systems, such as Bitcoin, that lack any single central authority to validate their operations and which have to use other means to determine the validity of operations.

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How to store 30kb file using Decentralized Blockchain Data Storage on NXT (nxtcoin) by attach messages?

I'm curious to how would one store a 30kb file on the NXT blockchain since the NXT protocol can attach a 1000byte message. My test scenario is storing a 30kb midi file on the nxt blockchain and then ...
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0answers
20 views

Darkcoin centralisation?

Darkcoin is supposedly completely anonymous. How does this work without any centralisation? Is there one person with all the transactions and only they mine?
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1answer
24 views

Decentralized product inventory (instead of simple orderbook)

I am thinking of creating a decentralized market place with public bidding. AS far as I have researched all cryptocurrencies and such only offer public ledgers with simple orderbooks. The only data ...
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0answers
6 views

What are the pros/cons of the Multigateway service on NXT?

I'm doing some research on the decentralized exchange multigateway on the NXT platform. I was wondering what are the pros/cons of this service compared to centralized exchanges like cryptsy?
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3answers
276 views

What are some of the advantages & disadvantages of the following: Colored Coins and Counterparty

Seeing the release of coinprism wallet for colored coins and I'm also playing with counterparty.co What are the main differences among these two competing decentralized asset managers? I see that ...
4
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2answers
108 views

Decentralized democratic voting [duplicate]

Has the fundamental problem in cryptovoting, one person, one vote, in a completely decentralized or blockchain centric manner been solved? In other words, how can votes be allocated in a ...
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1answer
97 views

Open source doesnt mean transparency [closed]

Code released by the XRP businessmen for both the client and server...is totally controlled by the XRP owners. Preprinting(easier than premining) is dishonest, and against fundamental principles of ...
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0answers
208 views

Do we know who runs the big mining pools?

After looking at the hashrate repartition https://blockchain.info/fr/pools. It seems to me that bitcoin is quite centralized, and that two big actors (mining pools company who run the bitcoind server) ...
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3answers
303 views

Is there any centralized cryptocurreny?

Is there any centralized cryptocurrency? Is cryptocurrency a Bitcoin oriented concept only? From what i read almost all of the cryptocurrencies are derivatives of Bitcoin.
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1answer
401 views

Is there a list of all cryptocoin currencies? [duplicate]

Apart from bitcoin, I know few other crypto currencies (by this I mean currency which works in a similar way to bitcon). They are: namecoin lightcoin ripple I also heard about SolidCoin, but as ...
2
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1answer
95 views

Why is decentralized e-commerce good or better?

All of the promotional materials (videos, papers, articles, etc.) on Bitcoin bill it as a decentralized solution for e-commerce/online financial exchanges that bypasses traditional banks, federal ...
7
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1answer
581 views

What is the Ripple equivalent of the “51% attack?”

In Bitcoin, if a participant gains control of more than 50% of the hash power, they can execute a double-spending attack. The "attack" could come from within, say if the existing powerful miners ...
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3answers
5k views

How is a hard fork resolved?

In March 2013 there was a fork following the v0.8 release. The issue was resolved rather efficiently, as explained in the post-mortem report. However in this process there were winners and losers: the ...
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1answer
250 views

Where does bitcoin-qt try to connect to when running for the first time? [duplicate]

My question is, where does bitcoin-qt try to connect to when running for the first time? How does it know where to connect? Is blockchain.info some domain that has discovery services? If yes, then ...
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4answers
636 views

Is mining the unfair part of bitcoin in the same way banks (or rather, fractionary reserve systems) are to current monetary system?

I've been reading a lot about bitcoin lately and I'm very interested. Especially, when it comes to making a currency that is way more fair, because it avoids a centralized control of it. However, in ...
2
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0answers
59 views

What are some resources that analyze “how centralized Bitcoin really is”

Are there any blogs that track the centralization in Bitcoin? Is it growing, or is Bitcoin becoming less centralized over time? E.g. I believe mining pools have become somewhat less centralized in ...
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1answer
59 views

Is there a way to create decentralised rating system akin to #bitcoin-otc?

I'm wondering if there is a way to create a ranking system similar to #bitcoin-otc, but making it decentralised?
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3answers
783 views

Decentralized escrow functionality built into Bitcoin?

AFAIK there are a few websites out there that offer escrow services for Bitcoin. Those however are central, i.e. I have to "trust" them. Is it being discussed, is it theoretically possible, or does ...
9
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2answers
351 views

Decentralized transactions between two decentralized currencies

Currently, bitcoins and namecoins are implemented using the Bitcoin protocol. And there might be several reason for new block chains to appear, but this is not the subject here. As far as I know, ...