Get your coins in bigger chunks, whereever you get the from wait a bit long befor you withdraw if possible. For existing inputs, you have to pay a fee as steven0021 said.
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How many bytes is a typical private key? If does not seem like enough. The seed is rather small compared to a typical bitcoin private key. The vowels can also be eliminated. I think I will keep regular client.
The seed is the starting point for an algorithm that (re)creates the private keys. As long as you know the correct starting point you can (re)create (or rather derive) as many private keys from it as you want. Due to the way its designed its just as secure as other wallets. In fact most wallets use this scheme called HD now. HD as in hierarchical deterministic.
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Is it possible to send bitcoin via Paypal?
No.
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Look at the system clock bottom right and the time the bitcoin have been received @ ~1:14. -> https://youtu.be/l808FsQRlRA?t=1m11sThe address is correct though 17b1RWXqB8tHynt2MJm7W3j4mX1pzfvvYh probably stolen funds from those that believed this software works while it infected your machine.
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They say the wallet is stored on the blockchain. When you create a wallet, there are no fees. Who pays for this?
Whoever said that has a misunderstanding of what a wallet is. Wallets are not stored on the blockchain, they are stored on your local machine or with the service you are using. In the case of electrum (you posted in the electrum sub after all) the wallet file is stored on your local machine.
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-snip- Furthermore, your name is just virtual or information, is it worthless to you? Would you be fine if I just named you Rumpelstiltskin from now on? -snip-
if i have to pay you just so you name me by my name, then by all means go ahead and give me names. "to pay for" is not the same as "has value", that was the whole point. Non-physical things have value, e.g. your name. but only if someone is willing to pay for them. if nobody is willing to pay, then i see no value there. Im sorry for you Rumpelstiltskin.
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Hallo Zusammen
Unverständliches Problem: Ich habe von meinem alten MultiBit 0.5.16 Client einen kleinen Teil von meinen BitCoins auf mein neus Multibit (Neuer Rechner) überwiesen, was auch Sekunden schnell funktionierte. Als zweiten schritt wollte ich den Rest meiner Coins ebenfalls überweisen, drückte auf dem neuen Client Bitcoins anfordern, was dazu führte, das eine neue Empfangsadresse generiert wurde. Leider merkte ich das erst später und überwies mir auf die vorige alte Adresse den ganzen Rest. Nun Meine BitCoins sind nun weg, jedoch nie angekommen.
Status Gesehen von 4Peers. Unbestätigt Datum 27 Dez 2016 Gesendet an 19vt5jP3KgFDAuWVAx1t28Ct8EYyK1XqP2 (Dies war meine Empfängeradresse der ersten Transaktion)
Das macht gar nix, die Adresse zerfällit nicht einfach in (digitalen) Staub. Auf blockexplorer.com oder blockchain.info ist die Transaktion nicht auffindbar.
Das wird an der alten Multibit Classic Version liegen. Macht mal ein update auf 0.5.19, setz die Blockchain zurück und erstell eine Transaktion. -> https://multibit.org/release-info/classic/v0.5.19.htmlKann mir jemand sagen, was mit meinen Coins geschehen ist ? Sind die nun definitiv weg, oder bekomm ich die vom System irgendwann wieder zurück ? Die Empfängeradresse ist ja "irgendwie" ungültig.
Besten Dank und Grüsse..
-snip Rohdaten-
Deine Bitcoin sind immer noch da, keine Sorge. Es gab vor einiger Zeit ein Update der Netzwerk Knoten um einen bestimmten Angriff (Malleability) unwirksam zu machen. Die alte Version von Multibit Classic nutzt nun eine Weise zur Unterschrift die vom Netzwerk nicht mehr akzeptiert wird. Nach dem Update sollte alles problemlos gehen.
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... Your source is wrong slightly off as it ignores the birthday paradox. Due to it, on average you have found a collision after checking half of the keyspace with almost certainty. Thus you only need 2^159 key generations. Not that it changes the numbers in any significant way.
