fastdev

80 ms·

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Ask HN: How to fix an error on a blockchain?
1 points by fastdev 8y ago|0 comments
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by fastdev 8y ago
Isn't this also its biggest drawback? If every node has equal say we need to have additional complicated logic to ensure consensus, while in a centralized system we do not need to this, since a centralized system is a source of truth a
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by fastdev 8y ago
> But very often they can't do the optimal prices Are there any reasons why a centralized marketplace are worth in price discovery? > eg stock not listed on nasdaq I guess if a stock is not listed on Nasdaq it either listed somew
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by fastdev 8y ago
> In my understanding the main selling point of blockchains is to outsource the accepting of state changes to a consensus protocol which does not involve human interaction/interference. And just as git a blockchain still works if on
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by fastdev 8y ago
Ethereum was a target of DDoS attacks few years ago and the community has made several updates to improve the protocol since.
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by fastdev 8y ago
> You are mixing things up. While it's true that Cryptocurrencies try to solve a different problem than BitTorrent, Git and Email neither of those applications rely on a single centralized server owned by a single company. I don&#x2
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by fastdev 8y ago
Git is somewhat similar to blockchains, but the similarity is very loose. Bitcoin has a shared state and enforces strict rules of how it can updated. For example I can't spend non-existing funds in Bitcoin. Also all state transitions a
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by fastdev 8y ago
> NEO can't do 10,000 tps. It seems that the article is just referring to the same 10K transactions per second number mentioned in the NEO documentation. >> The entire network has gone offline, multiple times, when handling a
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by fastdev 8y ago
> However, in reality centralisation is harder to scale, due to the bottle necks on the central parts of the system. Decentralisation can be theoretical easier to scale, as bottlenecks don't occur as easily. There is a difference be
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by fastdev 8y ago
> Can some of you give me the run down on the benefits of centralization? At the moment the benefits are pretty clear. Centralized systems like YouTube, Google, Airbnb, Uber, Spotify, Amazon.com, and many others simply work. They scale f
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by fastdev 8y ago
Great example! > With regard to currency, I imagine BitCoin is better than the currencies of some governments. I don't think it's better than US currency, by a long shot. US currency has flaws, but I don't see that BitCoin
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by fastdev 8y ago
Hacking a crypto exchange is not the only way to steal coins. Decentralized applications/smart contracts on a blockchain can be attacked as well.
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by fastdev 8y ago
It seems like Bitcoin network has never been hacked, but distributed applications were hacked with spectacular monetary losses, for example, "The DAO": https://www.coindesk.com/understanding-dao-hack-journalists&#x
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by fastdev 8y ago
> Email is decentralized, heck even http is decentralized. I'll quote my answer to the similar from this thread: "Blockchain-based systems allow storing a shared, verifiable state. Anybody has a chance (depending on mining reso
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by fastdev 8y ago
> The decentralized approach to this is to announce the sale on the network/market and pick the best offer It seems that we already have similar marketplaces implemented in a centralized fashion, e.g., Nasdaq. It allows to perform p
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by fastdev 8y ago
Electricity marketplace is a good example and is commonly mentioned as a killer-app for blockchain technologies. But what technology would you use to implement this marketplace? Would you use a public, permissionless blockchain like Ethereu
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by fastdev 8y ago
True, Decentralized systems != Cryptocurrencies, but email, BitTorrent, and Git are different from what Bitcoin, Ethereum, and other blockchain system provide. Blockchain-based systems allow storing a shared, verifiable state. Anybody has a
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by fastdev 8y ago
> Or some system gets hacked, and information or money gets leaked/lost. I am not sure how blockchain/decentralized technologies allow protecting from hacks or money loss. They seem to be as susceptible to hacks as non-decentra
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Ask HN: Do we need fully decentralized systems?
71 points by fastdev 8y ago|87 comments
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Ask HN: How do you create additional income streams?
2 points by fastdev 9y ago|1 comments