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double spend - New Videos

What is Double SpendingWhat is Double Spending
00:02:20April 28, 2014, 5:17 am
What is Double Spending

Channel: Ofir Beigel & Total View: 17622

Add Date: April 28, 2014, 5:17 am & Duration: 00:02:20

Likes: 74 | Dislike: 5


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For a written tutorial visit:
A short and simple explanation about the nature of Bitcoin double spending and how to avoid it.

Bitcoin Double Spend Tool (Tutorial)Bitcoin Double Spend Tool (Tutorial)
00:02:19February 17, 2017, 4:29 pm
Bitcoin Double Spend Tool (Tutorial)

Channel: bitexploit & Total View: 17769

Add Date: February 17, 2017, 4:29 pm & Duration: 00:02:19

Likes: 1461 | Dislike: 24


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Learn how to double spend bitcoin using the online double spend tool.

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How To Double Spend Your Stuck Bitcoin Transaction with FSS-RBF

Channel: m1xolyd1an & Total View: 56360

Add Date: August 14, 2015, 6:22 pm & Duration: 00:08:22

Likes: 231 | Dislike: 29


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In this video I show you how to execute a double-spend using the node policy First-Seen-Safe Replace-By-Fee.
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Blockchain tutorial 22: Double spending, third party

Channel: & Total View: 2081

Add Date: May 1, 2017, 5:18 am & Duration: 00:04:13

Likes: 11 | Dislike: 5


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This is part 22 of the Blockchain tutorial explaining what double spending is.
The ecash system conceived by David Chaum is used as an example why third parties are used.
In this tutorial several examples are given why we should not use third parties.

In this video series different topics will be explained which will help you to understand blockchain.

Bitcoin released as open source software in 2009 is a cryptocurrency invented by Satoshi Nakamoto (unidentified person or group of persons).
After the introduction of Bitcoin many Bitcoin alternatives were created. These alternate cryptocurrencies are called Altcoins (Litecoin, Dodgecoin etc).
Bitcoin's underlying technology is called Blockchain.
The Blockchain is a distributed decentralized incorruptible database (ledger) that records blocks of digital information. Each block contains a timestamp and a link to a previous block.

Soon people realises that there many other use cases where the Blockchain technology can be applied and not just as a cryptocurrency application.
New Blockchain platforms were created based on the Blockchain technology, one of which is called Ethereum.
Ethereum focuses on running programming code, called smart contracts, on any...

Part #3 - How Bitcoin Authenticates A Payment & Eliminates Double Spending - By Tai Zen

Channel: Cryptocurrency Market & Total View: 3765

Add Date: November 27, 2013, 4:04 am & Duration: 00:10:14

Likes: 34 | Dislike: 15


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Bitcoin Double-Spend Tool Now Available to All: Interview w/ Glass Hunt's Hackers

Channel: Dash - Digital Cash & Total View: 12258

Add Date: September 14, 2016, 4:38 pm & Duration: 00:09:11

Likes: 189 | Dislike: 57


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"Double-spending" Bitcoin -- the process of making someone believe you sent them funds when you didn't -- used to be only for the tech-savvy. Thanks to Glass Hunt's new web-based double-spend tool, however, it's now easy and available to all. The South Korea-based anonymous hackers -- who actually want Bitcoin to succeed -- reveal their motives in this anonymous interview by Amanda B. Johnson.

- Amanda’s Twitter:
- Amanda’s Facebook:
- Dash-related online discussion:
- Dash homepage:

- Send an email to [email protected] with “subscribe” in the subject line

- Dash Downloads:
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- Glass Hunt video "Bitcoin Casino Gets Double Spent"

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What is DOUBLE-SPENDING? What does DOUBLE-SPENDING mean? DOUBLE-SPENDING meaning & explanation

Channel: The Audiopedia & Total View: 187

Add Date: October 4, 2017, 4:00 pm & Duration: 00:02:01

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Source: article, adapted under license.

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Double-spending is an error in a digital cash scheme in which the same single digital token is spent twice or more. This is possible because a digital token consists of a digital file that can be duplicated or falsified.. As with counterfeit money, such double-spending is Inflation by creating, during the duplication or falsification of the digital file, a new amount of currency that hadn't existed prior to that time. This devalues the currency relative to other monetary units, and diminishes user trust as well as the circulation and retention of the currency. Fundamental cryptographic techniques to prevent double-spending while preserving anonymity in a transaction are blind signatures and particularly in offline systems, secret splitting.

The prevention of double-spending has taken two general forms: centralized and decentralized.

This is usually implemented using an on-line...

What is double spending?What is double spending?
00:01:49November 21, 2017, 12:40 am
What is double spending?

Channel: BitByBit & Total View: 1094

Add Date: November 21, 2017, 12:40 am & Duration: 00:01:49

Likes: 8 | Dislike: 0


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In this video, I will be explaining one of the main reason why it took so long for CryptoCurrency to become a part of our lives. I will be addressing the issue of double spending. There are 3 main form of double spending that I will go over briefly. Please share the video and click the subscribe button!




