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1  Bitcoin / Project Development / [OPEN SOURCE] Serverless Anon Web Wallet on: April 04, 2022, 03:15:40 AM
Wanted to share something I have been working on and using for small casual sums.

100% FOSS free and open-source HD web wallet, FastWallet.

Source: https://github.com/fast-wallet/fastwallet
Live Demo: https://coinables.github.io/fastwallet
YouTube: https://www.youtube.com/watch?v=Egt-BWDNkKs

An instant non-custodial HD bitcoin web wallet that runs in your browser. Serverless, nomadic, privacy-focused throwaway bitcoin wallet. Instantaneous use! No sign up process, no wallet setup process or upfront back up.

Some key notes:

- Be aware this is a serverless web wallet with your private keys stored in the browser! YIKES! You probably shouldn't use this wallet for significant sums.   
- This wallet uses public APIs like Blockchain and Blockchair for UTXO data and they probably track your IP! Use a VPN.   
- Your keys are ONLY stored on YOUR device's temporary internet files. If you don't save your back-up mnemonic and you clear your browser cache you will lose access to your funds permanently.     

FastWallet is a serverless bitcoin web wallet I built for casual/throwaway use cases. Similar to throwaway email accounts a throwaway wallet is temporary and anonymous for when you don't want transactions to mingle with your primary wallet(s). Although it is an HD wallet the wallet is limited to only 21 addresses, when you use up all 21 addresses just start a new wallet, although you are not prevented from re-using addresses if you wish(not recommended). The 21 address limit is to prevent a bloated wallet with too many addresses that will exceed free API usage limits, and to avoid any look-ahead gap issues if you attempt to recover on another device that support BIP84 deterministic wallets.
 

This is free and unencumbered software released into the public domain.

Anyone is free to copy, modify, publish, use, compile, sell, or distribute this software, either in source code form or as a compiled binary, for any purpose, commercial or non-commercial, and by any means.
2  Economy / Collectibles / [Lightning Auction] FIRST EDITION Bitmain AntMiner U1 USB ASIC Miner V1.1 on: July 31, 2021, 08:10:25 PM
Hey all,
  I decided to list one of my old collectible USB antminers on scarce.city, a lightning based auction house. Check it out!  Cool

https://scarce.city/auctions/antminer-1

AUCTION STARTS MONDAY!


In 2013 we saw the first USB ASIC miners, the infamous Block Erupter mining at 333 mh/s per second.

In 2014 Bitmain introduced their U1 AntMiner hashing at 1.6gh/s and extremely low power usage at 2 volts via USB.

Own this piece of bitcoin mining history from a pivotal moment when ASICs began to take over GPUs.

This miner has minimal usage and is in excellent condition, includes original case with UPC sticker.

This is being sold as a collectible; it is not practical to be used as a miner today.
3  Economy / Micro Earnings / Testnet Faucet+Dice on: February 08, 2021, 02:03:09 AM
Re-hashing an old idea (https://bitcointalk.org/index.php?topic=1135013.0) but as a testnet faucet this time.

Currently just hosted on a private server for now, no domain (yet). We'll see how it goes.

- Testnet Faucet, you get 10,000 testnet sats every 30 minutes
- Cash out immediately or Play the dice game to increase the amount of testnet coins you receive
- Reminder: Testnet coins have no value

Let me know what you think of the idea. Adds a little fun for devs when they get testnet coins, and there's always someone who wants "a lot" of testnet coins and they can try their luck here (2% house edge).


http://67.205.174.90/faucet/


4  Bitcoin / Project Development / Mnemonic Slots on: January 25, 2021, 05:11:46 AM
So I was thinking... https://bitcointalk.org/index.php?topic=5309788.msg56156990#msg56156990

Mnemonic Slots

Imagine a giant slot machine with 12 reels and each reel has 2048 BIP39 mnemonic words. Each time you spin you generate a new mnemonic phrase. The resulting first address generated from the mnemonic is checked for a balance or activity. If you "find" a balance you "win".

Kinda along the lines of directory.io but different.

Live demo: https://coinables.github.io/mnemonic-slots/
5  Bitcoin / Project Development / Multisig Paper Wallet on: February 27, 2020, 03:01:19 AM
Recently I've been working on a multisig paper wallet using the bitcoinjs library.

With any bitcoin wallet, the most important part is the safety of user's funds. Part of the design process included what user input can be provided, and how much information to provide back to the user. The more steps or parts to the process opens up the user to more chances to make mistakes.

