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121  Economy / Gambling / Re: BTCOracle : Bet on the future price of bitcoin ! on: May 01, 2013, 12:36:35 PM

By the way, I ran a spellcheck on your FAQ page for you:


Thanks !

To be honest it was written very fast and I did not proof read it afterwards, and we are now working 200% of our time on all the issues and new features. I ll definitly get it another look asap.

As well sorry for missing the topics, I have two topics on bitcointalk and I have "F5" them for like 2 days and nothing happened so I kinda forgot about them Wink)))
122  Economy / Gambling / Re: BTCOracle : Bet on the future price of bitcoin ! on: May 01, 2013, 12:34:16 PM

It seems that your game is open to exploitation.  If I'm planning to sell 100k BTC soon, and know that the price will drop at least a little as a result, I can profit very nicely from your site by betting that the price will go down.  I can even tell everyone I know and have them all place multiple 1 BTC bets with you.  What do you do in such a situation?

Well, the first thing I can tell you is that we will do "nothing" and honor everything.
Yes, you can game us. We even encourage you to try as we are trying to know the bottlenecks of our system.

We will never have a human decision as it is not fair. All decision are taken automatically, with fairest neutral sources (datas from mtgox and timestamp from blockchain). It is the only way to be fair.

As monitor such "abuse" case is pretty impossible, the only solution I see we have is not to make it worth your while. Either by odds or because the amounts are not strong enough.

In your example, betting 1 bitcoin is clearly meaningless compared to dropping 100k btc. I doubt you will care to bet in such a situation.

Thats why we probably will never able to accept 500 bitcoins bets or such, especially on a short time frame.
123  Economy / Gambling / Re: BTCOracle : Bet on the future price of bitcoin ! on: May 01, 2013, 12:29:36 PM
If you suspect that two bets are from the same person, will you cancel the bets?

We will NEVER cancel a bet. If the bet is "invalid" it is denied, else every bets will be honored. Even if that cost us money.

Our odds system is supposed to be our protection against "spam" bets.
If you bet 10 btc on a short succession you'll get very bad odds on the last ones.

Feel free to play exactly as you like.

Of course we plan to accept huge bets and volume at a latter point, just not now as we are proof testing our idea.
124  Economy / Gambling / Re: BTCOracle : Bet on the future price of bitcoin ! on: May 01, 2013, 12:26:13 PM
How does the maximum bet work?  Can I send multiple 1 BTC payments in a single transaction to exceed the maximum?  Or do I have to make multiple transactions from different addresses?

Yes you can. We have anyway no way to verify thats it is the same person so it is possible.

And we are totally fine with it, you can do that if you want. You can even bet 10 btc from the same address if thats your choice.

Our protection works by lowering odds if necessary. If there is a dangerous amount of coin for us then after a few 1 btc bets you'll probably see the odds getting offered going down.
125  Economy / Gambling / Re: BTCOracle : Bet on the future price of bitcoin ! on: May 01, 2013, 12:24:40 PM
I think, this is a really unique idea. Is there also such an site for LTC?

Yes, we plan to make a LTC release Smiley))

Thats not top priority for us tho, but definitly once we are kinda satisfied with everything we propose for bitcoins and there is no remaining bugs etc, we will propose the same for LTC
126  Economy / Gambling / Re: BTCOracle : Bet on the future price of bitcoin ! on: May 01, 2013, 12:23:42 PM
only problem I see with your system is that there may be a delay in receiving the bitcoins and by that time, the dynamics of the market have changed from the moment the users decides to bet, and that is an annoyance for me personally.

The delay is part of the game. That said, I would prefer one hour delay than 3 hours.

We plan to implement a lot more time period during the next release in a few weeks. 15 mins will probably be a total crapshot or exploitable by the right people but we will try it anyway. We plan to release the "beta v2" with 15 mins / 3 hours / 12 housr / 1 day / 1 week.
127  Economy / Gambling / Re: BTCOracle : Bet on the future price of bitcoin ! on: May 01, 2013, 12:22:08 PM
only problem I see with your system is that there may be a delay in receiving the bitcoins and by that time, the dynamics of the market have changed from the moment the users decides to bet, and that is an annoyance for me personally.

Hello,

Yes there is.

I dont see any way to go around it. Maybe there is, but there is no way to know the exact time you decide to bet, except with when the bets was propagated on the network.