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Spend - Double Up | @MixtapeMadnessSpend - Double Up | @MixtapeMadness
00:03:29October 14, 2016, 9:00 am
Spend - Double Up | @MixtapeMadness

Channel: Mixtape Madness & Total View: 17866

Add Date: October 14, 2016, 9:00 am & Duration: 00:03:29

Likes: 201 | Dislike: 4


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Using Glass Hunt's Double Spending Tool for BitcoinUsing Glass Hunt's Double Spending Tool for Bitcoin
00:07:18September 7, 2016, 7:06 pm
Using Glass Hunt's Double Spending Tool for Bitcoin

Channel: Glass Hunt & Total View: 2504

Add Date: September 7, 2016, 7:06 pm & Duration: 00:07:18

Likes: 4 | Dislike: 5


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This tool is for educational purposes. When using this tool, please play nice.

Bitcoin Double Spend cómo hacer doble gasto sin conocimiento

Channel: BTC Andres & Total View: 874

Add Date: July 18, 2017, 6:22 pm & Duration: 00:15:16

Likes: 35 | Dislike: 0


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Siempre espera 6 confirmaciones para estar más seguro en tus transacciones.

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Whitepaper Circle: IOTA Tangle - Presented by Sunny Aggarwal

Channel: Blockchain at Berkeley & Total View: 41160

Add Date: March 14, 2017, 5:16 pm & Duration: 00:42:16

Likes: 375 | Dislike: 11


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Presentation by Sunny Aggarwal on IOTA's revolutionary new blockless distributed ledger called the Tangle. The scalable and lightweight nature of the Tangle makes possible the transfer of value without any fees and the removal of the dichotomy between blockchain users and miners.

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How to double spend Bitcoin // How I hacked to double spend Bitcoin // How I hacked
00:09:04November 18, 2017, 2:17 pm
How to double spend Bitcoin // How I hacked

Channel: constantcrypto & Total View: 728

Add Date: November 18, 2017, 2:17 pm & Duration: 00:09:04

Likes: 16 | Dislike: 3


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☼ What is a Double Spend:
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Bitcoin Casino Gets Double SpentBitcoin Casino Gets Double Spent
00:04:00September 8, 2016, 8:23 pm
Bitcoin Casino Gets Double Spent

Channel: Glass Hunt & Total View: 4467

Add Date: September 8, 2016, 8:23 pm & Duration: 00:04:00

Likes: 30 | Dislike: 9


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For educational purposes only. Learn more at The tool shown in the video: .

How Dash 'InstantSend' Protects Merchants from Double Spends

Channel: Dash - Digital Cash & Total View: 3455

Add Date: September 21, 2016, 7:36 am & Duration: 00:06:03

Likes: 134 | Dislike: 9


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Learn how the Dash network is able to lock transaction inputs, enabling the prevention of double spends in real world commerce using InstantSend. An explainer and demonstration provided by Amanda B. Johnson showcase this foundational feature, set amidst context of Bitcoin's increasing double spend problem.

- Amanda’s Twitter:
- Amanda’s Facebook:
- Dash-related online discussion:
- Dash homepage:

- Send an email to [email protected] with “subscribe” in the subject line

- Try Dash InstantSend yourself on the core wallet
- (whitepaper) Transaction Locking and Masternode Consensus

- “The Time Is Now” by HookSounds

Bitcoin Double Spend MethodBitcoin Double Spend Method
00:04:19June 19, 2017, 4:23 am
Bitcoin Double Spend Method

Channel: Wilder Linn & Total View: 198

Add Date: June 19, 2017, 4:23 am & Duration: 00:04:19

Likes: 0 | Dislike: 6


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Why bitcoin transactions are so slow and why there is a huge risk of double spending?

Channel: Bitcoin For Dummies & Total View: 32062

Add Date: July 2, 2014, 10:34 am & Duration: 00:02:53

Likes: 98 | Dislike: 5


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This is educational video series explaining common stumble blocks and misconceptions about Bitcoin!

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Here is a transcript of the video:
First lets get our facts straight.
Bitcoin transactions are not slow, infact they are INSTANT! But confirmations take 10 minutes on average.
A double spend is an attack where the same bitcoin is sent to two different receivers, effectively defrauding one of them, since only 1 can get the coin for real. And the confirmation is supposed to take care of that problem because confirmation is a process during which the network checks if that bitcoin, has NOT been spent already.
So, after the first confirmation the risk of double spending is small and decreases exponentially with every next confirmation. Making it harder and more expensive for an attacker to execute it.

But who wants to wait 10 minutes to SAFELY pay for a coffee? Well that's not...

How To Double Spend Bitcoins - Free SoftwareHow To Double Spend Bitcoins - Free Software
00:02:14June 13, 2017, 2:01 pm
How To Double Spend Bitcoins - Free Software

Channel: Bitcoin Laundromat & Total View: 245

Add Date: June 13, 2017, 2:01 pm & Duration: 00:02:14

Likes: | Dislike:


Double Spend Bitcoins, BTC Double Spend

Double spending allows you to chance to get your Bitcoins back after a purchase if the receiver releases the product to you with 0 confirmations, such as some online vendors.