The current layout I have is:

 - User provides an input for m and n for the m-of-n (ie 2 of 3, 3 of 5, etc)
 - CSPRNG provided by bitcoinjs-lib creates n key pairs, and those public keys are used to create the multisig P2SH address.
 - Output to user is the P2SH address on the left-hand side, and on the right-hand side the first private key out of n keys.
 - The additional private keys can be cycled through using the arrow buttons above the private key QR code
 - Additional output to the user includes the public keys (and qr codes) and the sequence they were used to create the address and redeem script.
 - User can save redeem script hex to a USB drive, OR if they want to stay true to paper wallet regenerate the redeem script using the public key qr codes along with the `redeem-script.html` tool which can scan your public key qr codes with your webcam. Typing in by hand I suppose is a possible third option, but not likely or recommended considering the redeem script can be quite long.

To make the paper wallet more like a wallet, I have also added some additional standalone pages (tools) that will allow users to find UTXOs for specific addresses to build and sign transactions.

 - Users build transactions with UTXO selection using the `multisig-build.html` tool. (internet needed to fetch UTXOs)
 - Users sign transactions offline using the `multisig-sign.html` tool
 - Users are responsible for broadcasting the raw hex transactions

Drawbacks I am noticing:
 - building a transaction might be too advanced for some users
 - fees should be satoshis per byte like  segwitaddress.org instead of inputting exact fee in satoshis
 - users cant create an address from their own provided public keys (yet, will add in the future)
 - you tell me, what do you all think?

Here's the github repo: https://github.com/coinables/MultiSigAddress
and the domain I'm using: https://multisigaddress.org?testnet=true

It currently supports both testnet and mainnet. I recommend users stick with testnet unless they really know what they are doing.


Some nuances with creating a multisig wallet is there are multiple ways it could be implemented, whereas a standard single key address is just a private key and address. One of the challenges is the redeem script can be too long for a QR code. I was thinking maybe multiple QR codes, but that got ugly quick, so instead I went with displaying the public keys QR codes and printed out the redeem script, giving users multiple options.  This is the way I have decided to go, at least for a first attempt. Looking for thoughts, input, etc from others.
6  Economy / Auctions / INTOTHEBLOCKCHAIN - Bitcoin SaaS Passive BTC Income on: November 26, 2017, 04:07:05 PM
INTOTHEBLOCKCHAIN.info  is a bitcoin SaaS written in NodeJS that I am now putting up for auction.

No ads needed, users pay 0.0005 BTC to embed a message into the immutable Bitcoin Blockchain forever, and funds will go to site owner's wallet.
The site owner can accumulate roughly 1 BTC for every 2,000 messages embedded.

Site owner has to do nothing aside from renewing the domain name once a year and run a VPS for the site to run on (~$5/month).

Auction is taking place at flippa https://flippa.com/9334370-intotheblockchain-info
7  Economy / Services / Need a logo $100 on: July 23, 2017, 08:31:57 PM
Looking for a creative and abstract logo for sweepkey.org. I can't come up with something that isn't lame like a broom and some bitcoins, I need something abstract yet could still represent movement of funds after some explanation/imagination. Will pay $100 in bitcoin after work is completed. If interested please PM me with a link to a quick concept you have for the logo and/or portfolio. Purchase should include flat image and source file.

PM me or email me [coinables at gmail]

- Kyle
8  Economy / Web Wallets / Tangerine.pw | Bitcoin Wallet API on: March 19, 2017, 01:16:04 AM

Simple.
Sweet.
Bitcoin Wallet API

  

Simple but powerful RESTful API.
Everything you need to build a bitcoin website.

► Create Addresses
► Receive Funds
► Send Funds
► Check Balances



Sign up to get notified once beta is available at:
https://tangerine.pw


--------------------
UPDATES BELOW
--------------------

7/9/17: BETA has now been launched and is live.

3/18/17:  API service is functional and being load-tested for scaleability, and security. Public access is currently disabled. Please visit https://tangerine.pw to enter your email to get notified once beta is launched. The wallet back-end is custom built in nodejs, and is incredibly lightweight and fast. The entire RESTful API back-end is both distributed and specifically designed from the ground up to handle bitcoin transactions. I'm looking for an awesome UI designer to help build the login/registration screen and user dashboard, if that's you PM me.
9  Economy / Auctions / EXCLUSIVE :: #1 GOOGLE RANK :: btcwidgets.com - All original, and custom coded on: October 29, 2016, 03:21:42 AM
1st Page Google result for: bitcoin widget

BTCWIDGET.COM IS FOR SALE!
The top source for Bitcoin website widgets.

