Your TX is one of ~40k waiting for a confirmation, it might take a while to get confirmed.

Id rather not have a client thats forcing me to pay a high fee just because someone is currently burning money on the network. Im perfectly fine to pay the same fee as always and wait a day. If I want something to go fast I can always increase the fee, but its still a decision I want to make myself.

We already have that. Bitcoin core does a pretty good job to determine the fee for a given block the TX should be in.

A wallet is considered cold if it is kept offline without any internet connection. In order to broadcast transactions and keep up to date on your balances you also need a watch only wallet that is online, but does not have the private keys in order to sign a transaction. The watch only wallet creates the transaction, but cant sign it. You transfer it to the offline computer (e.g. via QR-code or USB-stick), sign it there and transfer it back for broadcasting.


#1 get additional computer
#2 install software
#3 dont go online

Its called "child pays for parent" and to my knowledge miners have not implemented it. Thus it would just add another TX that does not get confirmed.

Dann abwarten, die TX wird auf Dauer bestätigt werden. Ich vermute die benutzen entweder bitcoin core direct oder über eine API auf einem Server, von daher sollte die TX ca. alle 30 Minuten neu losgeschickt werden und dann irgendwann auch von nem Miner in einen Block verpackt werden. Durch die >40K anderen TX kann das aber eine Weile dauern. Da es sowas in dieser Größenordnung noch nicht gab, ist es schwer zu sagen wie lange, aber. Die Frage ist wann der Spam (stress test) aufhört. 40k TX brauchen so 20 bis 40 Blöcke und abgearbeitet zu werden, also ca. 3 bis 7 Stunden.

But that would require you to sign a message with the address and if I understood you correctly you cant do that. Anyway, lets no derail the thread with a discussion about that. Im sure you have thought about that and have your reasons to stake your address(es) here.

Bist Du Sender oder Empfänger? Welche wallet software/service benutzt Du? Einige "vergessen" unbestätigt TX nach einiger Zeit, insbesondere wenn die Wallet zwischendurch geschlossen wurde. Spätestens wenn die TX in nem Block ist, weiß deine Wallet aber wieder bescheid. Wenn Du der Absender bist, solltest Du sie regelmäßig neu versenden, da z.B: bc.i schon nichts mehr davon weiß. Die leiden aber auch ziemlich unter dem Spam.

Es gibt zur Zeit sehr viele Transactionen die auf eine Bestätigung warten. Da spammt jemand das Netzwerk. Dabei wird ne Menge Geld verbrannt von daher kann man davon ausgehen das sich die Situation bald bessert. Unter normalen Umständen ist die TX völlig ok, die ist zwar groß, aber die Gebühren sind entsprechend hoch.



Im Vergleich zum Rest des Monats:



Die kleineren Ausschläge nach oben die sind die letzten "Stress tests".

Quoted, but I dont see a reason for you to stake your address here if you cant sign a message with it anyway.

Mycelium allows signing message, but it needs the private key for it, in case of multi sig it would also need x out of Y keys. Im not sure if Myclium allows multisig signed messages though.

Why do you think the mistake was done elsewhere, but by those that send you the coins?


WIthout a transaction ID its hard to say. Double spends are not possible with confirmed transactions and your wallet/service should reflect that over time. It is possible to have two competing transactions, but only one can be confirmed.

Its easier to understand with an easy example. The definition of one way function is just that, its only a function in one direction and there is no reverse function. There might be an algorithm to reverse the operation and it might not be important to get the exact same input either. One might not care whether one gets -2 or 2 as long as its a possible input. Similar with bitcoin mining. Any input that results in the needed hash value is good for the miners, it means they just found a valid block and thus get the blockreward.


SHA256 is mostly important for mining and its done twice in order to add a layer of difficulty even if SHA256 should be vulnerable. Its more likely that there are shortcuts found over time than that its just broken (as in: can be reversed) one day. While broken SHA256 would certainly be a big problem for bitcoin it would also be a big problem for many other applications.