Why half? According to the birthday paradox, you'd have near certainty (99.9%) of finding 2 people with matching birthday with as little as 70 people. So wouldn't you need roughly one fifth (366/70) of the key space? It just goes for a higher probability (I dont remember how many decimal 9 digits, but its essentially 100%) and a factor two is easier to handle since almost all of these calculations are done for binary numbers. Also, doesn't the "2^160 generations" relate to finding any collision (defined as randomly generating 2 identical priv keys), so including zero-balance ones (also those previously generated by attacker)? If so, finding collision with specific (non-zero) addresses would be a lot harder.
There are 2^256 different private keys, but because of the use of RIPEMD-160 it is assumed that 2^96 private keys result in the same address. Compressed und uncompressed pubkey are usually ignored. IIRC You try to find a collision with one specific address, thus finding one with a balance would be easier as your chance increases from 1 in 2^160 to ~8*10^7 in 2^160. Finding a collision with any hash you create yourself is even easier as it would only take 2^80 operations. -> https://en.wikipedia.org/wiki/Collision_attack#Classical_collision_attackAnd is the birthday paradox even applicable for targeting specific addresses? I thought it's only about finding any matching pair.
Yes, its just an example for a more general problem -> https://en.wikipedia.org/wiki/Birthday_problem#Cast_as_a_collision_problem
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-snip- Furthermore, your name is just virtual or information, is it worthless to you? Would you be fine if I just named you Rumpelstiltskin from now on? -snip-
if i have to pay you just so you name me by my name, then by all means go ahead and give me names. "to pay for" is not the same as "has value", that was the whole point. Non-physical things have value, e.g. your name.
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Where did you get the xpubs for wallets B and C from? There is each a correspong xprv needed to (co-)sign. You need at least one of them to move your funds.
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judging from your post history I understand why you made this useless assertion.
Another old hacked and sold account lives again. How much was lauda sold for? About treefiddy.
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Danny gives good answers, but I think its too specific to be listed here. Its listed under "Signatures - how to create and verify them" Thanks for your suggestions though, feel free to post more. I have been away for a bit and I probably missed some good threads.
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but most people will tell you that you are not really paying for the item in those games. you pay for the fun with you hobby that you have.
Nope, you can have perfectly fine fun in those games without having an ultra rare skin. Their are prestige objects and I think thats a good reason to not use them as counter arguments. Domain names are a way better example that people can understand better. Whats amazon.com worth? Its just virtual. Furthermore, your name is just virtual or information, is it worthless to you? Would you be fine if I just named you Rumpelstiltskin from now on? Non-physical objects have (personal) value and there is no reason why there should be an upper bound unless it has a physical form.
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-snip- -snip- Id say the collision happened even when no one noticed it. Shit already broke you just didnt realize it yet. Whoever sends coins to the address in question first will reveal the information to the other person also in control.
Not according to quantum theory. Storing data on a disk is not a quantum thing though. Even if, the data was stored at the very least in memory by a machine and thus it was observed. Furthermore it was not only observed but also modified and stored.
Your dumb fucking idea relates to finding the key to 1 specific address. I am looking for the key to any of millions addresses that have bitcoin stored on them. So, my problem is much, much, much easier than your stupid problem.
Wrong. The 'fastest' method would be a birthday attack, and you still need O(n/2) operations (i.e. 2^128 operations for SHA256 if you had enough memory). Just because you aren't looking for a specific key to collide with, that doesn't really make it likely to find a collision in this case. Nope. 300 million seems like a lot until you realize billions, trillions, quadrillions, octodecillions are nothing compared to the probability of a collision.
Let's add some numbers in here: In order to spend money sent to a Bitcoin address, you just need to find a ECDSA public key that hashes to the same 160-bit value. That will take, on average, 2^160 key generations.