#1 Google result for: custom bitcoin widget

#2 Google result for: free bitcoin widget

1st Page Google result for: bitcoin donation widget


Includes both domain, and website files.
I wrote this site from scratch, and is 100% custom coded by myself.


Bidding starts at 2 BTC.

Auction ends November 6th at this time (https://www.timeanddate.com/countdown/to?iso=20161106T00&p0=770&font=cursive)



Code:
Domain Name: btcwidget.com                                                                     
                 
Registry Domain ID: 5460541_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.onlinenic.com
Registrar URL: http://www.onlinenic.com
Updated Date: 2016-05-15T18:09:25Z
Creation Date: 2015-06-02T04:00:00Z
Registrar Registration Expiration Date: 2017-06-02T04:00:00Z
Registrar: Onlinenic Inc
Registrar IANA ID: 82
Registrar Abuse Contact Email:
Registrar Abuse Contact Phone: +1.5107698492
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Registry Registrant ID: Not Available From Registry
Registrant Name: Kyle Honeycutt
Registrant Organization: None
Registrant Street: Spring Street
Registrant City: La Mesa
Registrant State/Province: CA
Registrant Postal Code: 91941
Registrant Country: US
Registrant Phone: +1.7606967004
Registrant Phone Ext:
Registrant Fax: +1.7606967004
Registrant Fax Ext:
Registrant Email:

Bidding starts at 2 BTC.

Auction ends November 6th at this time (https://www.timeanddate.com/countdown/to?iso=20161106T00&p0=770&font=cursive)

No neg trust, no newbs.
I reserve the right to reject a bid based on who the user is.
10  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



11  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
12  Economy / Micro Earnings / Crazy idea, use webspeech API on faucets for protection against bots? on: February 02, 2016, 02:42:23 AM
What if a faucet used webspeech API to protect against bots?

The faucet could have a box, a shape, font color whatever and it be a certain color, say green.
Then the user must click a button then speak the color of a specific object in this example 'green', in order to move to the next page.
A sortof speech captcha.

I think this would be relatively easy to set up, what do you think? I think it could really throw the bots for a loop, at least for a little while.


Article:  https://hacks.mozilla.org/2016/01/firefox-and-the-web-speech-api/?utm_content=buffera9386&utm_medium=social&utm_source=twitter.com&utm_campaign=buffer

API Documentation: https://dvcs.w3.org/hg/speech-api/raw-file/tip/webspeechapi.html

Example: http://mdn.github.io/web-speech-api/speech-color-changer/
13  Bitcoin / Bitcoin Technical Support / JSON RPC PHP on: December 26, 2015, 08:10:00 AM
Can't figure out what I'm doing wrong.
I'm trying to access my node running on my computer via my webserver.
Keep getting the same error.

Code:
Fatal error:  Uncaught exception 'Exception' with message 'Incorrect response id (request id: 1, response id: )' in /home/site/public_html/jsonRPCClient.php:152
Stack trace:
#0 /home/site/public_html/node.php(8): jsonRPCClient->__call('getinfo', Array)
#1 /home/site/public_html/node.php(8): jsonRPCClient->getinfo()
#2 {main}
  thrown in /home/site/public_html/jsonRPCClient.php on line 152

I've searched, and have found similar threads with the same error as me, but no clear fix.
Put my webserver as rpcallowip...

my bitcoin.conf
Code:
server=1
rpcuser=userRPC
rpcpassword=passRPC
rpctimeout=30
rpcallowip=68.65.122.148
rpcport=8332

test code
Code:
<?php

  require_once 
'jsonRPCClient.php';
 
  
$btc= new jsonRPCClient('http://userRPC:passRPC@68.105.12.345:8332/');
 
  echo 
"<pre>\n";
  
print_r($btc->getinfo());
  echo 
"</pre>";

?>


Does it matter if I launch bitcoin core, vs bitcoind.exe since I put server=1 in my conf? I've tried launching both, they both do the same thing. I even receive the exact same error if I close my node down, so I'm clearly have an issue connecting.  Bitcoind.exe doesn't do anything, it opens a command window, but there's no text or anything going on to confirm it's working... is that normal?
14  Economy / Micro Earnings / PSA: Bots have figured out funcaptcha on: December 19, 2015, 05:29:07 PM
My faucet was emptied in about an hour from a bot. Funcaptcha has been great against bots, but doesn't look like anymore.

