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Showing 20 of 32 results by lr127
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Re: Конкурс: Угадай курс выиграй 1BTC или 1000$!
by
lr127
on 19/12/2016, 13:35:46 UTC
847
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Board Announcements (Altcoins)
Re: [PRE-ANN] [KTK] Krypt Koin | 100% PoS | 100% FREE | 500 STAKES
by
lr127
on 21/05/2014, 21:16:54 UTC
Wallet does not start in Windows XP 32bit. On Win7 64 is OK.
Registered.
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Board Reputation
Re: Thomza trust thread
by
lr127
on 28/02/2014, 15:56:09 UTC
I rented the rig for 48 hours. Rig was not available about 4 hour, the owner extended the rent time for 5 hours.
Good service. Thanks.
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Board Announcements (Altcoins)
Re: NXT :: descendant of Bitcoin - Updated Information
by
lr127
on 23/01/2014, 02:28:02 UTC
is there a byte limit for an alias?

Alias - (0, 100]
URI - [0, 1000]

NRS
Code:
if(aliasValue.length() != 0 && aliasValue.length() <= 100) {
   alias = aliasValue.toLowerCase();

   for(i = 0; i < alias.length() && "0123456789abcdefghijklmnopqrstuvwxyz".indexOf(alias.charAt(i)) >= 0; ++i) {;}

   if(i != alias.length()) {
      responses.put("errorCode", Integer.valueOf(4));
      responses.put("errorDescription", "Incorrect \"alias\" (must contain only digits and latin letters)");
   } else {
      uri = uri.trim();
      if(uri.length() > 1000) {
         responses.put("errorCode", Integer.valueOf(4));
         responses.put("errorDescription", "Incorrect \"uri\" (length must be not longer than 1000 characters)");
      } else {
...
} else {
   responses.put("errorCode", Integer.valueOf(4));
   responses.put("errorDescription", "Incorrect \"alias\" (length must be in [1..100] range)");
}
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Board Announcements (Altcoins)
Re: NXT :: descendant of Bitcoin - Updated Information
by
lr127
on 22/01/2014, 17:41:49 UTC
1. I could add asset filter.
2. Total number of tokens.
3. U can't, u r supposed to emulate matching algo and reconstructs trades according to order placement. I can add extra API calls if necessary.
Strange as for me. Maybe I do not understand how it should work and what does it. I figured it was something like an auction.
Ok, I'll look for a more detailed description.
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Re: NXT :: descendant of Bitcoin - Updated Information
by
lr127
on 22/01/2014, 17:17:03 UTC
Come-from-Beyond

1. How i can get all orders for specific asset in the one query?
I get all orders and do filter it by assetId now.
Is there a better way?

2. What is quantity in issue asset request (174 in first row upper table)?

3. I bought a few items. How can I see what I bought and for how much?

http://i43.tinypic.com/2zejq6f.png

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Re: NXT :: descendant of Bitcoin - Updated Information
by
lr127
on 22/01/2014, 13:43:10 UTC
How i can get all orders for specific asset in the one query?

I can use:
Code:
getAskOrderIds
do filter ids and run
Code:
getAskOrder&order=
but it is very complicated way.
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Board Announcements (Altcoins)
Re: NXT :: descendant of Bitcoin - Updated Information
by
lr127
on 20/01/2014, 03:59:23 UTC
Torrent files are around 9kb.
I mitigated the limit by...

It is the wrong way to store .torrent to the blockchain using aliases or AM.
I have some .torrent files with size 500KB-1MB. Do you should use one thousand messages for one file?
The better way in current stage is using the Magnet-URI.
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Board Announcements (Altcoins)
Re: Nxt :: descendant of Bitcoin - Updated Information
by
lr127
on 15/01/2014, 12:02:52 UTC
I counted the number of transactions (83556) and did a little more.
Number of accounts is 14600.

Full version: charts for transactions, amounts, fees, aliases, accounts.
Some charts has logarithmic x scale.

All charts:
http://imgur.com/Uajg1U4

Transactions only:
http://i.imgur.com/ybu2OPA.png


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Re: Nxt :: descendant of Bitcoin - Updated Information
by
lr127
on 14/01/2014, 06:54:25 UTC
Can anyone explain this in more detail? Or maybe it has already been discussed somewhere.

Was discussed several times, think starting point was here https://bitcointalk.org/index.php?topic=366105.0
or maybe here https://nextcoin.org/index.php/topic,471.0.html (but this ends with a link to the above link)
Thanks! I found this place:

Each time a node sees a transaction it checks if it's the first time a public key used.
If yes, then soft remembers this key, so next user with the same account id will get all transactions rejected.

Code:
//Transaction.verify()
else if (account.publicKey == null) {
account.publicKey = senderPublicKey;
} else if (!Arrays.equals(senderPublicKey, account.publicKey)) {

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Re: Nxt :: descendant of Bitcoin - Updated Information
by
lr127
on 14/01/2014, 03:13:24 UTC
64-bit encryption is only used for accounts that have no public key and haven't done any transactions. It is recommended to make public key and do at least one transaction. Send someone some NXT, buy an alias, basically I think any proactive usage of the account gives 256 bit protection
Can anyone explain this in more detail? Or maybe it has already been discussed somewhere.
How the presence of a transaction affect the strength of encription? And encription for what?
Account ID is hash of public key which is function of private key (secret phrase).

