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1781  Economy / Exchanges / Re: [OFFICIAL]Bitfinex.com first Bitcoin P2P lending platform for leverage trading on: November 07, 2013, 12:42:31 PM
Chech the history ledger (click on your user name in the top right corner). I guess amounts are rounded for display reasons but it is (finally!) showing all 8 places in the ledger.
1782  Bitcoin / Bitcoin Discussion / Re: [ANN] Bitcoin blockchain data torrent on: November 07, 2013, 12:39:18 PM
I've seeded already in total for sure above 100 GB. Smiley

Would be great to have a new check point and also a new torrent soon. We're already ~18k blocks further down the road after all.

Please also consider creating an RSS feed that one can then subscribe to, once enough people do this, you can even swith to faster releases, as new torrents will be seeded much faster.
1783  Local / Projektentwicklung / Re: Ist eine "stabile" Krypto-Währung möglich? on: November 07, 2013, 10:26:53 AM
Ja, das stimmt, IOUs sind an eine Instanz (Person/Firma...) gebunden. BTC sind übrigens z.B. an die Satoshi Blockchain gebunden, ist eben etwas mehr "Meta", aber trotzdem muss es auch da eine Instanz geben, selbst wenn man die Teilnehmer nicht kennt und ihnen nicht vertraut, die als zentral anerkannt wird.

Ja, einfrieren macht es einfach explizit, dass man nicht daran glaubt, dass der Kurs um mehr % steigt als man durch das einfrieren verdient, sonst wäre es ja klüger zu kaufen. Außerdem glaubt man auch daran, dass der Kurs nicht weiter als diese % sinkt, sonst wäre es ja klüger zu verkaufen.

Man hat noch immer das initiale Verteilungsproblem (wie verteilt man die Anfangsmenge?), aber die Mengenbalance klingt schon mal recht spannend. Smiley
1784  Local / Deutsch (German) / Re: Erster großer Essenslieferservice in Deutschland akzeptiert Bitcoins on: November 07, 2013, 09:41:14 AM
Dazu kam dann noch, dass auch gerade gestern bekannt wurde (jedenfalls für mich), dass neuerdings ein Lokal in meiner Stadt (Graz) Bitcoins am PoS akzeptiert.  Echt super!
http://gaumenkino.at/ oder? Kann man ja ruhig auch ein bisschen promoten. Wink

Gartengasse 28, das ist einmal um's Eck bei der alten Technik wo früher das Café Libertad drin war.
1785  Economy / Service Discussion / Re: Inputs.io Security on: November 07, 2013, 09:29:17 AM
No, no, it's not a scam! It is a SOCIAL EXPERIMENT!

https://bitcointalk.org/index.php?topic=206948.msg2166173#msg2166173
This social experiment has ended - here was the goals:

1) teach people that Ripple BTCs are not real BTCs
2) teach people that your BTC.* can be substituted for anything you trust, automatically

There was also mass invasion of ripple.com/forum posters. It's not too hard to figure out who they are. Keep this in mind:

1) I have not profited at all from this.
2) Anyone who lost BTC.* had their BTCs exchanged by other people.
3) Anyone who I sent a BTC to could have redeemed someone else's Bitstamp or whatever IOU.

Please read http://ripplescam.org/ to learn more!

Well, he can now rewrite the inputs.io site to read:
Quote
This social experiment has ended - here was the goals:

1) teach people that input.io BTCs are not real BTCs
2) teach people that your BTC.inputsio can be substituted for anything you trust, automatically

There was also mass invasion of bitcointalk.org posters. It's not too hard to figure out who they are. Keep this in mind:

1) I have not profited at all from this.
2) Anyone who lost BTC.inputsio had their BTCs stolen by other people.
3) Anyone who I credited a BTC on inputs.io could have redeemed them before the "hack".

Please read [is there a webwalletsarescams.org?] to learn more!

Don't worry, Theymos won't think he is a scammer:
For a scammer tag, the accused person needs to have promised to do something and then failed to deliver on the promise. TradeFortress never promised to pay anyone any bitcoins here. If you trust him to do something that he didn't promise, that's your problem.
As per the "legal disclaimer":
Quote
Bitcoin is not legal tender. As with any Bitcoin service, any storage on inputs.io is at the users own risk. Exchange rates are estimates only.
1786  Local / Projektentwicklung / Re: Ist eine "stabile" Krypto-Währung möglich? on: November 07, 2013, 01:10:30 AM
Ripple ist nicht zentralisiert und im Gegensatz zu Paypal kann dort niemand außer mir mein Konto einfrieren...

Mastercoin ist grob gesagt ähnlich wie Colored Coins, arbeitet also mit Tracking von speziellen Transaktionen in der Bitcoin Blockchain als Währungsgrundlage.

