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Does an un-confirmed Bitcoin transaction expire?

Posted on July 1, 2016 by Linewbie.com Posted in Bitcoin .

Once a transaction is on the blockchain, it is confirmed. That is the definition of “confirmed” in the bitcoin system. So a transaction cannot “sit on the blockchain” unless it is already confirmed.

You can broadcast your transaction to the peer nodes that you are connected to, and they can relay that transaction to the peer nodes that they are connected to, and so on until pretty much all nodes on the network have heard about your transaction. The nodes will store your transaction in their memory pool in case any peer requests it. It won’t be “on the blockchain” yet, but some websites might show you the transaction if they have heard about it from any of the nodes they are connected to.
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Looting of the Fox: The Story of Sabotage at ShapeShift

Posted on April 19, 2016 by Linewbie.com Posted in Bitcoin .

Bitcoin, as any system of man, exhibits together both the highest ideals of utopia, and the lowest residual trash of society.

[Note: some names & sensitive details have been changed]

Erik VoorheesThis is the story of how ShapeShift, a leading blockchain asset exchange platform, was betrayed. Not once, not twice, but three times in less than a month.

In total, nearly two-hundred thousand dollars in cryptocurrency was stolen by thieves within and without, not to mention the significant resources expended in its wake. Nevertheless, no customer funds were ever lost or at risk, a milestone for an industry pocked with past tragedy, and ShapeShift itself has adapted and rebuilt, humbled by the experience learned, and ever more resolute in its mission of safe, frictionless asset exchange.

In the spirit of Bitcoin’s openness, we wanted to share this story with the community; may you be informed, entertained, reflective, and ever-diligent in your own affairs.
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Decentralization, Scalability, and Fault Tolerance of Bitcoin

Posted on January 12, 2015 by Linewbie.com Posted in quotes & thoughts .
Posted by Stan Larimer & Daniel Larimer on January 12, 2015.
Bitcoin is all about decentralizing the control over money through objective consensus on ownership. What often gets lost in the discussion is the difference between decentralization, scalability, and fault tolerance. Bitcoin is an example of a decentralized system whose scalability is limited by the power of an individual node rather than the combined power of all nodes. This means that a system’s ability to become distributed for fault tolerance, decentralized for control, and scalable for performance are not linked together by the number of nodes. In fact we could say that attempts to combine these roles via the same mechanism will carry with it the combined limitations rather than the combined benefits. Hence economies of scale and free market competition will tend to minimize unnecessary fault tolerance (redundancy) while centralizing for performance. If we are not careful this will result in centralization of control.When the BitShares developers get a little uppity, I love to remind them that what they are doing is not exactly rocket science.But, while trying to find a way to communicate the architecture of BitShares to folks on other forums, I’ve stumbled on the following description, drawing on my past experience with continuously reconfiguring fault-tolerant flight control systems. (Yes I wrote a technical report with that title back before there was an Internet or even a word processor.) See if you buy this way of describing the BitShares architecture:
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Stripe will soon accept Bitcoin payments

Posted on April 20, 2014 by Linewbie.com Posted in Bitcoin, news .

Online payments company Stripe will soon allow its customers, who use its payments tools to accept credit card purchases online, to accept bitcoin payments as well, its CEO told Re/code on Wednesday evening. Stripe believes it is the first major online payments platform to support purchases made in bitcoin.

Up to now, Stripe merchants that wanted to accept bitcoin as a payment method would have to integrate with bitcoin-specific processors such as Coinbase or Bitpay.

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Zynga announces Bitcoin acceptance in game

Posted on January 4, 2014 by Linewbie.com Posted in games & gaming .

This morning, Zynga representative announced on reddit:

We wanted to share with the r/bitcoin community that Zynga Inc. (NASDAQ: ZNGA) is now conducting a Bitcoin test with BitPay (https://bitpay.com/[1] ), a leading Bitcoin service provider, in select Zynga.com web games.
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How to import very large sql dump via phpmyadmin

Posted on November 11, 2013 by Linewbie.com Posted in PHP, Programming .

Add this line

$cfg[‘ExecTimeLimit’] = 6000;
$cfg[‘LoginCookieValidity’] = 3600 * 9; // 9 hours

to phpmyadmin/config.inc.php

And Change php.ini

  • post_max_size = 750M
  • upload_max_filesize = 750M
  • max_execution_time = 5000
  • max_input_time = 5000
  • memory_limit = 1000M

And change my.ini

  • max_allowed_packet = 200M
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How to compare the content of two folders automatically

Posted on February 6, 2013 by Linewbie.com Posted in how to .

Many of us end up, inevitably, with so many files and folders that it is impossible to keep them under control without some specialized help. Luckily, as I’ll show you in a moment, under Linux there are several, very efficient solutions to this problem.

