There is also a course how to build something similar
Show HN: Ethereum Canvas – Draw on the blockchain
31–40 of 50 posts
Re: Show HN: Ethereum Canvas – Draw on the blockchain
#32Re: Show HN: Ethereum Canvas – Draw on the blockchain
#33Earlier quoted context omitted.
I agree completely. A shared ledger is a great idea, but not when anyone can write almost anything into it. Then it starts turning into some sort of massive torrent that has to be synced around the world.
If you've tried recently to sync up a self-hosted ETH wallet app, you've probably noticed what an incredibly long time it takes to get the whole blockchain. Meanwhile the HDD is thrashing around like crazy; if you're not using an SSD then forget it. Wallet apps like Parity are a little more forgiving (probably smarter in how they handle the blockchain), but still, it's dozens of gigabytes already. To me, the single,…
For anyone not familiar with some of the proposed scaling features for Ethereum, quadratic sharding could alleviate this problem by having hundreds of Ethereum universes that can talk to each other and commit their root merkle hash to the main chain
Re: Show HN: Ethereum Canvas – Draw on the blockchain
#34Earlier quoted context omitted.
If you've tried recently to sync up a self-hosted ETH wallet app, you've probably noticed what an incredibly long time it takes to get the whole blockchain. Meanwhile the HDD is thrashing around like crazy; if you're not using an SSD then forget it. Wallet apps like Parity are a little more forgiving (probably smarter in how they handle the blockchain), but still, it's dozens of gigabytes already. To me, the single,…
For anyone not familiar with some of the proposed scaling features for Ethereum, quadratic sharding could alleviate this problem by having hundreds of Ethereum universes that can talk to each other and commit their root merkle hash to the main chain
Sounds like a good idea.
How are transactions routed from one "universe" to another? Let's say I'm on universe A, you're on universe B, and I want to send you a few bucks.
Re: Show HN: Ethereum Canvas – Draw on the blockchain
#35There's no way a single shared blockchain would be able to serve the whole world. The number of transactions per second is one thing. The size of the chain is another. If we all start throwing money transactions AND idle drawings into the same bucket, it will overflow. Something needs to change. The current architecture clearly does not scale. Maybe something more like Pascal Coin would be better able to scale up to…
I agree completely. A shared ledger is a great idea, but not when anyone can write almost anything into it. Then it starts turning into some sort of massive torrent that has to be synced around the world.
So who decides what is worthy? If I value the penis I draw important enough to spend $100 to have it embedded into the blockchain forever, who are you to say it's garbage?
Re: Show HN: Ethereum Canvas – Draw on the blockchain
#36Doesn't actually work though.
It works - but people have been trying to submit a transaction with too little gas or too low of a gas price.
Re: Show HN: Ethereum Canvas – Draw on the blockchain
#37Earlier quoted context omitted.
> your poor investment decisions Y'all need to calm down a little.
It was supposed to be provocative someone took a hard look at the project and made up irrelevant reasons not to participate in owning the underlying gas of the network, forfeiting a 11,800% profit from $7 after the DAO incident to $830 today, and maintains that opinion while continuing to masquerade them as related!
Nothing about that relates to their investment decisions. If I'm in blackjack holding a 19 and I choose not to hit and the next card comes up a 2, was that a bad investment decision?
Re: Show HN: Ethereum Canvas – Draw on the blockchain
#38There's no way a single shared blockchain would be able to serve the whole world. The number of transactions per second is one thing. The size of the chain is another. If we all start throwing money transactions AND idle drawings into the same bucket, it will overflow. Something needs to change. The current architecture clearly does not scale. Maybe something more like Pascal Coin would be better able to scale up to…
Invested. Check out Plasma
Re: Show HN: Ethereum Canvas – Draw on the blockchain
#39Earlier quoted context omitted.
What is your rationalization for saying Lightning is not promising? I think that, given the state of the ecosystem, spreading opinion around as fact is not healthy.
It sounds like Lightning is attempting to solve an unsolvable NP-hard math problem regarding routing. [1] The Lightening network is mostly a gimmick attempt to save the design failures of scaling from the BTC communities refusal to increase network bandwidth in order to save disk space. That and for the Lightening network to work without opening up a dozen "deposit channels" into everywhere you shop, users will be pu…
I am not a bitcoin fan but I can't imagine anything like this would be affected by the NP-hardness of the traveling salesman problem.
It's not like the system breaks if someone finds a way that a payment could have been routed faster. There are quick approximations to the TSP. Also, a payment network doesn't sound like a single object that has to traverse a graph with various costs, it sounds like a network flow problem.
Re: Show HN: Ethereum Canvas – Draw on the blockchain
#40Earlier quoted context omitted.
It sounds like Lightning is attempting to solve an unsolvable NP-hard math problem regarding routing. [1] The Lightening network is mostly a gimmick attempt to save the design failures of scaling from the BTC communities refusal to increase network bandwidth in order to save disk space. That and for the Lightening network to work without opening up a dozen "deposit channels" into everywhere you shop, users will be pu…
I am not a bitcoin fan but I can't imagine anything like this would be affected by the NP-hardness of the traveling salesman problem. It's not like the system breaks if someone finds a way that a payment could have been routed faster. There are quick approximations to the TSP. Also, a payment network doesn't sound like a single object that has to traverse a graph with various costs, it sounds like a network flow prob…
i don't think 0wing got this one 100% right. he is maybe referring to a claim about lightning, that it is going to be private. but this is not true, there will be a full map of the lightning network. david gerard and emin gün sirer(one of the greatest blockchain researchers) have pointed this out: