Parchive
Parchive (a portmanteau of parity archive, and formally known as Parity Volume Set Specification) 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, but it is now commonly used for protecting any kind of data from data corruption, bit rot, and accidental or malicious damage. Despite the name, Parchive uses more advanced techniques that do not utilize simplistic parity methods of error detection and correction.
The original SourceForge Parchive project has been inactive since November 9, 2010. As of 2014, Par1 is obsolete, Par2 is mature for widespread use, and Par3 is an experimental version being developed by MultiPar author Yutaka Sawada.
History
Parchive was intended to increase the reliability of transferring files via Usenet newsgroups. Usenet was originally designed for informal conversations, and the underlying protocol, NNTP was not designed to transmit arbitrary binary data. Another limitation, which was acceptable for conversations but not for files, was that messages were normally fairly short in length and limited to 7-bit ASCII text.
PAR2
PAR2 may refer to:
Podcasts:
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by Brier
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by Praiera
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by Praiera
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by Praiera
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by Praiera
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by Pro Era
Spancil Hill
by: BrierLast night as I lay dreaming of pleasant days gone by
Me mind being bent on rambling, to Ireland I did fly
I stepped on board a vision, and I followed with a will
'Til next I came to anchor at the cross at Spancil Hill
It being on the 23rd of June, the day before the fair
When Ireland's sons and daughters and friends assembled there
The young, the old, the brave and the bold came, their duty to fulfill
At the parish church in Clooney, a mile from Spancil Hill
I went to see me neighbors, to see what they might say
The old ones were all dead and gone, the young ones turning gray
But I met the tailor Quigley, he's as bold as ever still
Ah, he used to mend me britches when I lived in Spancil Hill
I paid a flying visit to my first and only love
She's as white as any lily, gentle as a dove
And she threw her arms around me saying, "Johnny, I love you still"
As she's Nell the farmer's daughter and the pride of Spancil Hill
I dreamed I held and kissed her as in the days of yore
Ah Johnny, you're only jokin', as many's the time before
Then the cock, he crew in the morning, he crew both loud and shrill