Code:
Curve25519.keygen(publicKey, null, MessageDigest.getInstance("SHA-256").digest(secretPhrase.getBytes("UTF-8")));
//publicKey - output
byte[] publicKeyHash = MessageDigest.getInstance("SHA-256").digest(publicKey);
BigInteger bigInteger = new BigInteger(1, new byte[]{publicKeyHash[7], publicKeyHash[6], publicKeyHash[5],
                                          publicKeyHash[4], publicKeyHash[3], publicKeyHash[2], publicKeyHash[1], publicKeyHash[0]});
//bigInteger - is account id

If you don't have Transaction you don't have stored Account ID in NRS "database".
But how does it affect the existence of the account (as pair the private key-public id)?
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Board Announcements (Altcoins)
Re: Nxt :: descendant of Bitcoin - Updated Information
by
lr127
on 13/01/2014, 18:19:49 UTC
Come-from-Beyond
I understand correctly that the public key can not be used to encrypt messages, and private - to decrypt?
And i must use another channel for deliver key(s) for message encryption/decryption?



First (?) client with arbitrary messaging support. Just for test.
QR code generating & scanning for alias, account, payment request included.
http://i.imgur.com/AGKufOG.png
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Board Announcements (Altcoins)
Re: [ANN] Nxt Bounty for working JavaScript code that signs and verifies signatures
by
lr127
on 08/01/2014, 10:17:01 UTC
Jaguar0625
I ran js.core & java.core for a same hash key - the result is different.
You can use java ScriptEngine for mix java & javascript code for testing.

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Board Announcements (Altcoins)
Re: Nxt :: descendant of Bitcoin - Updated Information
by
lr127
on 05/01/2014, 23:30:39 UTC
The first one created the alias, the second one replaced destination.
James
Thanks! I did not know that the replacement works, I thought this feature is not yet implemented.

Petition the maker of your NXT client to add a time check to prevent this from happening in the future.
It's Firefox fault. Not mine or my app Grin.
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Board Announcements (Altcoins)
Re: Nxt :: descendant of Bitcoin - Updated Information
by
lr127
on 05/01/2014, 23:11:56 UTC
Normal. You can replace an alias URI with a new URI, even if it is the same URI. I consider it a bug, but CfB says it is a feature

James
Maybe i can't understand you properly, but i talk about two same aliases.
First is "lr127" (URI is "id:11017826896") and second is "lr127" (same URI "id:11017826896").
I wanted to buy one alias and spend 1 NXT, not 2.

But when i query: http://node1.nxtbase.com:7874/nxt?requestType=listAccountAliases&account=11017826896
I see only one alias "lr127". As expected.
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Re: Nxt :: descendant of Bitcoin - Updated Information
by
lr127
on 05/01/2014, 22:29:22 UTC
I created two equals aliases by url query. I press the Enter once, i don't press reload button.
And paid double fee.

First transaction:
http://node1.nxtbase.com:7874/nxt?requestType=getTransaction&transaction=18025872161896266439
Second:
http://node1.nxtbase.com:7874/nxt?requestType=getTransaction&transaction=13777821866514257534

I have two of the same aliases now.

Is it normal?

My local time is 5 am, maybe it's time to go to sleep?  Grin

http://i.imgur.com/ziGHqFc.png
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Re: Nxt :: descendant of Bitcoin - Updated Information
by
lr127
on 03/01/2014, 10:24:47 UTC
But if it's impossible at the protocol level, then maybe we can look at safeguards at the client level. Maybe clients can (at least have the option of) enforcing check digits for entering naked addresses.
NRS API can be changed without breaking backward compatibility.
Inside can be stored without check digit - as before. And take / give out only with check digit.
NRS & clients must check this, not client only.
First time to use the old and new version of account number together, developers need time to change their apps.
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Board Announcements (Altcoins)
Re: Nxt :: descendant of Bitcoin - Updated Information
by
lr127
on 03/01/2014, 09:26:13 UTC
isn't it the same with BTC?
I don't know how BTC works.

Use Alias System.
It's crutch (kostyl) Grin
If i want to send money to dgex how i can use alias system?
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Board Announcements (Altcoins)
Re: Nxt :: descendant of Bitcoin - Updated Information
by
lr127
on 03/01/2014, 09:03:20 UTC
There must be CRC added into addresses ASAP!
I agree. I thought about this recently and not found any reasons why we can't add the "check digit" to verify the account (as example GS-1, IBAN, etc).
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Board Altcoin Discussion
Re: [Nxt] API of Nxt
by
lr127
on 03/01/2014, 07:29:25 UTC
Come-from-Beyond
I can not find a way to get a transaction id for an alias. This is not possible? 
I looked at GET & POST APIs. Nothing.