Die Idee mit "einfrieren" als Investition finde ich recht interessant, damit würdest du aber doch nur die Geldmenge rel. stabil halten, nicht jedoch den Tauschwert, oder? Andererseits würde sich die geringere verfügbare Geldmenge eventuell auf den Kurs auswirken... hmm...
1787  Bitcoin / Development & Technical Discussion / Re: Selfish Mining Simulation on: November 07, 2013, 12:47:05 AM
Well, you'd need to do real mining and also have real clients. This makes it a bit more complex than simulating with metrics that you either just guess or measure from the current live network.

1788  Local / Projektentwicklung / Re: Ist eine "stabile" Krypto-Währung möglich? on: November 07, 2013, 12:23:41 AM
Mit Ripple ist es genauso möglich, IOUs rauszugeben. Egal wie man es nennt: sobald etwas gedeckt wird, das von jemand anderem vorgehalten wird, ist es keine Währung wie Bitcoin mehr sondern ein Schuldverprechen. Gerade deswegen bin ich auch kritisch gegenüber Mastercoin und Colored coins, weil diese immer zumindest von 1 Satoshi gedeckt sein müssen, um in der Blockchain zu existieren.

Um im wert nicht zu schwanken, muss sie Wert besitzen und das kann etwas digitales eben nicht.
1789  Alternate cryptocurrencies / Altcoin Discussion / Re: Whatever happened to Ripple? on: November 07, 2013, 12:12:42 AM
https://www.google.com/search?q=bitcoin+scam - 4.6 million results

Also interesting: http://www.google.com/trends/explore?q=bitcoin+scam%2C+ripple+scam - new all time high soon? People for sure get more sceptical once the buzz grows larger.

Please show me how it is possible to scam anyone by holding a large amount of worthless assets that can only be traded on the free market - especially considering that BTC are in the same class of assets, just differently distributed than XRP... You won't get any XRP unless you either get them for free or buy them willingly, just like BTC.
1790  Alternate cryptocurrencies / Altcoin Discussion / Re: XRP up, LTC down on: November 07, 2013, 12:04:49 AM
Ripplelabs is funded by Google Ventures (which are independent from Google itself), Bitcoin is the one with a client by a Google employee (bitcoinj). Wink

Again, XRP != Ripple. I'd recommend staying away from XRP "investment" (or speculation), but that doesn't mean that I recommend staying away from Ripple. It is easy to get enough XRP that last for basically forever for free.
1791  Bitcoin / Project Development / Re: Ripple: A Distributed Exchange for Bitcoin on: November 06, 2013, 11:55:44 PM
I could post many more steps until the process is atomic ("click on trade" --> "select USD"...) or fewer (Deposit USD at gateway, send to Bitcoin address in Ripple client, done!). Roll Eyes

If you use Litecoin to arbitrage between let's say MtGox and Bitstamp, LTC simply would cost more USD at MtGox than at Bitstamp again, you gain nothing compared to just withdrawing BTC (that are more expensive at MtGox).

Besides technical differences in the architecture, Ripple is different from Litecoin in the sense that it is a market for things representing assets rather than an asset itself, with the only exeption being XRPs. LTC, BTC, NMC etc. are not redeemable, Ripple IOUs are.

As I said: LTC etc. are very good at being assets but suck at trading these for anything else than non-reversible digital currencies, Ripple wants to be one of these non-reversible digital currencies AND also enable anyone to create these currencies, which opposed to LTC are backed by real assets. The valuation of these then is done via an inbuilt market and order book system.

If you want to buy a piece of bread from me for 1 LTC, you can not do that - you can only buy a promise from me to receive 1 piece of bread in the future (either explicitly on Ripple or implicitly via a contract) since there is no way at all (even creating "Breadcoin" that is backed by bread just means it is an IOU) to trade the bread directly in an atomic transaction that doesn't involve IOUs. You can of course make the LTC physical (the other way round) by creating a 1 LTC paper wallet, and then trade directly, this is again an IOU however, as the transaction is not taking place on the blockchain and I have to trust you to not have noted down the key.
1792  Local / Treffen / Re: Bitcoin meet-up in Vienna on: November 06, 2013, 10:18:47 PM
http://bitcoin-austria.at/wiki/Hauptseite Smiley
1793  Local / Projektentwicklung / Re: Ist eine "stabile" Krypto-Währung möglich? on: November 06, 2013, 10:17:09 PM
Stabil gegen was? Euros? Gold? Milch?
1794  Bitcoin / Project Development / Re: Alpha testers needed - fiat-BTC exchange - Paysty on: November 06, 2013, 10:07:28 PM
You cannot really answer (1) definitely, you can only say that the software is written with no intention to do something unsafe... unless you really have analyzed the whole stack of software and libraries you use. Bugs and weaknesses are not always obvious and larger, more public projects *coughdebiancough* also had their problems despite the code being open. I don't want to pay an auditor to check your code and am not good enough in security to do this myself, so I rather stay on the safe side.
1795  Bitcoin / Project Development / Re: Alpha testers needed - fiat-BTC exchange - Paysty on: November 06, 2013, 09:31:50 PM
I consider ISPs to have a lot more ressources than the typical guy on the internet...