Download for free:

How Bitcoin Solves the Double Spend Problem Caused by Fractional Reserve Banking

Channel: Cheapest Bitcoin Price & Total View: 61

Add Date: December 15, 2017, 3:00 am & Duration: 00:06:48

Likes: 2 | Dislike: 0


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Clash of Lords 2 - Thanks Some Weeb Spending 42k Jewels Double Spend Event LGW Spend and Win

Channel: Fun Game Reviews & Total View: 1076

Add Date: February 11, 2017, 12:29 pm & Duration: 00:22:01

Likes: 40 | Dislike: 1


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Double Spend BitcoinDouble Spend Bitcoin
00:22:02November 10, 2017, 10:57 am
Double Spend Bitcoin

Channel: MR Bitcoin & Total View: 184

Add Date: November 10, 2017, 10:57 am & Duration: 00:22:02

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Cryptocurrency and Double spend problem [BlockChain]Cryptocurrency and Double spend problem [BlockChain]
00:13:31February 19, 2017, 10:14 pm
Cryptocurrency and Double spend problem [BlockChain]

Channel: DLT Labs & Total View: 612

Add Date: February 19, 2017, 10:14 pm & Duration: 00:13:31

Likes: 3 | Dislike: 3


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Presented By Neeraj S Srivastava, Umesh Singh Kushwaha, Ajay Singh & Gaurav Agarwal

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BlockChain technology is changing and evolving very rapidly. Presenter or the company is not responsible for the correctness of the information presented in the video in current time.

Confirm Bitcoin Transaction Using Double Spend RBF & CPFP 918360809034

Channel: MLM AMAN & Total View: 773

Add Date: June 13, 2017, 1:12 pm & Duration: 00:10:22

Likes: 2 | Dislike: 11

How to Confirm unconfirmed Bitcoin Transaction Using RBF and CPFP in 20 Minutes.

Yes, Now You can confirm your Bitcoin transaction using Double Spend with the help of RBF (Replace By Fee) and CPFP (Child Pay For Parents)


Channel: LÊ THANH HIẾU & Total View: 628

Add Date: May 13, 2017, 10:04 am & Duration: 00:07:53

Likes: 3 | Dislike: 2


Bitcoin Double Spender 2016Bitcoin Double Spender 2016
00:08:08September 8, 2016, 12:48 pm
Bitcoin Double Spender 2016

Channel: Michael Andrew & Total View: 1795

Add Date: September 8, 2016, 12:48 pm & Duration: 00:08:08

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How to multiply / double your bitcoins ? is the fastes way to gain free bitcoins.The site uses an exploit in the current blockchain to perform bitcoin double spending.

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Bitcoin, double spending e proof of work.Bitcoin, double spending e proof of work.
00:05:06March 31, 2017, 4:26 am
Bitcoin, double spending e proof of work.

Channel: bitgirl & Total View: 1029

Add Date: March 31, 2017, 4:26 am & Duration: 00:05:06

Likes: 80 | Dislike: 6


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Entenda uma das formas de como a segurança é garantida no Bitcoin. Nesse vídeo mostro como a tecnologia resolve o problema de double spending através do proof of work.

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Clash of Lords 2 - Spending 18k Jewels - 10x Hire - Double Spend Event - Guild United Quest

Channel: Fun Game Reviews & Total View: 427

Add Date: October 13, 2017, 7:00 am & Duration: 00:04:37

Likes: 21 | Dislike: 1


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Wakeboard - Front Flip & Back Mobe & Double Spend

Channel: Riders Army & Total View: 2144

Add Date: May 9, 2016, 1:30 pm & Duration: 00:01:00

Likes: 1 | Dislike: 1


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How Bitcoin shields you from Double Spending! | Watch Now!

Channel: Coiner & Total View: 236

Add Date: October 9, 2017, 2:40 am & Duration: 00:01:37

Likes: 2 | Dislike: 2


What is Bitcoin, What is a Blockchain

What is double-spending? Can someone duplicate my Bitcoins? Watch this video for more information and visit

Double Spend Tool For BitcoinDouble Spend Tool For Bitcoin
00:02:19October 31, 2017, 1:04 pm
Double Spend Tool For Bitcoin

Channel: bitcoin & Total View: 55

Add Date: October 31, 2017, 1:04 pm & Duration: 00:02:19

Likes: 1 | Dislike: 0


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Peter Todd on Blockchain security and limitations. PoW vs PoS

Channel: Juan Galt Crypto TV & Total View: 3802

Add Date: August 3, 2015, 2:23 pm & Duration: 00:14:13

Likes: 39 | Dislike: 8


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Double spending and block propagation visualization in a bitcoin network

Channel: Andrea Passaglia & Total View: 356

Add Date: July 17, 2014, 1:41 am & Duration: 00:00:29

Likes: 3 | Dislike: 0


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