Hold or dump depends on your financial situation and the % of your net worth you have invested in cryptocurrencies.
You should never base your trading action on what the price is doing.

Blah blah blah, do it!


I think you can actually try an attack spending 2 or 3% of the bitcoin market cap.  
When inflation drop to 0.5%, 0.1% of the bitcoin market cap will do the job, maybe even less then that if the mining has centralized further.
By then, not the government, not a terrorist organization, not an asteroid but speculation will have destroyed it.
And for those who think transaction fees will be enough to pay for the security i want to ask them how useful is bitcoin if you must spend 2 or 3 $ to do a transaction.
The bell shaped curve of yearly transaction revenues from fees, has a point of maximum which is not proportional to the market cap of the coin, if you raise fee beyond that point revenues will drop and the same will happen if you set minimum fee too low, i don't know how much total revenues from fees could be at best, but i'm sure it will not be enough and it is a very stupid idea imposing 100% of the costs on those who make transactions and will porbably result in a disaster.
Cost of security in a POW must be proportional to market cap, and must be paid by stakeholders via inflation like it's happening today.
That's why bitcoin economic model is actually working, neverending inflation is necessary for POW to continue working properly.

Another 15 pages of POW vs POS debate, such WOW!  

In the end the truth is bitcoin is consuming 10% of its market cap each year (500 million $) to mantain a decentralized (not so decentralized lately) ledger.
That means if you have 100k $ of wealth in bitcoin you need to pray that the USA government don't change its mind about bitcoin while you work hard to earn at least 10k $ per year if you do not want to lose purchasing power.
Or...
you can just buy all the NXT you can for the current extra cheap price, sit on them and enjoy all the benefits of a natural steady deflation which increases your purchasing power.

You clearly didn't understand what i was trying to say.
POW is not stable with low or 0% inflation and the entire cost of network security pushed on those who make transactions, it simply cannot work properly.
For a POW coin to be stable and reliable cost to attack must be proportional to market cap and it must be paid by stakeholders via a constant inflation.

This is wrong i think.
Imagine you have two coins only.
Coin A is POW, it is 10 years old, it has 100 billion market cap, it has 5% inflation, it costs 1 billion to attack it and every merchant on earth accepts it.
Coin B is POS, it is 5 years old, it has 1 billion market cap, it has 0% inflation, it costs 1 billion to attack it and no merchant accepts it.
You can switch from one coin to the other one for free or very very cheaply.
In this scenario every rational investor would chose to have most of his savings in coin B and he would switch to coin A only when he needs to spend.
As time goes by almost everyone moves from coin A to coin B, coin B market cap grows to 100 billion, coin A is slowly abandoned, merchants forget about it and start to accept coin B only.
This is why i thin the coin that will win the crypto race is the coin which provides the strongest network at the lowest cost.
Network effect might not be enough to save bitcoin.

A = resources you have to waste to attack the coin
B = market cap of the coin
k = constant

Y = Probability the coin is succesfully attacked in the real world = k * (B/A)

Since A in a POW coin is proportional to inflation rate you can conclude that as inflation goes down the probability of an attack increases.

Don't forget bitcoin gets a lot weaker at every halving.
Good luck having your wealth in a POW coin with inflation below 2%.

The value of a coin that is inflating at 10% is pushed down 10% per year against a coin who has 0% inflation, this is done by speculators.
In reality some years the inflationary coin will go down 30% some other years it might gain 10%, but on average the 10% yearly inflated coin will always go down 10% per year against a coin who has no inflation.
In the short term everything can happen but in the long term you might find yourself working hard just to keep up with inflation if all your holdings are in a 10% inflationary coin.
And please don't tell me bitcoin inflation is temporary and it will go to 0, no POW will ever work with 0% inflation.

Yes i agree with you, it is ACTUALLY more difficult to control majority of bitcoin hash power then a few major stake holders of a 1 year old POS coin.
However it will not always stay the same, as POW mining reward decreases and POS coins get more distributed the former becomes weaker and the latter becomes stronger.
If you try to attack two coins with the same market cap, one is POS and the other one is POW, you will probably end up wasting a lot more resources attacking the POS.
POW ages like milk, POS ages like wine.

So you really think majority of hash power having full control of the protocol is better then stake holders leading the coin development? Are you serious?

https://bitcointalk.org/index.php?topic=848881.0

Point 7

Bitcoin POS version would turn badly very soon.
99.9 % of bitcoiners are POW fanatics, as soon as you gift them a POS coin they would rush to sell it at any price the market is paying for it.
This would probably crash the market cap of the bitcoin POS to 2 or 300k $, as a consequence it will become very centralized in the hands of a few believers, better stick to the oldest POS coins, they are better distributed then any bitcoin POS fork will ever be.

продaю koды  BTC-E за  2,000,000 руб возможная оплата через банковский перевод пишите мне ваши предложения.
вожмозноe разделение на меншее кол во не менше 100,000

No non mi sei stato d' aiuto, io ho perso 3 btc per colpa sua e dopo aver promesso di restituirmeli, è sparito e non si è fatto più vedere.
Per me è abbastanza per dire che è uno scammer ed è importante che altri utenti lo sappiano, beato te che non hai mai avuto problemi.

Scammer.
Dovevo vendergli 4 btc qualche mese fa, dopo che ho inviato per primo si è inventato la storia di un hacker che gli ha rubato l'account di skype proprio il giorno in cui ci eravamo messi d' accordo per scambiare.
Dopo essersi impegnato a rimborsarmi, è sparito dalla circolazione oramai da più di un mese.

Evitate di fare affari con lui.

I'm trying to use the API call for cancelling multiple orders at once but it doesn't work.


If i post a request with the following JSONpayload:

{"request":"/v1/order/cancel/multi","nonce":"311508580","order_ids":[{"order_id":"140046162"},{"order_id":"140046163"},{"order_id":"140046164"}]}


I receive the response:

{'result':'Orders cancelled'}


But the orders are not really cancelled, they remain opened.
What am i doing wrong?

EDIT:
Thx to Raphael i solved this, the correct payload should be:
{"request":"/v1/order/cancel/multi","nonce":"311508580","order_ids":[140046162,140046163,140046164]}

That would crash the price of bitcoin so hard...

Prezzo aggiornato a Bitstamp + 7%!

Exactly.

I will move 100% to NXT