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181  Other / Off-topic / Re: How many bitcoin users here are playing Pokemon Go.? on: July 28, 2016, 02:05:12 AM
My wife and I were making fun of these "nerds" (takes one to know one) when it first came out. A week later, she tells me to turn at some random spot in our neighborhood, and then she shrieked, "I got him! hahah!".  I felt so betrayed, she was now one of them.  I still haven't tried it, haven't really had the time, cool idea though geo-gaming.
182  Bitcoin / Project Development / Re: BOOK: A Beginner's Guide To Bitcoin Focused Web Development on: July 28, 2016, 01:02:10 AM
Quote
In fact, after looking at some examples and reading your articles, I was able to build the live rate conversion for bitcoinstarter.com so that goals and rewards on the site can dynamically adjust to the live exchange rate.

That's awesome to hear! Exactly what I wanted to do, help others be able to build things like this to further grow the community and the bitcoin space. Nice site!

Also, thanks for ordering a copy!
Please consider leaving a review on Amazon after you had time to go through it. Reviews really help it show up on searches Smiley
183  Bitcoin / Project Development / Re: BOOK: A Beginner's Guide To Bitcoin Focused Web Development on: July 24, 2016, 04:07:37 AM
looks really good, congratulations! is there a pdf version freebie?

Thanks!
If you are looking for some of my freebies, you should check out:

- https://www.youtube.com/user/m1xolyd1an/videos
- http://www.btcthreads.com/lessons
- https://coinables.github.io/

Or for the non-DIY type I also created http://btcwidget.com
184  Bitcoin / Project Development / Re: BOOK: A Beginner's Guide To Bitcoin Focused Web Development on: July 23, 2016, 07:03:28 PM
Posting some samples as requested.





185  Bitcoin / Project Development / Re: BOOK: A Beginner's Guide To Bitcoin Focused Web Development on: July 23, 2016, 05:35:30 PM
I don't have a large supply at my home, and you'll likely receive it faster if you order on Amazon.
Sent you a PM.
186  Bitcoin / Project Development / BOOK: A Beginner's Guide To Bitcoin Focused Web Development on: July 23, 2016, 03:50:25 PM
Greetings All,
  For the past year I have been working on a book that aims to fill the gap of Bitcoin focused web development instruction. So few resources are available in this space which is what led to me to put this project together.

The book is now out and available on Amazon: https://www.amazon.com/Building-Bitcoin-Websites-Beginners-Development/dp/153494544X



This book covers everything to get started in learning to create Bitcoin web applications from scratch.  No more copying code, or looking for pre-built templates! In this book you will learn to write your own!  You will go from simple hello world tutorials in HTML, CSS, JavaScript, and PHP to building fully functional Bitcoin websites like an online store and a game.

Includes:
  • Over 120 code examples
  • HTML, CSS, JavaScript, and PHP
  • Learn the fun way by building real working applications
  • Create dynamic sites that interact with your users
  • Build a store that accepts Bitcoin
  • Create your own Bitcoin game

Two years ago I started a YouTube channel where I focus on Bitcoin web development tutorials. There are now 600+ subscribers and I have received mostly positive feedback. About a year and a half ago, I started a thread here on Bitcointalk (So You Want To Use Bitcoin On Your Website) as a resource for new comers, so they can find the answers to the most common questions in one place.

I didn't create all these tutorials because I'm some elite professional developer.  In fact, I'm just a hobbyist.  I created these because none existed.  When I got started with Bitcoin related web development I had lots of questions, but could find very few answers.  This is the gap that I hope this book will fill.

Building Bitcoin Websites
A beginner's guide to Bitcoin focused web development
Kyle Honeycutt
ISBN: 978-1534945449
Now Available on Amazon



187  Economy / Auctions / btcledger.tech & bitcoinledger.tech [Starting Bid 0.01] on: July 23, 2016, 03:21:35 PM
Hello,
  I am selling these two domains as a pair. If you win the auction you get both.

bitcoinledger.tech
btcledger.tech

Starting Bid: 0.01BTC
Buy It Now: 0.05BTC
No escrow, bidder MUST pay first unless I've worked with you before or it's another senior forum member that I trust.
Winning bidder will have domains transfered to their NameCheap account. If you don't have an account, you will need to create one it is free.

That's it.  Both domains will expire Feb 19th 2017.

Bidding will end in 48 hours from the post.  Here's a countdown http://www.timeanddate.com/countdown/generic?iso=20160725T08&p0=770&font=cursive
188  Economy / Micro Earnings / Re: Popular 'provably fair' dice faucet box script... is hackable on: July 17, 2016, 03:11:57 PM
https://github.com/coinables/Bitcoin-Faucet-Dice-Faucet-Box/issues/1

I've sent the white hat a donation to his address, even though he found it necessary to insult me. That aside, this is a perfect example of how open sourced projects improve.  Someone finds a flaw and share it openly to the community so it can be improved upon.   

Quote
"The algorithm claims to be 'provably fair', but I have a feeling that the author didn't fully grok the theory behind it because there's no way to input client-side random into the roll so the server can still manipulate which numbers it picks..."

