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...
Hey All, I just finished a new tutorial series on using bitcoind and JSON-RPC API. If understanding bitcoin itself isn't difficult enough, integrating and using a bitcoin server on a website takes it to another level. I hope someone finds it useful. 1. Intro - https://www.youtube.com/watch?v=cMM-t7a...
I think 1GB of RAM will not be enough for another decade. Even now some of these pi nodes have issues when their mempool grows. Personally I'd recommend getting a refurb PC off amazon for $60 with 4 GB RAM and 3GHZ processor. More power will cost more power, but at least you won't have to worry abou...
I think what you are looking for is gettxsetinfo This query takes a while considering the amount of data it needs to parse through your node. I just tried to run it and it still hasn't populated after 200 seconds, but this is an example of what it should look like. { "height" : 225494, "bestblock" :...
mysql is deprecated, use mysqli or PDO. Define a charset to prevent multibit injection Escape all user input ie $_POST Pull their IP address, then check it against your table prior to inserting. <?php $host="localhost"; // Host name $username="root"; // Mysql username $password=""; // Mysql passwor...
Awesome!
This thread is a great example of how open source software works
Starts somewhere and then additional people improve on the original code. Very cool!
mysql is deprecated, use mysqli or PDO. Define a charset to prevent multibit injection Escape all user input ie $_POST Pull their IP address, then check it against your table prior to inserting. <?php $host="localhost"; // Host name $username="root"; // Mysql username $password=""; // Mysql password...
First off, I was like [dot]wordpress, c'mon at least get a domain.
Then I read it and I thought, what a scam.
Then I started to watch the stream, and had to see if it worked. So I sent 10cents.
IT WORKED! FREAKIN' AWESOME PROJECT!
In order to sign a message from a particular address, the signor must have the private key. To give you an idea in order to send an email from an email address you need the password to that email account; although email and bitcoin are very different, it is slightly similar. Here's an excellent answ...
Was anyone else able to successfully login to take the programming test?
I can login at hackerrank fine, but when trying to login through the link to the test provided I keep getting an invalid login error
After reading the gizmodo article and interviews I don't see how anyone could say that Dr Wright is satoshi. If it were anyone in the mentioned interviews it was Dave Kleiman. Satoshi does not need to be found, and bitcoin is better off as a myth.
Hello Everyone! I'm a total newbie with Bitcoin so forgive me if I'm asking stupid things. All help needed! My plan is to implement a way to pay with Bitcoins in my webshop. My problem is to generate bitcoin-adresses with PHP. How should I do that? I already managed to use addrgen.php (from https:/...
Bitcoin is the coolest thing since the Fonz, that's why! You are either a proponent of bitcoin now, or you are a laggard that will be a proponent of bitcoin in the future.
Blockchain.info is phasing out their version 1 receive payments API on Dec 7th. Their new version is out now, the main difference is HD BIP32 xpub instead of payment forwarding. I have tested it out, and I must say I enjoy it much more than the previous version. In the process of testing it out I cr...
I'm seeing a lot of personal attacks and not enough technical responses. This code has been reviewed and approved by many. https://github.com/bitcoin/bitcoin/pull/6871 Anyone relying on first-seen mempool behavior should be checking all unconfirmed ancestors anyway; doing otherwise is hopelessly ins...
Using blockchain's new receive payments API. (https://blockchain.info/api/api_receive) https://www.youtube.com/watch?v=D2__AFoOdec Their new version using extended public keys, no forwarding of payments needed, fast callbacks for website and database integration. Initiate the receiving address: http...
What you are referring to and what Andreas was referring to is the OP_RETURN script within bitcoin transactions. A lot of the information within a transaction script is important info that pertains to the transaction, like where the coins came from, where they went, how much was sent, locktime, vers...
If you want something very simple, take a look at coinkite's payment button (https://coinkite.com/faq/pay) Blockchain.info's newest Receive Payment API is easy to build with (https://blockchain.info/api/api_receive). In fact, I'll be releasing an open sourced shopping cart on github using their new ...
So for those how have not tried it out yet, the main difference with the new version is that there is no forwarding of funds! Thanks to the use of the HD keys, they can just provide one of your deterministic addresses to receive the payment so there's no need to forward funds. The address is still u...
Although they have a "bad rap" on certain social media outlets for the RNG issues they had on android, I very much enjoy blockchain.info's wallet. It is very easy to use and a huge bonus is their open and free API platform for web developers. They just released version 2 of their Receive Payments AP...
Very nice guys! I'm excited to try out V2 of the receive payments API. I like the integration with HD pubkeys, it will make a merchant's transactions a lot more private than the previous version that always forwarded to the same address. I've put in my request for an API key.
One time you mentioned that you started with youtube videos, and you gained a following from there, is that correct?
Are any of your early-day youtube posts still available? Would you share the link of some of your first bitcoin videos?