Edit: Actually since we are using blockchain.info as "trustee" to estimate the betting time, if you bet FROM a blockchain.info wallet the bet is actually real time, ie there is no delay between the time you send and the time the timestamp is registered on blockchain.info.

Maybe we whould advertise bets from blockchain.info wallets as being real time !!!
128  Local / Discussions générales et utilisation du Bitcoin / Re: Meetup bitcoin sur Paris on: April 26, 2013, 04:13:43 AM
Merci pour le feedback super positif les gars !

En fait on a testé une autre approche hier, le post reddit et ca a été un "carton" au delà de nos espérances :

http://www.reddit.com/r/Bitcoin/comments/1d2o10/do_you_think_you_can_predict_the_price_of_bitcoin/

On est très content du feedback et du volume actuel pour un premier jour, donc autant dire qu'on est sur un nuage !

En plus on a eu une chance phénoménale en enchainant les victoires ce qui est toujours rassurant pour commencer et nous a rassuré un peu sur le coté "random" du truc

Merci à tous les testeurs Wink
129  Local / Discussions générales et utilisation du Bitcoin / Re: Meetup bitcoin sur Paris on: April 25, 2013, 09:17:51 AM
Cool Karl merci !

Je t'avoue que pour l'instant on a juste posté à l'arrache dans les subforums de gambling et on a eu 0 feedback.

Juste 2 utilisateurs ont testé pour l'instant Smiley
130  Economy / Service Announcements / BTCOracle - Bet on the bitcoin price ! on: April 24, 2013, 01:23:50 PM
Hello,

We are launching a new service, BTCOracle, that allow users to bet on the future price of bitcoin

http://www.btcoracle.com/

Right now we only have two possible types of bets as the site is in the beta phase :

- Bet that the price will rise in the next 3 hours
- Bet that the price will go down in the next 3 hours

Please dont hesitate to make us feedback we welcome all of them ;-)
131  Economy / Gambling / BTCOracle : Bet on the future price of bitcoin ! on: April 24, 2013, 01:05:34 PM
Hello,

We are launching a new service, BTCOracle, that allow users to bet on the future price of bitcoin

http://www.btcoracle.com/

Right now we only have two possible types of bets as the site is in the beta phase :

- Bet that the price will rise in the next 3 hours
- Bet that the price will go down in the next 3 hours

Please dont hesitate to make us feedback we welcome all of them ;-)

Edit :

We have just proceeded to a major upgrade including the following changes :

Added 2 new time frames : 15 minutes and 1 day
Improved leaderboard
Improved address selection system
Added Coinbase support
Added live chat
Added history page
Improved FAQ
132  Local / Discussions générales et utilisation du Bitcoin / Re: Meetup bitcoin sur Paris on: April 24, 2013, 01:03:27 PM
@pokerfriend (je ne me souviens pas de ton username)

J'ai retrouvé ce dont je te parlais à propos de la "bankroll" et de la variance sur chaque adresse satoshidice.
C'est Eric Voorhees qui s'explique :

As mentioned, cash reserve can fall to zero, but can't go negative. In the extremely unlikely even that the statistical variance resulted in this (it's something less than 0.01% chance) ...

Who's to say it couldn't happen

Again, the max is based on the wallet size, so if players win that bet, the max adjusts, and the site continues. It hurts, of course, but the system is resilient and will recover... a player will not be able to make the same size bet until the wallet fills back with funds.


@LainZ.. J'ai regardé Coinbr, intéressant. J'étais complètement passé à coté de cette partie de MPEx. Je vais creuser ça. Thanks ;-)



hehe ouais c'est bien foutu leur système.

A propos notre site de pari sur le prix de mtgox est actuellement lancé en béta si certains veulent tester :

http://www.btcoracle.com/

Possibilité juste de parier sur le cours à 3 heures pour l'instant Smiley
133  Bitcoin / Development & Technical Discussion / Re: Problem using accounts on: April 23, 2013, 12:22:25 PM
Thanks you for your feedback this is really appreciated.

But yes the brainwallet application does exactly that and it is nice, but this is an outside webpage and so I don't see how we could use it to automate our payments which is our goal, since there is no outside API and I dont feel confident porting javascript code to our own framework.
134  Bitcoin / Development & Technical Discussion / Re: Problem using accounts on: April 23, 2013, 12:10:53 PM
So do you have any advice ?