This is unnecessary. Maybe if it were a real gambling site it would help users feel more comfortable, but not for a simple faucet game. The server displays the hash BEFORE the user sets their target or places their bet.  This would imply that the server would have to know what bet the user places ahead of time, which is not possible.

Quote
"Yup, the search space contains about 22 billion entries with a known starting seed, at 250 chrono-ticks per second (equivalent to 2.5m SHA-1 digests) it can take several hours to brute force the hash with a single thread, which is a lot of spare time to be looking at the computer doing nothing, so during that time I wrote a work distributor that allowed me to spread the load across an arbitrary number of servers over SSH in addition to my local machine.

Now with a few more servers I can reduce the brute force time from 3 hours to 30 minutes, and with a few more it can be done in a handful of minutes. However, given the miniscule amount you can win from these sites by guessing the right number, the CPU power required to get anywhere quickly is cost-prohibitive."

A simple fix to the salt brute-forcing would just be widening the space from where the salt is generated, as it already takes dozens of machines to brute-force my existing simple algorithm. I will be updating the github repo with the new algorithm shortly.
189  Economy / Micro Earnings / Re: Open Sourced Faucet with Dice Script on: July 03, 2016, 04:40:52 AM
thank you for sharing this script ..before downloading and using ti can you tell me the demo url so see how this works and the link you provided is not working

Oops, looks like I accidentally removed it during a recent clean up on my server. It's back now, try the link from the first post on this thread and it should work.  I don't keep a balance on faucetbox anymore so when you click "cashout" you'll receive an insufficient funds error, but everything should work fine.

thanks for solving that iisue one more thing i need to know ..see its linked to faucet box so when they claim fund will be deducted form faucetbox account ..now when some one play the dice if they will more then the amount they cleint it will alos deducted form faucet box in tola and send to btc right ?

and only on evey bet its loading the full page will will make problem in shared hosting as quite huge page login will happen ..can't be its like in ajex so it will not load on ever roll

Since this is a faucet game, players can only win, funds cannot be deducted from players faucetbox account. If they lose, then they just don't receive their faucet claim.

You can absolutely change it to ajax POST requests instead so that the page doesn't reload each roll. But this is a faucet that makes money with ads. Every page re-load is another reload of an ad.  Feel free to change it to ajax post requests though, I just put this script out for free because others asked for it when I used to run my faucet and I'm not putting more work into it anymore.
190  Economy / Micro Earnings / Re: Open Sourced Faucet with Dice Script on: July 03, 2016, 04:17:39 AM
thank you for sharing this script ..before downloading and using ti can you tell me the demo url so see how this works and the link you provided is not working

Oops, looks like I accidentally removed it during a recent clean up on my server. It's back now, try the link from the first post on this thread and it should work.  I don't keep a balance on faucetbox anymore so when you click "cashout" you'll receive an insufficient funds error, but everything should work fine.
191  Bitcoin / Development & Technical Discussion / Re: Mass bitcoin address balance checker on: June 30, 2016, 03:19:48 AM

OK, I'll do those momentarily.

Done. JAR and source.

If this program helps you then feel free to donate to the address under my profile info but do not feel obligated in any way to do so.

Why anyone would put a link to their source code as a mega download is a huge red flag. Why not just post it on pastebin or github? I'd advise everyone not to click on those links.

192  Bitcoin / Mining speculation / Re: Will i profit from one ASIC antminers7? on: June 22, 2016, 02:28:30 AM
This should be posted under the mining section.
And have you looked at any of the mining calculators?
http://www.coinwarz.com/calculators/bitcoin-mining-calculator
193  Bitcoin / Project Development / Re: A very simple blockchain explorer. on: June 15, 2016, 12:46:02 PM
Nice work, congratulations!
But, what's the use of this? You made something different from what already exists, and that's great, but I don't understand towards what end.


You realize what you sound like?
"Nice grocery store, there's already a grocery store down the street, so why have this one too?"

To OP: Nice project man! Also I noticed you included me in your Thanks, so thanks for the thanks Wink Keep up the good work!

194  Economy / Micro Earnings / Re: Open Sourced Faucet with Dice Script on: June 13, 2016, 01:15:09 AM
Nice script.
I want to ask how I can add columns on left and right to add some text to faucet?
guessing its in the index.php or template.... im not sure if that script has a user friendly admin page to add  ads.. you must have some html skills atleast to add ads text etc.

Yea no sorry I didn't include an admin page or anything to make changing the layout easy. You would have to do it manually yourself in the two index files, faucetbox and faucetboxgame.

If you wanted a quick way to do it, you could just wrap everything in a table with two columns.

