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Parity Volume Set Specification

Parchive (a portmanteau of parity archive, and formally known as Parity Volume Set Specification[1]) is an erasure code system that produces par files for checksum verification of data integrity, with the capability to perform data recovery operations that can repair or regenerate corrupted or missing data. Parchive was originally written to solve the problem of reliable file sharing on Usenet,[2] but it is now commonly used for protecting any kind of data from data corruptiondisc rotbit rot, and accidental or malicious damage. Despite the name, Parchive uses more advanced techniques that do not use simplistic parity methods of error detection and correction. As of 2014, PAR1 is obsolete, PAR2 is mature for widespread use, and PAR3 is an experimental version being developed by MultiPar author Yutaka Sawada.[3][4][5][6] The original SourceForge Parchive project has been inactive since November 9, 2010.[7]

Disc rot is a phrase describing the tendency of CD or DVD or other optical dis…

Private multicurrency Blockchain Platform

System requirementsLinux: 64-bit, supports Ubuntu 12.04+, CentOS 6.2+, Debian 7+, Fedora 15+, RHEL 6.2+.Windows: 64-bit, supports Windows 7, 8, 10, Server 2008 or later.Mac: 64-bit, supports OS X 10.12 (we hope to support earlier versions soon).512 MB of RAM1 GB of disk space If you don’t have one of these available, you can rapidly deploy MultiChain on Microsoft Azure. We also recommend Digital Ocean for cheap and quick cloud instances.
MultiChain extends the Bitcoin Core API with new calls and functionality

Did you hear about the MultiChain, in simple words this API extends Bitcoin Core API.
Accessing the API To access MultiChain’s API, use the included multichain-cli command-line tool or any other JSON-RPC client. (MultiChain is compatible with any API library developed for Bitcoin Core.) The API credentials for each blockchain are stored in the ~/.multichain/[chain-name]/multichain.conf file and read by multichain-cli. These credentials are randomly generated the first time that …

Introduction To Microsoft's Coco Framework For Blockchain Applications

"Nowadays, we all are going through the boom of Blockchain technology. There is a lot of information coming our way, regarding implementation and adoption of this technology. So far, we are aware of blockchain technology, its implementation for public networks like bitcoin, and platforms for creating private blockchain network like Azure Ethereum Consortium Blockchain. If not, please go through my articles on Blockchain and Ethereum Consortium Blockchain Network."








Public blockchain network Members (nodes) are anonymous and have access to the ledger.They can participate to achieve consensus through POW.Consortium blockchain network Members are not anonymous, they are known to the network.Node operations are controlled by EVM (in case of Ethereum consortium blockchain)







Microsoft has come up with Coco (Confidential consortium) Framework to develop high-scale and confidential blockchain networks, by revisiting and combining benefits of both, public and conso…

“Always pass on what you have learned.”

Python 3.6.2 A just little about Python,  a piece o code wrote by Engler.

"m=332,11572553,5039593,4,332,117751617089,9482,482,8484861,107,4479420041,204009030;
d=lambda r,n=0,l=[]:r and d(r//26,r%26,l+[n])or l+[n];
j=''.join;
s=lambda l:j(chr(n+65)for n in l[1:])+' ';
print(j(s(d(w))for w in m[:6])+str(0x7e2)+'!'*3,j(s(d(w)).capitalize()for w in m[6:]),sep='\n')"



Credits: inside the code,

Orbital ATK

https://www.orbitalatk.com
The Cygnus spacecraft is an American automated cargo spacecraft developed by Orbital ATK as part of NASA's Commercial Orbital Transportation Services (COTS) developmental program. It is launched by Orbital's Antares rocket or ULA's Atlas V and is designed to transport supplies to the International Space Station (ISS) following the retirement of the American Space Shuttle. Since August 2000 ISS resupply missions have been regularly flown by RussianProgress, as well as by the EuropeanAutomated Transfer Vehicle, and the JapaneseH-II Transfer Vehicle. With the Cygnus spacecraft and the SpaceX Dragon, NASA seeks to increase its partnerships with domestic commercial aviation and aeronautics industry.[7] Cygnus is the LatinizedGreek word for swan and a northern constellation.


Orbital ATK’s Space Systems Group is one of the world’s preeminent satellite builders and advanced space systems providers, offering a broad portfolio of products for commercial, mi…

SetResolution c#

Somethings no you need to reduced the resolution.

publicstring escaleCopy(Int64 ColorDepth)         { int sourcePicW = 0;  int sourcePicH = 0;
            sourcePicW = this.kpImageViewer1.Image.Width;             sourcePicH = this.kpImageViewer1.Image.Height;

int x = this.kpImageViewer1.drawing.selectedX; int y = this.kpImageViewer1.drawing.selectedY; int width = this.kpImageViewer1.drawing.selectedPrintWidth; int height = this.kpImageViewer1.drawing.selectedPrintHeight;
if (width <= 1 || height <= 1)             {                  width = sourcePicW;                  height = sourcePicH;             } if (x < 0)                 x = 0;