Also I know that it is encrypted, still you don't just want the dump - you also want the key(s) to decrypt that. I am definitely not going to install software that is designed to intercept and/or extract SSL keys from my communications, even Open Source one. It just takes one bug and your users are very much in danger.
1796  Alternate cryptocurrencies / Altcoin Discussion / Re: Whatever happened to Ripple? on: November 06, 2013, 09:14:10 PM
Ripple != XRP, it's a decentralized exchange and IOU marketplace.

XRP are imho a bad investment, even more than BTC (where ~10% are currently held by a single person) as there is an entity holding over 90% of the currency. They can be dumped at any time and are also given away for free regularly. Likely both the rising price for BTC (XRP are very easily tradeable for BTC) and the recent giveaways have pushed the price down both against BTC and USD.
1797  Bitcoin / Project Development / Re: Alpha testers needed - fiat-BTC exchange - Paysty on: November 06, 2013, 09:07:41 PM
There is NO WAY that I will let any third party get a dump of communication between me and my bank.

Anybody can take such a dump of your communication any time. It's useless because it's encrypted.
I just accessed my bank page, please post the dump here. Roll Eyes

Anybody with access to a lot of ressources can do this, yes. You can't and I won't enable you to do that.
1798  Bitcoin / Project Development / Re: Alpha testers needed - fiat-BTC exchange - Paysty on: November 06, 2013, 04:57:12 PM
There is NO WAY that I will let any third party get a dump of communication between me and my bank.
1799  Bitcoin / Development & Technical Discussion / Re: the Block Discarding Attack / shellfish mining on: November 06, 2013, 04:54:11 PM
The pool operator doesn't have to share that he found a block... But if he wants to carry out the attack as described, he needs to start mining on top of the block he just found. To do that he needs to submit to all of his miners a header that builds on the newly found block. So a pool-based attacker does need to share the hidden blocks with his miners.
Maybe this could be prevented in the future with homomorphic encryption, though I agree that it would be easy to register just a simple worker on all pools and then you know when they found blocks.

Also: Where does the reward come from?
It's deducted from the reward of the block that has an orphan brother. That's actually the main point, disincentivizing creating forks.
Could one then "wage war" against a pool by trying to fork their blocks? On the other hand, if you then create a fork, you also need to tell everybody else about it, so they actually do claim the forking reward or your work was in vain. You cannot even assume that the others will propagate the fork to miners you don't know until the first one that knows about the fork claims a reward as they will not want to tell each other... and then the reward was taken anyways.

100 blocks (or rather a number slightly smaller than this) might be a good time frame, as it is anyways not possible to spend anything from new blocks for this amount of time. I'm not too sure how reorganization events would be handled then though, especially with a split close to 50:50, where 2 chains compete over a longer period of time and dead forks suddenly become alive again.
1800  Bitcoin / Project Development / Re: Ripple: A Distributed Exchange for Bitcoin on: November 06, 2013, 04:37:40 PM
1) You find a gateway that takes a deposit from your bank account, for example Bitstamp.
2) You deposit your money at this gateway and withdraw to your Ripple account. To do this, you need to have enough capacity in a trust line to this gateway, so they actually can send you the money.
3) You either find a gateway that allows you to withdraw BTC IOUs or just use the built-in Bitcoin bridge.
4a) (the gateway) You deposit BTC at this gateway's account. Ripple automatically gives you a quote when trying to send them money based on current market conditions.
5a) (the gateway) You withdraw these BTC from the gateway to your cold wallet.
4b) (the bridge) You enter a Bitcoin address in the "sending" part of the Ripple client. You then automatically get a quote on how much of your USDs it costs to send them depending on current market conditions.
5b) (the bridge) You actually send the funds (triggering one or several trades along the way) which are behind the scenes converted to BTC IOUs that get redeemed at a special gateway that automatically then sends the BTC shortly afterwards, no need for an account at any gateway.

Compared to BTC where you deposit at an exchange, trade there and withdraw from there, the deposit point and withdrawal point can be distinct entities in ripple, while the trading happens on Ripple itself. This allows for easier regulations and also for better competition. As with any exchange though, market depth is usually also a large factor, so this is why there is not that much action and then again because there is not much action, there is not a lot of depth etc. On the upside, it is quite easy to make markets on Ripple. Smiley
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