Colored coins are a method to track the origin of bitcoins, so that a certain set of coins can be set aside and conserved, allowing a party to acknowledge them in various ways. Such coins can be used to represent arbitrary digital tokens, such as stocks, bonds, smart property and so on.
The colored coins protocol is decentralized just like Bitcoin, but the ...
Assuming Bitcoin is still active at that point in time, mining will continue, because transaction fees will make it worthwhile to do so.
This topic has been discussed heavily in other answers, including:
What happens once the mining reward gets cut in half?
How many bitcoins will there eventually be?
How much will transaction fees eventually be?
The last ...
NooShare is an idea for:
a decentralised ledger similar to Bitcoin with the novel feature that
its proofs of work are iterations of essentially arbitrary
Markov-Chain Monte-Carlo (MCMC) chains, the scheduling of which can be
purchased using the currency itself. It is a novel economic basis for
sharing fallow computational resources.
I don't know ...
Here are a few ways Bitcoin can be affected by the decisions of a wealthy investor:
Value manipulation: A wealthy investor can sell coins or purchase coins in such a rapid pace that the market sinks or rises to an unrecoverable level. In real exchanges, the SEC protects investors from these hostile trades. There is no SEC protection with Bitcoin. Update: ...
Every block has exactly one "coinbase transaction", the one transaction which doesn't have actual inputs, but gets all the fees and mining subsidy.
Every 210000 blocks, this subsidy halves. Right now, each block is allowed (not required!) to bring 50.00000000 BTC into circulation. Very soon, this will become 25.00000000. Four years later, 12.50000000. And ...
Assume for a second that we found a proof of work algorithm that had all of the good properties of sha256, but was also useful for SETI and maintaining world peace.
Now suppose a group of miners collectively have more than 51% of the hashing power. In which of the following scenarios are they more likely to collude to double spend via a 51% attack:
A) When ...
In terms of thwarting P2P currencies, in addition to those mentioned in makerofthings7's answer, I will add:
Delaying transactions with only minority Proof-of-work share.
Forking the protocol with majority Proof-of-work share.
Employing black budgets outside of public view.
Selling put options to gain the money to attack with.
Using the law to keep the ...
Idealists might argue that Bitcoin was developed to forever change the financial landscape, and would be affronted at the suggestion that Satoshi was out for profit. Skeptics might call the whole thing the most elaborate Ponzi scheme ever envisioned. Realists might suggest that Satoshi, emotionally traumatized by the recent unceremonious departure of his ...
I appreciate the enthusiasm of those who have answered this question. Everyone here clearly wants bitcoin to succeed, and so everyone is enthusiastic. I am enthusiastic, too.
I am afraid, however, that this enthusiasm is coloring respondents' logic. Literally every response on this page (especially the highest ranked one) is wrong.
In order for a ...
Paul Krugman, who is apparently the "17th most widely cited economist in the world today", wrote this article in Sep 2011:
Personally, I'm not convinced that Krugman fully understands Bitcoin though (after all, it has substantially different properties to other money), and I'm not the only one....
There is no way to determine (that I can imagine) the number of lost private keys, you would have to make a guess that after x years without movement the private key is lost but that would just be a guess.
Adding to my answer on What are some of the proposed ideas to why the Bitcoin dropped to sub $400 in the end of summer 2014?, which I think is still mostly accurate:
There are about 19k bitcoins held by the hacker that raided Bitstamp. While, as far as I know, they haven't found their way back into the market, it is an amount that would ...
You could easily create a bitcoin2, bitcoin3, ... you could create an infinite number of bitcoin currencies having different parametric spaces. These would live in separate mathematical spaces however, so you wouldn't for example be able to create bitcoins in bitcoin2 that affect bitcoins in the original bitcoin: it would be a completely separate system.
I really think Bitcoin's biggest vulnerability is the 51% attack that can be performed by entities with large amounts of money, not any regulatory issue. Last I heard, it would cost $16 million to carry out a 51% attack.
While this is a lot of money to most people, it's chump change to the federal government or Visa / Mastercard / Large banks. I saw a ...
Once upon a time someone used Bitcoin's ability to embed arbitrary text inside a transaction to put an ASCII Art Ben Bernanke into the blockchain. Referring to the fact that current blocks must still reference the Bernanke block as a "dependency" rounds out the joke.
The Chinese are intense savers and frugal. Their interest in Bitcoin will involve relatively small price corrections.
Do you want to say the will be resistent to price drops (in the bubbles for example)?
Yes. Bubbles will still happen, but the correction would be less severe because Chinese investors tend to buy-and-hold through the ups and ...
I like this question1 - we don't get many big picture questions.
How could Bitcoin change the world?
A mature digital cryptocurrency could reduce trade barriers and thus
increase the rate of productivity dispersion throughout society. As
money is a form of fungible authenticated information2,
non-proprietary digital money gets to take advantage of the
The best way to derive the possible value is by looking at market cap of bitcoin as a whole. There is currently about 1.2 trillion in USDs in physical currency alone. There are many ways to count how much USD there is though.
M1 represents all of the currency in the M0 money supply, plus all of
the money held in checking accounts and other checkable ...
Take a look at Bitcoin apps available for your mobile phone. Several are recommended in answers to question Can I send bitcoins with my mobile phone?. Look for apps that offer some kind of offline mode.
For instance, the highly recommended Bitcoin Wallet app for Android mentions in its feature list, "Enter transactions while offline, will be executed when ...
The number of bitcoins issued each day is targeted to at 7,200 BTC per day. Beginning with block 210,000 that number will drop to 3,600 BTC per day.
The distribution as to which miners will be getting the newly issued coins will change once ASICs are out, but the actual quantities issued will not. (Well, there could be a few thousand extra coins for a few ...
Bob Murphy spoke about Bitcoin in his Reddit Ask Me Anything video http://www.youtube.com/watch?v=wyUNdzLwte4&feature=youtube_gdata_player
He commented in relation to regression theorem. Many Austrian economists believe that Bitcoin violates Mises' regression theory, as if Von Mises was supposed to predict computationally ensured persistent logical ...
As I explained in another answer, we can not meaningfully use measures of dormancy from P2P currencies in Quantity Theory of Money comparisons relative to GDP (or in Visa's case total Q over the period).
I also explained in that linked answer why it is unlikely that Bitcoin would obtain the same velocity multiple of 8 per quarter as with fiat.
Expounding, in ...
Being decentralised, it appears Bitcoin is less susceptible to regulation. But the weak point may be where you attempt to bring your Bitcoins back into the real economy - and this appears to be where the USG is striking first:
"US Begins Regulating BitCoin, Will Apply 'Money Laundering' Rules To Virtual Transactions" (Zero Hedge, 21 Mar. 2013)
There are a few currently operating Bitcoin security exchanges with non-negligible volumes:
Opened at the end of June 2012. Run by the owners of Vircurex, a fairly popular alt-currency exchange.
Launched mid-December 2012. Run by the owners of Hashpower, a mining intermediary of ...
I found this link the other day that shows where you can use bitcoins https://www.spendbitcoins.com/places/?place_type=service mostly for hosting companies, some poker sites/online casinos & many computer co's that i'm sure most people would never use right now.
Saw an article that a restaurant in NY wanted to accept them soon but probably its a ...
This is a highly speculative question. From a technical point of view there will eventually be 21 million (21e6) bitcoins in circulation, yes. But we are already witnessing a shift to using the millibitcoin (mBTC) when denominating prices.
This use of ever smaller fractions may go on until we reach the satoshi (1e-8 bitcoins). We would effectively have ...