Change this:
Code:
<body>
<br><div id="user"><img src="logo.png"></div>
<div id="buttons">
<div id="balance2">FAUCET BALANCE<br><span id="bprint"><?php echo $getfaucetbal2?> BTC</span></div>
</div>
<br><br><center>--AD SPOT

To this:
Code:
<body>
<br><div id="user"><img src="logo.png"></div>
<div id="buttons">
<div id="balance2">FAUCET BALANCE<br><span id="bprint"><?php echo $getfaucetbal2?> BTC</span></div>
</div>
<table>
<tr>
  <td width="10%">Some column text here</td>
<td width="90%">
<br><br><center>--AD SPOT
....
snipping many lines of code to save space
....
  <div id="faqCont">
  <center><h3>Rules & FAQs</h3></center>
  - More excellent information can go here<br>
  </div>
</td>
</tr>
</table>
195  Bitcoin / Project Development / Re: Coinbase bitcoin price ticker website widget on: June 12, 2016, 05:26:35 AM
I've been looking for a code snipet for a client-side conversion calculator, similar to this:
https://tools.bitcoin.com/


If anyone has run across the code, I'd be mighty obliged if you could share it.  Cool

Thanks,
C


This might help, second lesson.  http://coinables.github.io/
196  Bitcoin / Project Development / Re: How accept bitcoin payments without bitpay, coinify, etc? on: June 10, 2016, 01:47:13 AM
If you are dealing with relatively low dollar amounts and able to sweep keys frequently here's a down and dirty way to do it.

1. Generate a new key pair on the fly with (https://blockchain.info/q/newkey)
2. You just generated a new address followed by the 64hex private key.
3. THAT KEY IS TRANSMITTED OPENLY AND NOT SECURE.  No biggie, as long as you are dealing with only a few orders a day and low dollar amounts your risk is minimal. Risk does exist to a MitM but again, if you are some small shop selling your homemade jelly for $20 a jar I'd say you're pretty unlikely to be a target. Now if your selling weed and cocaine, with a bunch of orders per hour, well then this would be the stupidest way to accept payment.  
4. Present the address to your customer, and tell them to send bitcoins to that address.
5. Use something like mail(); to email yourself the customer's contact/shipping info, the item they ordered, and the key pair your generated.
6. Once or a couple times a day when you receive an email that there was a new order, sweep the funds to your secure wallet on your phone/table/PC whatever.
7. If you don't know how to convert the 64 hex private key to wallet import format, head on over to bitaddress.org, click on wallet details and paste it in there.

Below are some very brief code examples for steps 1, 4 and 5

1.
Code:
<?php
$url 
"https://blockchain.info/q/newkey";
$fgc file_get_contents($url);
$keypair explode(" "$fgc);
$bitcoin_address $keypair[0];
$private_key $keypair[1];
//store in session
session_start();
$_SESSION["addy"] = $bitcoin_address;
$_SESSION["pk"] = $private_key;
?>


4.
Code:
<html>
Hello Mr Customer,<br>
Please send $20 or <?php 
//get exchange rate
$exc json_decode(file_get_contents("https://blockchain.info/stats?format=json"), true);
$btcusd $exc["market_price_usd"];
$usdamount 20;
$convert $usdamount $btcusd;
$convert number_format($convert4);
echo 
$convert."BTC to "$bitcoin_address;
?>

<br>
<form method="post">
etc.. some form input
</form>
</html>

5.
Code:
<?php
//when user submits the form email yourself the details
if(isset($_POST['form_button'])){
$yourEmail "youremail@address.com";
$host $_SERVER['SERVER_NAME'];
$emailTitle "New Order";
$bodyEmail = <<<EOD
   //include order details from your form
    Payment Address: 
$_SESSION["addy"] <br>
    Private Key to Sweep: 
$_SESSION["pk"] <br>
EOD;
 
        
$headers "From: noreply@".$host."\r\n";
        
$headers .= "Content-type: text/html\r\n";
        
$success mail("$yourEmail""$emailTitle""$bodyEmail""$headers");
}
?>

197  Economy / Service Announcements / Re: Cryptosteel: The Ultimate Cold Wallet Private Key Storage System on: May 03, 2016, 01:30:14 AM
Got mine today! San Diego, CA.  I was so excited I posted the unboxing on my youtube channel. https://www.youtube.com/watch?v=DY2eqLiUOVg
Thanks Cryptosteel!
198  Economy / Service Announcements / Re: Cryptosteel: The Ultimate Cold Wallet Private Key Storage System on: April 27, 2016, 03:48:12 AM
I wanted to let everyone know that I received mine today that I ordered during the kickstarter.  I live in Tennessee in the good ole United States of America.  It was return addressed from Canada.

Thanks, Cryptosteel!

Thanks for the update. There's still hope for the rest of us in the US that ordered during the kickstarter  Cool
199  Bitcoin / Project Development / Re: So You Want To Use Bitcoin On Your Website? on: April 21, 2016, 12:46:43 PM
i use gettransaction($txid);

how get my wallet address for receiving? (this method get payer wallet address only)

If gettransaction isn't showing you enough info you could use getrawtransaction instead and pick out what you need from the inputs/outs.

Code:
getrawtransaction($txid, 1);
200  Bitcoin / Project Development / Re: So You Want To Use Bitcoin On Your Website? on: April 18, 2016, 12:14:15 PM
Wallet notify will trigger twould times. Once when the TX is first seen, and again after first confirmation. If you are looking for 3 you will need to program it manually.
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