Supposing you could generate a billion (2^30) per second, you need 2^130 seconds.
Doing this in parallel using a billion machines requires only 2^100 seconds.
Getting a billion of your richest friends to join you gets it down to only 2^70 seconds.
There are about 2^25 seconds per year, so you need 2^45 years.
The age of the Universe is about 2^34 years so far — better get cracking!
Source. Your source is wrong slightly off as it ignores the birthday paradox. Due to it, on average you have found a collision after checking half of the keyspace with almost certainty. Thus you only need 2^159 key generations. Not that it changes the numbers in any significant way.
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schrodinger's cat
if you cant see it, did it really happen?
Actually, from my understanding of the schrodinger's cat Gedankenexperiment, if you can't see whether it has happened or not then it simultaneously BOTH did and didn't happen until it has been observed by someone. If the state of possible collision is never observed by anyone then it will remain indefinitely in this state of superposition. If it the state of possibile collision eventually is observed then the wave function will collapse and it will either have happened or not have happened. During the state of superposition, it will have some percentage of having happened and some other percentage of having not happened. Those percentages will be determined by the likelihood of it having happened. Also, if i recall correctly, there is highly radioactive material in the box, so the cat will die at some point and that is what is being determined. So the percentage of having happened versus having not happened, is of the death of the cat, which is a sure eventuality in this experiment. It doesnt really matter whats in the box, whats important is that there is a chance for it to be in one state and a chance for it to be in another. In Schrödingers Gedankenexperiment he used a very small amount of radio activ material which could decay a single atom within a given time span. This was used as switch for a deadly gas which would either kill the cat or not depending on whether an atom decayed or not. This was constructed to be of equal chance. An address collision is not of equal chance to it not happening, but its still the same general principle I think. -snip- But yes, address collision only exists when it is observed in the wild, like when a superposition ends and the observed result is determined. Problem is that under normal circumstances, whether it is ever observed and how to prove it is true collision (outside of random number generator errors and etc) is another issue.
Id say the collision happened even when no one noticed it. Shit already broke you just didnt realize it yet. Whoever sends coins to the address in question first will reveal the information to the other person also in control.
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I think signatures/personal text can be changed whilst temp banned so putting that info there would be better.
True, the OP could be edited as well ( I think?), but I personally wouldn't bother with someone who made a single post updating their thread saying that they are banned, with no additional intention of "bumping" their thread or whatever. Yes, marco(theminer) used this to communicate their ban to signature campaign participants. IIRC it was something very similar to the message you suggested with a mail address.
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Also how the organizer of the RAFFLE choose a block? Is he do it as the time at which the RAFFLE closes and the current block which is going on or on some other basis?
A (random) number block in the not to distant future might also work. what you meant by your above quoted text? Lets say I start the raffle today and want it to finish some time sunday next week. So I go to e.g. blocktrail and see the current block height is 447073 and there are on average 144 blocks per day. So I go to random.org and let me get a random number between 72 and 144. It tells me 99. I add another 144*7 blocks for the week and say that block 447073 + 99 + (144*7) = 448180 will decide who wins the raffle. I would also require valid transactions to be confirmed in block 448179 or earlier.
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-snip- And how much minimum bitcoin can I send?
See my post above on how to configure electrum in a reasonable way currently without the need to understand why. Make sure you make yourself familiar with how fees work over time though. You are essentially buying space in a bitcoin block, which is currently limited to 1 MB. The more people use bitcoin the more expensive this space becomes unless there is a solution. There are several possible solutions in the works, but it seems difficult for everyone involved to agree on what is the best solution. As in the minimum, there is a practical minimum and its called "dust". Never send less than 2730 Satoshi or 0.000 027 30 Bitcoin. Usually its not nice if you send someone 2740 satoshi either, so I personally wouldnt bother if its below 0.0001 BTC or 10k satoshi which is currently valued at ~8 centEUR or ~9centUSD.
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