In terms of private keys an attacker would need to break not only SHA256, but also elliptic curves and RIPEMD160. The private key can only be calculated from the public key if ECDSA[1] is broken, which again would be a huge problem for many other applications besides bitcoin. But even if ECDSA was broken, you can only get the public key from a bitcoin address if you also break SHA256 and RIPEMD160 as both are needed to reverse the calculations of an address[2]. Keep in mind thought that the public key is known to the blockchain if you spend "from"[3] the address in question. This is why using a new address every time adds a (tiny little) bit of security. SHA256 is also considered to be quantum secure while ECDSA is not.

[1] https://en.bitcoin.it/wiki/Elliptic_Curve_Digital_Signature_Algorithm
[2] https://en.bitcoin.it/wiki/Technical_background_of_version_1_Bitcoin_addresses
[3] bitcoins are not actually spend from addresses, but rather refer to another transaction.

There are plenty TX waiting currently, in fact we have an all time high that tripled the previous high. Some even report that there over 50K TX waiting for confirmation. I would not change my behavior regarding fees just because someone is doing a stress test of the network.

No, I have not asked the admins. I dont know, it feels strange to ask for my own thread to get stickied. Maybe create a thread about it in meta and see how others react to this.

1st row is the activity jump in unix time (number of seconds since 1970.01.01 00:00:00), the second row is the activity jump for your time zone. The time zone offset from GMT can be set at the top of the table. The 3rd row is not used. So, last jump was 2015.07.07 14:53:20 (GMT+3) and the next will be 2015.07.21 15:00:00

Not sure what you are exactly looking for but the simplest "one way" function I can think of is f(x) = x², which gives you the value you put in mutiplied by itself. Now the question is which number did I put in when you only know the result. E.g.:

I say a result of f(x) = x² is 4. What was the x? You cant know the answer, because there are two (in |R) possible answers -2 and 2. If it was a game you could guess and would win 50% of the time.

Its a "one way" function because you cant bijective (math. for one-to-one) reverse the calculation, its only a function in one direction, but not in the other direction, its not a function if you reverse the operation. A function is defined such that for each input there is only a single possible output. Two different inputs may return the same output, thats fine, but there may never be more than one possible result for any given input. If you want to reverse f(x) = x² you get f_R(x) = sqrt(x) which gives you the root of the number you put in, but it will return two results the negative and the positive root, thus its usually only defined on |R_>0 if its used as a function and only returns positive numbers.

SHA256 is very similar to this, its a function as any given input gives the exact same hash value. But since it is mapping all possible (and thus infinte) values to a small (in mathmatical terms) subspace of 2²⁵⁶ possible results, there must be a collision. There must be infinity values that result in the same SHA256 hash. They are just not humanly possible to find. In this sense SHA256 is a one way function similar to x² only that you have no way to try all combinations for a given result. If this was a game, you, your family and everyone on earth could guess all day every day until the sun burned out and I still would win.

This is the basis for bitcoin mining. As the hash must be below a certain value and miners cant just reverse SHA256 that value and get a valid block. They have to try many different combinations to find a value that fits.

I think 20% is too high, it will probably less. Think about the number of people running a webserver vs. the number of people accessing a webserver. Maybe if the O(1) propagation with reverse bloom filters and pruning work the number of nodes will go up again, on the other hand they might not be considered full nodes any more, because they no longer hold a full copy of the blockchain.

Good.

Hero (or any other rank) only means: I spend a lot of time here and I post a lot, well or I bought the account from someone who did. That should be no ground for trust. Look into someone if you want to trust them.

Payment received, thanks.

Bigger blocks. More miners will not make finding blocks faster as difficulty adjusts and more nodes will do nothing at all to reduce the number of unconfirmed transactions, they will just help relay them (and blocks).


IIRC both tests failed.

I think its due to the recent v2, v3 block disaster that showed more people how important or beneficial it is to have a full node. A cheap VPS that can handle bitcoin core does not cost much and its not much work either (once its set up).