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Local / Pilipinas / Re: Pilipinas (Philippines)
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on: August 17, 2015, 02:45:35 AM
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Guys, i just want to share and maybe you can give me some feedbacks. Last night i joined in DevCup 2015 (a hackathon here in PH) and the theme for this year is about "Connect" (unfortunately i lose again lol). Usually kasi niLilive ko yung gawa ko same nung sinali ko last year. My name of my app is "Connect Chain", connecting people to blockchain. To make it simple its a website (can be access via mobile browser) wherein the user will just signup (email and sms) and enter a public address (bitcoin public address) and every time there is a new transaction (either your wallet is local bitcoin-qt or web wallet like blockchain) it will notify you in real time via email and sms. Medyo gastos lang sa domain+server+api fees so tatanong ko lang muna baka may nakagamit na sa inyo na ganon site/app...hoping for your feedback  Thanks, Mike |
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3
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Local / Pilipinas / Re: Pilipinas (Philippines)
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on: May 27, 2014, 01:51:09 PM
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Guys,
Anyone tried to setup an exchange here in PH licensed? Law, company registration, CPA and bank accounts. Not sure where to start from but planning to go to nearest municipal.
TIA,
Mike
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6
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Bitcoin / Development & Technical Discussion / Re: bitcoind sendmany vs. sendtoaddress
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on: May 14, 2014, 07:58:44 AM
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Sendmany creates a single transaction with multiple outputs.
Sendtoaddress would be one transaction per address.
Outputs are relatively small, inputs are much larger so using sendmany reduces the average tx size on a per output basis.
thanks for the info. It doesn't mean as well that there will be much lesser Transaction fee? TIA Mike "Minimum" fee should be significantly reduced. If you're splitting a relatively large output into many outputs, there's a much greater savings. Outside of having all the outputs linked together in the blockchain (which may be a privacy concern), I don't know of any disadvantages to sendmany... maybe messier to deal with if manually entering it into the console? thanks for info |
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7
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Bitcoin / Development & Technical Discussion / Re: bitcoind sendmany vs. sendtoaddress
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on: May 14, 2014, 07:26:56 AM
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Sendmany creates a single transaction with multiple outputs.
Sendtoaddress would be one transaction per address.
Outputs are relatively small, inputs are much larger so using sendmany reduces the average tx size on a per output basis.
thanks for the info. It doesn't mean as well that there will be much lesser Transaction fee? TIA Mike |
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9
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Bitcoin / Development & Technical Discussion / Re: ./bitcoind listtransactions from another wallet
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on: May 05, 2014, 04:56:32 AM
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Guys,
Is it possible let say i have WALLET1(in my local PC/MAC/Cold storage) and WALLET2(a server which serves as a bitcoind)
Now can i run a bitcoin API on WALLET2 like ./bitcoind listtransactions that will return all transaction by WALLET1? Im planning to use WALLET1 for sending money while WALLET2 just on server generating BTC address for incoming payments. Is it possible?
Thanks,
Mike
Hi, seems wont be possible. Another question. Is it possible to get all transaction that is categorize as send on litecoind API? listtransactions returns all both receive and send. Possible just send? Thanks, Mike |
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10
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Bitcoin / Development & Technical Discussion / ./bitcoind listtransactions from another wallet
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on: May 05, 2014, 03:27:35 AM
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Guys,
Is it possible let say i have WALLET1(in my local PC/MAC/Cold storage) and WALLET2(a server which serves as a bitcoind)
Now can i run a bitcoin API on WALLET2 like ./bitcoind listtransactions that will return all transaction by WALLET1? Im planning to use WALLET1 for sending money while WALLET2 just on server generating BTC address for incoming payments. Is it possible?
