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May 23, 2024, 09:26:52 PM *
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21  Other / Beginners & Help / Re: Apple removing BlockChain on: February 07, 2014, 07:24:56 AM
Just because they removed it from the store, doesn't mean that it's removed from your phone. It should still be on your phone if you already downloaded it. You can then transfer your coins out if you like.
22  Other / Beginners & Help / Re: Your confidence in Dogecoin? on: February 06, 2014, 05:47:49 AM
Its growth is impressive, but long-term I don't see how a coin based on a meme will survive.
23  Other / Beginners & Help / Re: Hello to everybody! on: February 06, 2014, 05:38:01 AM
Quote
you can choose to help newbies by leading the way.

I didn't come off as a jerk, did I? If so, that wasn't my intent.
24  Other / Beginners & Help / Re: Hello to everybody! on: February 05, 2014, 05:37:52 AM
Hello and welcome!

What to do: 1) ask intelligent questions 2) help others.

What not to do: 1) don't troll 2) don't be a dick 3) don't spam.

Pretty much the same as most forums. I think you'll find that as long as you ask questions showing that you've done some research first, you'll be fine.
25  Other / Beginners & Help / Re: New buyer @ Localbitcoins on: December 07, 2013, 08:37:41 PM
I'd buy in person (face-to-face) at a public place. I'm not much of a fan of the escrow service because it's one more impediment to getting the Bitcoins.

1) I don't think many care if buyers have feedback, I never have.
2) I'm really leery about depositing cash other than to the person.
3) Sure. You'll need to find a seller that will sell the amount you requested.

Obviously use common sense. If your gut feels that it's a bad situation, get out. To make things smoother, have your QR code  (your address) ready. Insist that the seller use something other than Coinbase. Coinbase transactions can take a while to show up. You should get a notice immediately that the transaction has been submitted to the network. That's usually good enough.

Feel free to ask more Q's.
26  Bitcoin / Development & Technical Discussion / Re: Validate Bitcoin address in Javascript on: November 25, 2013, 01:35:35 PM
I wrote an article a few months ago about generating an address in JavaScript. I'm quite sure that it'll answer most of your questions. http://procbits.com/2013/08/27/generating-a-bitcoin-address-with-javascript
27  Bitcoin / Development & Technical Discussion / Re: Comprehensive Article on Generating a Bitcoin Address Using JavaScript on: August 30, 2013, 04:39:05 PM
Very nice write up. There are some libraries like bitcoin-js that do accomplish that task, but they aren't very well documented, so your work is definitely welcome here.

One note - The version byte can have up to four valid values for Bitcoin network:
- 0x00 - main network pubkey hash address
- 0x05 - main network script hash address (e.g. multisig address)
- 0x6F - test network pubkey hash address
- 0xC4 - test network script hash address

More information: https://en.bitcoin.it/wiki/List_of_address_prefixes

Obligatory, related plugs:

https://github.com/gasteve/node-libcoin  (bitcoin JS library, for node.js -- an update of bitcoinjs-server)
https://en.bitcoin.it/wiki/Identity_protocol_v1  (also uses base58-encode-check and a well known prefix)


Thanks, I wasn't aware of node-libcoin despite being so heavily invested in the Node.js community: https://npmjs.org/~jp. Jeff, it looks like you're one of the authors of the Node.js libcoin. I'm curious, why did you choose to do the ECC code in C++?

28  Bitcoin / Bitcoin Technical Support / Re: How to generate Bitcoin Address? on: August 28, 2013, 08:53:19 PM
Every 256 bit number is a private key,…
nitpicking mode: that's not true. there is a very very very small range of numbers, which do not lift properly on the underlying elliptic curve.
nitpicking mode: that's not true. They perfectly lift on the EC, it's just that their resulting public key are shared by two private keys from the range [0,2^256-1].
But as we're using Bitcoin addresses and not public keys, each address is shared by 2^96 private keys anyway so I'm rather sure that one more won't change anything...

