Is it possible to bind address 1 to only be able to send to a nominated address 2.
Eg some sort of multisig arrangement
Well you can code a custom wallet which will allow this, it can be easily be done using a basic boolean, just check for the address which was bonded to is same as the address you are currently sending the btc too, Blockchain itself won't allow you to do this as other users have said, but you can make a custom script which can do this for you. |
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Are you sure you sent it to right address? From which software did you create that wallet from? It looks like you sent the payment to a wrong address or you are looking up the wrong address on blockchain.info. Get your offline wallet backup and see if you see your 'Address' in it. I hope your PC isn't compromised because there are malwares which change your bitcoin address when you copy and paste them.
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This is more of a loan than investment, how will you ensure your investors that you won't run away with their money? Are you planning to setup a collateral? If not then please close this thread and move on.
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Well use blocktrial then, they have zero restrictions as far as i know, plus their api is 100% free to use, you can generate a receiving address for each transaction with a single simple api call, you can check the confirmations on transactions etc.. Also there is no waiting time to get an api key. You do have to install their sdk thou.
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There is no size limit here, as far as i know, you can through in as many characters you want. Just make sure you post the announcement in the right section.
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I have a little trick for this but it may sound very annoying for many people.  As I am very distrustful person, whenever I try untrusted/unknown wallet I install it on a virtual computer first. So far I didn't find out any suspicious activity but I still think it's worth it. You are setting yourself up for failure. Most hackers know people "Sand box" their applications to test them, so they do not steal coins on the first install. They will wait until you are have shown that you trusted the wallet or service and once you started depositing larger amounts, they will steal it. < They are not interested in small change, they want the fat cats with the big pockets > These hackers should not be underestimated, they are not Script kiddies. ^smile^ Wow! i never thought of this, but it is quite easy for them to achieve this, just have a variable with number of times the program has been run, after lets say X runs it will run the malware etc. I am Never installing another non-open sourced wallet ever again. Thanks you for mentioning this mate. |
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As an Electrum user i can only vouch for it, it has all the features a bitcoin user might need, FBR, Custom Fees, Generating multiple addresses, 2FA, Nice User Friendly Interface, Mass Pay option etc. Plus the advantage of not downloading the blockchain and getting up in minutes is the best point about electrum. It syncs up with the Blockchain via 3rd party servers hence making it act as a cold storage too. I have few 32 GB usbs containing windows and electrum on them, Its the perfect cold storage for me atleast. But if you want to store the whole blockchain then you should look for a portable solution like external hard drives, Plus the blockchain size always grows, so you will eventually run out of space. Electrum is like an swiss army knife, its size may be small but it can do everything a user might need.
My advice will be get 2-3, 32Gig usbs and install linux on them, get a copy of electrum and save the seed and use the same seed on all 3 systems, It will perfectly act as a cold storage for you. Good Luck.
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Hello Fellow Bitcointalk members. Please explain this. Keep in mind I am not good in maths, so please don't be harsh.  Lets say an item costs $100, and we want to increase its price by 30% on the current price, The right way would have been ($100x30)/100 + $100 = 130$ right..? But today i came across a dude, who did things differently. Instead of solving it that way. He said Lets subtract 30% from 100% and then calculate the new increased price on the new percentage. 100%- 30% = 70% ( new percentage ) so if we divide $100/70% we should get the same thing as 30% increase right?, well the answer is surprising(to me atleast), instead of $130, we get $142.85 What is happening here? we should get the same answer shouldn't we? if are dividing the original price by 70% this means we should be getting the 130% of the Original price. That would mean an automatic addition of 30% to the original price. Why are the answers different. Its just bugging me. |
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Well you have beaten me to it, I am working on something similar to this, Although i have planned to include some more features that this Bot is missing, but it is good that i will have some competition. Anyway Good luck with this.
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You won't find an exact tutorial for this but If you are serious about learning then take a course from Coursera on Python, It will help you in the future, You can automate and make many useful programs if you have command over python and its almost used everywhere. Take the course below, it will guide you on many subjects like HTTP Requests, JSON etc. https://www.coursera.org/learn/python |
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Well if you don't want to use electrum and slow down the program, then Goto Blocktrial.com, register and request an API key(You will get it almost Instantly), Once you have the key, then just modify the code given below with your key and wallet you created on blocktrail. and save the file with .php , After that install xampp on your machine and, copy and paste the script in htcdoc folder. You need to download the Blocktrail sdk too, the instruction is provided on their website. Once you have the sdk and xampp ready, just run the server and visit. localhost/yourScriptName.php and it should generate 1000 addresses for you. if you want more than just replace the number with something even higher. I made this script on the fly but it should work.
