, nxt

Inside a Proof-of-Stake Cryptocurrency part 4: The Executable Forging Simulation

posted in cryptocurrency, haskell, nxt

Inside a Proof-of-Stake Cryptocurrency part 3: A Local Ledger

posted in cryptocurrency, haskell, nxt

Inside a Proof-of-Stake Cryptocurrency part 2: Forging Algorithm

posted in cryptocurrency, haskell, nxt

Inside a Proof-of-Stake Cryptocurrency part 1: Basic Structures

posted in cryptocurrency, haskell, nxt

Inside a Cryptocurrency / Inside The Nxt - announce

posted in cryptocurrency, haskell, nxt

Shareholders Meeting via Blockchain in 20 Lines of Code

posted in nxt, scala

Faster Cosine Similarity Between Two Dicuments With Scala&Lucene

posted in lucene, scala,

Investigating Namecoin Database Pt. 1 : Introduction & Objects Counting

posted in cryptocurrencies,, namecoin

Flattening Scala Futures(Future[Future[T]] --> Future[T])

posted in scala


Learn Play! Framework by Example

posted in playframework,scala

Console Applications with Play Framework 2.x

posted in playframework,, scala

How to remove task dependency in Gradle

posted in gradle

Scala Clients for BTC-e Trade and Public Data APIs (My First Opensource Released)

Why Scala+PlayFramework Could Be The Best Choice For Your Startup

posted in playframework, scala

Play2+Morphia: how to avoid 'can't parse argument number interface' error

posted in playframework

Akka-based Data Extraction System Design

posted in akka, playframework, scala

Play Framework (v. 2.1): How to Test Actions Processing Binary Streams and Set Content Type for FakeRequest

posted in playframework, scala

Valid Scala vs. valid HTML : Play views vs. Lift Views

posted in lift, playframework, scala


Nutch 1.6 is coming

posted in nutch

Open Information Land Tightens, Digg Has No RSS Now.

How to Make Blekko Your Default Search Engine in Firefox

How to Install Hadoop 1.0.3 on Cluster (+Nutch)

posted in big, data, hadoop,, nutch,

Why Google+ Profile Sitemaps is Privacy Issue

posted in googleplus

Google+ Hack - How to Get 440M Profile URLs

posted in googleplus

Webservice with Groovy and Restlet

posted in groovy

Happy 10th Birthday Nutch

posted in nutch

Essential books for software developer

posted in books