Thanks,
Mike
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11
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Economy / Service Discussion / Re: Bitfenix API authentication
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on: March 24, 2014, 11:18:36 PM
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Hi, ok i was able to figure out <?php
$apiUrl = 'https://api.bitfinex.com/v1/margin_infos';
$apiKey = 'xxx';
$apiSecret = 'yyy';
$payload = array(
'request' => '/v1/margin_infos',
'nonce' => strval(time() * 100000),
);
$payload = base64_encode(json_encode($payload));
$signature = hash_hmac('sha384', $payload, $apiSecret);
$headers = array(
"X-BFX-APIKEY : " . $apiKey,
"X-BFX-PAYLOAD : " . $payload,
"X-BFX-SIGNATURE : " . $signature,
);
$curl = curl_init();
curl_setopt($curl, CURLOPT_POSTFIELDS, '');
curl_setopt($curl, CURLOPT_POST, 0);
curl_setopt($curl, CURLOPT_HTTPHEADER, $headers);
curl_setopt ($curl, CURLOPT_URL, $apiUrl);
curl_setopt($curl, CURLOPT_FOLLOWLOCATION, 1);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
$curlResult = curl_exec ($curl);
curl_close($curl);
echo $curlResult;
solved. Thanks, Mike |
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13
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Economy / Service Discussion / Bitfenix API authentication
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on: March 24, 2014, 08:00:04 AM
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Guys, Any idea what im missing. Im using https://www.bitfinex.com/pages/api. unfortunately there authentication doesnt have any sample. I tried google but not too much .php example. <?php
$apiUrl = 'https://api.bitfinex.com/v1/margin_infos';
$keyId = 'xxxx';
$keySecret = 'xxxxxx';
$payload = array(
'request' => '/v1/margin_infos',
'nonce' => time() * 100000,
);
$payload = base64_encode(json_encode($payload));
$signature = hash_hmac('sha384', $payload, $keySecret);
$headers = array(
"X-BFX-APIKEY : " . $keyId,
"X-BFX-PAYLOAD : " . $payload,
"X-BFX-SIGNATURE : " . $signature,
);
$curl = curl_init();
curl_setopt($curl, CURLOPT_HTTPHEADER, $headers);
curl_setopt ($curl, CURLOPT_URL, $apiUrl);
curl_setopt($curl, CURLOPT_FOLLOWLOCATION, 1);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
$curlResult = curl_exec ($curl);
curl_close($curl);
echo $curlResult;
Result/Error {"message":"Could not find a key matching the given X-BFX-APIKEY."} But i did pass X-BFX-APIKEY as header TIA, Mike |
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14
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Economy / Service Discussion / Re: Blockchain.info Wallet API
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on: March 15, 2014, 02:13:39 AM
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Guys,
many thanks for the help, i figure it out. What i did was i have a cron that checks the balance provided by Listing Addresses API by blockchain. Then from there i check each address balance.
Thanks.
Mike
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15
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Economy / Service Discussion / Blockchain.info Wallet API
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on: March 14, 2014, 09:25:33 AM
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Guys, I hope you can help me. Im working on a project and im using https://blockchain.info/api/blockchain_wallet_api. I know that the logic is that you create an address for every customer wherein they can send there payment. My question is how i can identify if the user paid on the created address? I know the API has a callback but how can identify on what invoice reference it is. Can the blockchain API can send a custom variable for callback? I can see in there documentation Http Callbacks {Custom Parameters} but when you can pass it? Thanks in advance, Mike |
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16
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Bitcoin / Project Development / Re: top rich address
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on: March 12, 2014, 12:58:17 AM
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hi, thanks for the help by the way so at the end of the day i need compare btc address each to identify top N address right? Is there any way i can just query. scrapping other site is my last option i guess. Thanks, Mike |
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17
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Bitcoin / Project Development / Re: top rich address
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on: March 11, 2014, 07:27:12 AM
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They manually check every aingle Bitcoin Address to see who has the most funds. No seriously. i see, are they not using some sort of c++ bitcoin block parser? TIA, Mike |
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19
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Economy / Services / Re: [WTB] Real Time Bitcoin Days Destroyed Chart
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on: February 17, 2014, 09:31:58 AM
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Hi,
When you say "real time," do you want a static graph that is up to the day correct, or up to the last transaction correct?
Or do you want a graph that changes as the block chain changes?
Just saying real time is too vague.
Also, has your bounty changed?
-MikeMark
Hi, A graph/chart that is updated every N seconds/mins. as much as possible, up to the last/latest transaction. The bounty is 1 BTC. Thanks, Mike |
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