The culprit referrer: 35iPaDcjQqViRkXXHnagGYoKGxvCpEmcZk

15  Economy / Auctions / BITCOINSTATUS starting at 0.01BTC on: December 13, 2015, 05:23:12 PM
Up for auction is the TLD BitcoinStat.us

Winner will get the domain pushed to their namecheap account.
If you don't have a namecheap account you will need to create one. Don't worry they accept bitcoin Wink

Starting Bid: 0.01 BTC
Minimum Bid Increments: 0.001BTC
Auction Ends: 12/20/2015 http://www.timeanddate.com/countdown/generic?iso=20151220T10&p0=770&font=cursive&csz=1

Great domain to create an information/stats website on the bitcoin network.

Example usage:


Happy bidding!
16  Bitcoin / Project Development / Shopping Cart System using Blockchain's new Receive Payments API v2 BIP32 xpub on: November 28, 2015, 10:17:41 PM
BC.info is phasing out their version 1 receive payments API on Dec 7th. Their new version is out, 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 created a shopping cart system that small merchants can use to sell whatever they want on their website, so I thought I'd throw it up on github. https://github.com/coinables/Blockchain-Receive-Payments-API-Shopping-Cart

What you'll need:
- Blockchain.info API key for their new receive payments API. Request one here https://api.blockchain.info/v2/apikey/request/
- A website and host that supports PHP, and MySQL databases. Preferably cPanel with PHPmyAdmin.
- Download the files in the repository at github https://github.com/coinables/Blockchain-Receive-Payments-API-Shopping-Cart
- Create and configure a database on your webserver
- Import the included SQL database files using PHPmyadmin or similar database manager
- Open the config.php file and update the fields
- Upload the files to your server.
- Goto login.php in the directory where you uploaded your files to access your admin panel and start adding products!

Want a preview?  I go over it in this video starting at 6:25  https://youtu.be/D2__AFoOdec?t=6m24s
17  Economy / Micro Earnings / Open Sourced Faucet with Dice Script on: November 25, 2015, 06:35:09 AM
https://github.com/coinables/Bitcoin-Faucet-Dice-Faucet-Box

Site and code is now open to anyone who wishes to clone/fork or whatever.

Faucet+Dice is a bitcoin faucet that also has a fully functional dice game where users can play with their earnings.
Site is PHP and Javascript.
Payouts are managed with faucetbox.
Anti-bot is with funcaptcha Google's reCaptcha.

Live Example:  https://coinables.website/faucetbox

18  Bitcoin / Project Development / Safely Generate Your Keys Offline w/ Physical Entropy Kits on: November 14, 2015, 10:55:55 PM
[removed]
19  Economy / Auctions / Top Performing Faucet (DailySatoshis.com) Domain + Script + DB on: October 02, 2015, 01:17:45 AM
I am selling my faucet.
Link to thread: https://bitcointalk.org/index.php?topic=1176867.0

 - Domain:  DailySatoshis.com (excellent domain name)
 - Registrar: NameCheap
 - Expires: September 2016
 
DailySatoshis is a top performing faucet this is top 30 list on FaucetBox.com.
There are currently 104 sites linking in to DailySatoshis.com
Perfect turn-key solution to anyone looking to become a faucet master or to add to their existing faucets.

What makes this faucet so popular? First of all, the rewards are competitive. Second of all, it's was hand-coded uniquely entirely by myself to include a fun number guessing game every round. There is no other faucet that uses this script as it I wrote it myself.

Stats for September (site didn't go live until Sept 11th):
 - 7,000+ Unique
 - 27K Sessions
 - 15% Bounce Rate
 - 104 Sites linking in
 - 6 pages and 4 minutes per session


Currently monetizing with adsense successful click-thru rate. Unable to disclose figures due to adsense TOS.
I am selling as I a already have many projects going on including my youtube channel. This combined with my everyday life, full-time job, wife, etc, maintaining the faucet has become a lot more work than I anticipated.
What work? Constantly refilling the faucetbox balance, changing captchas from time to time to prevent bots, updating affiliate links, etc.

Bidding Rules:

Newbies are NOT allowed to bid.
Those with red trust are NOT allowed to bid.

Starting bid is 0.2 BTC
Bid Increments: minimum 0.01 BTC
End Date/Time: October 8th 2015 @ 4:00 PM Pacific Standard Time (http://www.timeanddate.com/countdown/generic?p0=900&iso=20151008T1600

The winner will get the domain name pushed to their NameCheap Account. They will also receive the files, folders, databases, etc

Post your questions here or PM me.

Good luck bidders!
20  Other / Meta / What's the deal with bitcoin.com? on: September 30, 2015, 04:22:21 AM
Is it affiliated with bitcointalk.org? The topics and sections are exact copies of this site. Are the sites merging? I created an account, but wasn't sure if there was supposed to be a connection between the two sites or if they are completely separate.
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