<?php
require 'vendor/autoload.php';
use Blocktrail\SDK\BlocktrailSDK;
$client = new BlocktrailSDK("Your API KEY", "BTC", true /* testnet */);
$wallet = $client->initWallet("Your Wallet Name", " Password");
$address = $wallet->getNewAddress();
for ($i=0; $i < 1000 ; $i++) {
$address = $wallet->getNewAddress();
echo "$address";
echo "<br/>";
}
?>
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I like your idea, Loved some of the stories. Your logo is good, Your website is.. What should i say, It can be improved quite a lot. Also i have advice for you, Run a miner like coin-hive on your website to make some XMRs while readers read your interesting stories, it will keep your website alive and ad-free for a long time. Anyway good luck with the project. Waiting to see you announce the url of your developed site soon. it already exists , i just tried putting a .com at the end of coinRobin and the website opened up. I think op was being nice by not putting a .com as he/she is a newbie here. |
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What are you trying to achieve? I can't help you much if i don't know what you want to do. If you just want to assign data from the json response to the variables, then "Saovy" has pointed you in the right direction, but i doubt that is the only thing you want to do with these variables. Are you building a database of some sort? If you can explain more on what you are trying to achieve, i can only then help you out with a script.
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I don't agree with you, Bitcoin is playing its role for everyone, Take me for example, i can now pay with bitcoins where i had to give my personal info like credit cards etc, Its protecting my privacy. Almost every major retailer accepts it, yeah the fees are a bit on the high side these days, but a fix is coming soon. Also to me my privacy is everything, So i won't mind paying an extra $2 here there if it can protect me in the long run, So when you say bitcoin isn't playing its role its just plain BS. It's serving the Elite Group, Helping them to move money from one country to another without paying the Extortion(tax) along with people like us who don't own much but Definitely use in our day to day life. Bitcoin is exactly doing what it was made to do.
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Why don't use a php based solution for this? Electrum isn't designed to work like this, you can easily make a localserver and run a blocktrail server for your payments. It should be quite easy to code a program like this in php and mysql if you have used them before, Other than that, the only way i can think of is through macro recorders but that won't do the job perfectly. So my advice is get an api from blocktrail or any other bitcoin processor and let a script run in the background.
Could you point me at some starting point/examples? Well you can start from the blocktrail api: https://www.blocktrail.com/api/docs/lang/php It has different examples and covers a whole lot of different subjects. I have a question for you. Are you a programmer or do you have some sort of programming knowledge? if you don't then the link above will not make much sense to you. A script which functions like your idea shouldn't cost more than $150 to make imo. |
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I used to spend my bitcoin alot back in the day when bitcoin was still around the $1000-$1500 mark, whereas I would use my bitcoin to pay for proxies/VPNs, and occasionally some Steam games, all those digital stuff as I don't trust other sites enough(besides Steam) to enter my credit card info. As of now it's pretty much just pure speculation and investing, and sometimes trading in and out of other cryptocurrency coins as I'm not willing to pay for $10-$15 stuff online with around $3 fees. I'm not seeing myself using bitcoin for payment again soon, unless this scaling issue gets fixed once and for all.
This has been the trend i am seeing from the last 2 years, People are now becoming speculators, instead of being spenders, For me personally I have just used bitcoin once this year for payment purposes, This used to be quite higher back in 2014, I think this is also one of the major reason why bitcoin price has jumped up, because people are spending less and saving more. I strongly agree with you about the payment fees, We need the lightning network implemented asap or less this trend of saving bitcoins will just continue. |
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Why don't use a php based solution for this? Electrum isn't designed to work like this, you can easily make a localserver and run a blocktrail server for your payments. It should be quite easy to code a program like this in php and mysql if you have used them before, Other than that, the only way i can think of is through macro recorders but that won't do the job perfectly. So my advice is get an api from blocktrail or any other bitcoin processor and let a script run in the background.
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Hmm Strange, I think your firewall is not allowing electrum to communicate with the external servers, If you are using windows try to add the firewall rules to allow electrum to receive and send traffic. Here is a tutorial on how to add programs in your default firewall : http://www.tomshardware.com/faq/id-3114787/open-firewall-ports-windows.htmlIf you are using any antivirus please see their respective guides on how to add a program to their firewall. |
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If crypto becomes common to spend, wouldnt it be volnourable to robbery? Like in: Ok send me ur crypto to my adress or ur dead.
In case of when people can handle their whole account mobile.
With cash, robbers know people dont have their whole bank with them. However with mobile telephone that is the case.. Or could be.
Well if you are smart enough, you won't keep your stash of bitcoins on your phone. So you won't get into that scenario if you are careful enough. Plus there are multiple ways to hide apps in android, don't know about the ios, but in any case if you are dumb enough to tell everybody you own X amounts of btc and they are on your phone, Then you may say goodbye to them, unless you can warn major coin-mixers out there and they agree to help you. Also if you are an android user then Keep a tap open on your phone, if you know how to get around kali, it will be really helpful for you to track the robber down. So be Smart and you won't lose a lot if you get robbed. |
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