We do not want to build a complete database of transaction of whatever, we want the fastest and easiest way to do that with the minimun amount of work and minimun risk of bug for a commercial application :

From address A send x bitcoin to address B
send all the remaining bitcoin in address A back to address A


At least it is good to know the account mechanism is kinda abandonned cause we were almost banging our heads in the wall trying to use it Cheesy
135  Bitcoin / Development & Technical Discussion / Re: Problem using accounts on: April 23, 2013, 12:06:31 PM
I want to do the following type of transaction :

From address A send x bitcoin to address B
send all the remaining bitcoin in address A back to address A

(This is basically what I tried doing with the "account" mechanism but with multiple addresses and account it seems like the account interface is kinda "random" at times and does a lot of unexpected stuff, like taking from address outside of one account and stuff...)
136  Bitcoin / Development & Technical Discussion / Re: Problem using accounts on: April 23, 2013, 11:58:03 AM
Are there some really simple tutorial or documentation on how to use the raw transaction API ?

Everything I have seen seemed either messy or overly complex
137  Bitcoin / Development & Technical Discussion / Re: Problem using accounts on: April 23, 2013, 11:54:05 AM
Also we tried using the "account" mechanism since the beginning (as there is no easy way to use addresses directly except by raw transaction which seems too technical for us),

but we keep having weird and unexpected behavior.

On the wiki all the description of the account mechanism use the mailbox and houses metaphor but from our experience either this mechanism is bugged or there is definitely something we dont understand here.
138  Bitcoin / Development & Technical Discussion / Problem using accounts on: April 23, 2013, 11:51:51 AM
Hello,

We are trying to use the bitcoind official client (last version) to automate payments, using the command line API.

We are encountering the following (very annoying) issue :

"bank" is having 0.0995 from the "bitcoind getbalance"

This is what we have from the "listgrouping" :

[
    [
        [
            "1up3hyCXBeaa97FkCsw8XiWS2bJnrsRgJ",
            0.10000000,
            "up3h"
        ]
    ],
    [
        [
            "1PLz8h5p5MmYNpTGhuYGXH7p5sAYefPi25",
            0.09950000
        ],
        [
            "1bankbMhn2zg35UcHYNS83YkD3WoDv9p6",
            0.00000000,
            "bank"
        ]
    ]
]



Now when we do this :
console/ bitcoind sendmany "bank" '{ "1bankbMhn2zg35UcHYNS83YkD3WoDv9p6":0.0995}'
=> tid: 497e4049a290195609216079297c78703dbd10c439b6c0a3cf48cde192d8da37

This should not work as we have to pay the transaction ID, but the client is taking the 1 bitcoin FROM the "up3h" account to send them to 1bankbMhn2zg35UcHYNS83YkD3WoDv9p6, when we never specified this account.

Is this a bug ? Is there a way to ensure that all accounts are well separated, ie that the client will never take coins from account A if we tell me it to take it from account B, independently of any situation ?

Regards,

Emilien
139  Economy / Service Announcements / Re: OPEN LETTER to Donald, Patrick & Amir RE: Bitcoinica on: September 16, 2012, 10:14:38 PM
Hello all,

I was at the conference on saturday and it was a really nice event (even though a bit on the utopist / political leftside).

Met quite a lot of very interesting & bright people

I had extensive discussion with Amir & Patrick at the bar where the 8 bit event or whatever was happening, and as I dont really like to disclose "private" conversation I wont say anything here about this.
If anyone wants to talk to me about that I am on skype (search emilien dutang)

To the personn that presented the liquidation paper (I did not see that) I initially intended to distribute public relations tracts with info on the bitcoinica mess at the conference then did not felt like it as I did not want to be a "party crasher" and as Amir & Patrick willingly did extended discussion talk with me about the issues at hand.

I dont want to disclose stuff here as I still need to make up my mind.
I still think I can safelly say that Amir will follow whatever Patrick will do / decide.

Regards,

Emilien
140  Economy / Service Announcements / Re: OPEN LETTER to Donald, Patrick & Amir RE: Bitcoinica on: September 14, 2012, 10:57:53 AM
And sorry, but if the goal of intersango is to clear their reputation by holding MY money and making us PAY for legal and civil attorney, then they are essentially saying :
"hello dear users we dont care at all about you all we care about is our reputation"
What does that precisely say about them ? Any guess ?

They need to realise that the only way to redeem themselves is precisely to help the users.
If the users in some way get fucked up I am sure that a lot of people will be commited to ruining their precious reputation one way or another, ESPECIALLY if they sacrificed the users for their legal reputation or whatever that is
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