Multiple copies of many files, scattered all over the computer, waste space, create confusion, and slow down desktop indexers like DocFetcher. I have already explained how to find and remove the unwanted extra copies here.

When it comes time to clean up your folders and files, a common problem crops up: how can I find where duplicate files and folders exist between multiple directories? The problem is both more complex and much more common than it may appear at first sight. A directory may contain many, many levels of sub-directories, each with thousands of files of all sorts. Trying to figure out manually the differences between two directory trees like those could take days.
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Top 5 reasons to start experimenting with Linux

Posted on November 14, 2012 by Linewbie.com Posted in quotes & thoughts .

In the last couple of weeks we’ve seen the announcement or release of a number of new products: the iPad Mini, an updated version of the full-size iPad, and Microsoft’s Windows 8 and Surface tablet.

A lot less attention was paid to the October 18 release of one of the most widely-used Linux distributions, Ubuntu. That’s unfortunate, because Linux in its various flavors is a solid operating system. It’s even used by such major companies as Google on both their servers and their desktops.
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The day our mind became open sourced

Posted on April 26, 2012 by Linewbie.com Posted in open source .

I will remember therefore clearly the precise day my personal mind became open sourced. It had been a sharp and sun-drenched November day time in 1973. Following class within middle college, I known as up my closest friend, Bruce The nike jordan, and requested, “Can We come to play right now? ” Bruce responded, “Sure. inch I leaped on my personal red, one-speed Schwinn bike and biked such as mad both miles to Bruce’s home. I showed up happily breathless.

Bruce had been fun in order to play along with because he or she was continuously inventing brand new games in order to play, each indoors as well as outdoors. There is never the dull second at Bruce’s home. So whenever we sat right down to play Scrabble which day, Bruce automatically suggested: “Let’s every take 10 letters instead of 7. Which will improve the overall game play a great deal. ” We protested, “But the guidelines on the actual box from the game say that you are supposed to consider 7 characters. ”
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Mark Shuttleworth wants to turn canonical (ubuntu) into the next Apple Inc.

Posted on April 9, 2012 by Linewbie.com Posted in interviews, people .

Positive Reddish Head wear merely crested the particular $1 billion-revenue indicate together with practically $150 thousand inside income although Canonical, creator regarding Ubuntu Linux, nonetheless just isn’t rewarding right after more effective decades in operation.

Ubuntu president Indicate Shuttleworth claims… just what exactly?

He has received huge ideas regarding Canonical and also he has wanting to fix a more impressive difficulty: can easily a great available resource business generate income when that constantly offers the computer software apart at no cost and only fees regarding other stuff?
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Recent Posts

  • Does an un-confirmed Bitcoin transaction expire?
  • Looting of the Fox: The Story of Sabotage at ShapeShift
  • Decentralization, Scalability, and Fault Tolerance of Bitcoin
  • Stripe will soon accept Bitcoin payments
  • Zynga announces Bitcoin acceptance in game
  • How to import very large sql dump via phpmyadmin
  • How to compare the content of two folders automatically
  • Top 5 reasons to start experimenting with Linux
  • The day our mind became open sourced
  • Mark Shuttleworth wants to turn canonical (ubuntu) into the next Apple Inc.

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Recent Posts

  • Does an un-confirmed Bitcoin transaction expire?
  • Looting of the Fox: The Story of Sabotage at ShapeShift
  • Decentralization, Scalability, and Fault Tolerance of Bitcoin
  • Stripe will soon accept Bitcoin payments
  • Zynga announces Bitcoin acceptance in game
  • How to import very large sql dump via phpmyadmin
  • How to compare the content of two folders automatically
  • Top 5 reasons to start experimenting with Linux
  • The day our mind became open sourced
  • Mark Shuttleworth wants to turn canonical (ubuntu) into the next Apple Inc.

Categories

  • applications/software (26)
    • browsers (2)
    • development (1)
    • information management (1)
    • Mobility (1)
    • multimedia (5)
    • office suites (2)
    • security (6)
    • servers (6)
    • system (2)
  • audio/video/pics (3)
  • Bitcoin (3)
  • books & literature (1)
  • cms/portals (1)
  • desktop environments (7)
    • gnome (2)
    • kde (5)
  • events/shows (3)
    • interviews (1)
    • people (1)
    • surveys (1)
  • games & gaming (2)
  • general topics (4)
  • guides (112)
    • how to (105)
    • tips (87)
    • tutorials (86)
  • hardware (8)
    • desktop & laptop pc (5)
    • gadgets & mobiles (2)
  • howtoforge (47)
  • internet/web (4)
    • design & development (2)
  • linux and open source blog (49)
  • linux.com (76)
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    • business & foss (2)
  • other (26)
    • uncategorized (26)
  • Programming (3)
    • PHP (2)
  • quotes & thoughts (10)
  • random stuff (4)
    • cool stuff (3)
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  • review/preview/tests (7)
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