@jackjack, you should read my article Wink @phatsphere is correct. Almost every 256 bit number could be a private key, but according to the secp256k1 curve parameters used by Bitcoin, any number in the range of 1 to FFFFFFFF FFFFFFFF FFFFFFFF FFFFFFFE BAAEDCE6 AF48A03B BFD25E8C D0364141 - 1 could be a private key.
29  Bitcoin / Bitcoin Technical Support / Re: How to generate Bitcoin Address? on: August 28, 2013, 08:09:24 PM
I wrote on article on how to create a Bitcoin Address with JavaScript. It's very in depth, and explains step by step the entire process. Hopefully it helps.
30  Bitcoin / Development & Technical Discussion / Comprehensive Article on Generating a Bitcoin Address Using JavaScript on: August 27, 2013, 10:01:11 PM
Hey guys, I noticed the lack of a comprehensive article out there that explains exactly how Bitcoin addresses are created. So, I did the research, and wrote one Smiley It's pretty in depth. I'd love any feedback, thanks!

http://procbits.com/2013/08/27/generating-a-bitcoin-address-with-javascript
31  Economy / Goods / Re: Your Own MANSION in Bitcoin PARADISE: Punta del Este, URUGUAY on: July 15, 2013, 03:50:21 AM
Not posting photos seems a bit shady and possibly indicative of a scam. People won't take you seriously until you post photos.
32  Bitcoin / Project Development / Re: easy offline transactions - 1 BTC bounty on: June 20, 2013, 06:02:24 AM
Has anyone successfully been able to use this? When submitting the TX to either http://blockchain.info/pushtx or https://coinb.in/send-raw-transaction.html it gets rejected. Anyone else have any luck?
33  Economy / Trading Discussion / Re: Gekko: a javascript trading bot for nodejs on: May 20, 2013, 03:36:35 AM
Quote
But isn't leveldb the same kind of dependency?

No. Think of it like sqlite, there is no 3rd party dependency other than the Node.js library. LevelDB is database created by Google by the way. Levelup is the Node.js implementation.

-JP
34  Economy / Trading Discussion / Re: Gekko: a javascript trading bot for nodejs on: May 18, 2013, 06:28:18 PM
I agree on your thoughts about the unnecessary dependency upon Redis. If a high performance key/value store, you can use LevelDB. It's an inprocess database (no 3rd party dep)... Here is the best Node.js module that uses LevelDB: https://github.com/rvagg/node-levelup Also, there are a lot of 3rd party modules that integrate with levelup that do a lot of cool things.

Keep up the good work!
35  Economy / Service Announcements / Re: Introducing Wollit! The secure beautiful web-based client-side encrypted Wallet on: May 13, 2013, 11:14:03 PM
There's nothing there? Just an email input.... have you developed anything or are you trying to gauge interest?
36  Bitcoin / Project Development / Re: Update on my Bitcoin CGI work, free to use for promotion or commercially on: April 27, 2013, 12:27:10 AM
I love 'em! Excellent job!
37  Bitcoin / Bitcoin Discussion / Re: look what i've just found out... on: April 25, 2013, 05:51:19 AM
Scam or not, if people are willing to pay an amount for Bitcoin they aren't worthless regardless of whether the purchase was based of the false pretense of a listed price.
38  Bitcoin / Bitcoin Discussion / Re: The Zimbabwe Solution on: April 23, 2013, 05:05:43 AM
Can you elaborate more about the trading of minutes works? Is it some code that people send via SMS?
39  Bitcoin / Bitcoin Discussion / Re: Petition to Apple: Allow Bitcoin wallets on iPhone on: April 23, 2013, 05:04:31 AM
It seems that the speculation is that they are gearing up to deliver a mobile payment solution. They are notorious for killing the competition on their platform. Who can blame them really. I'd love them to allow wallet apps more than anyone, as I plan on building a business around a wallet solution. But, I'm not hopeful, so I'm targeting Android first.
40  Economy / Service Discussion / Re: Best place to buy gold with BTC on: April 19, 2013, 05:52:07 AM
Whatever you do , DO NOT use coinabul

What's wrong with Coinabul?
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