Just ask here if you need some test coins. I already mined a first block.
65327F379B46603EB49B8F2D3B399F909E828E08
Show HN: A Browser-based Blockchain
121–130 of 149 posts
Re: Show HN: A Browser-based Blockchain
#122Just ask here if you need some test coins. I already mined a first block.
82BBE749262A07DF89E0045AF12929C31259374B
Re: Show HN: A Browser-based Blockchain
#123Earlier quoted context omitted.
in Santa Teresa Costa Rica
Okay, looks like this place: http://www.skyloftcostarica.com/ . Wonder if that's full time or just a field trip.
There you get an insight how hard they work on this project https://www.youtube.com/watch?v=MOgOWWVinfY&list=PLuhSf5DE3F...
Re: Show HN: A Browser-based Blockchain
#124The next alt coin
Re: Show HN: A Browser-based Blockchain
#125I like the idea of reducing the barrier to entry in the multitude of markets, but I'm also a bit cynical in that any web-based wallet seems extremely risky to me in terms of the potential for attacks and stolen coins.
Re: Show HN: A Browser-based Blockchain
#126Left this running all day at about 30kh/s and got 200 coins
Couple of hints:
* Have a way of backing up your private keys! Many people delete browser local storage and this is not a safe or long term place for them to live! NAG THE USER TO DO THIS. 99% of the people here betanet will lose their keys, fo sure
* Consider hierarchical deterministic (HD) generated keys, so a single seed can generate all future keys
* Consider brainwallet seed (must be long, suggest at least 256 bits entropy), custom dictionary words
Most cryptocurrencies use secp256k1 or ed25519 for ecdsa/xeddsa as their curve, this is using P-256. Satoshi was suspicious of the NIST curves, thats why he didn't use P-256 for bitcoin.
You will need something better than SHA256 for PoW function too, others have identified memory hard hash as idea. Look at Momentum (ProtoShares), EtHash (Ethereum) and CryptoNight (Bytecoin/Monero) as approaches to this. All have rolled their own in this space, keep you tx hashes standard but use something creative for PoW function.
Re: Show HN: A Browser-based Blockchain
#12717% CPU utilization when mining. You need to multithread that.
Or better yet, implement it in a WebGL shader.
Re: Show HN: A Browser-based Blockchain
#128Just ask here if you need some test coins. I already mined a first block.
1E883119EF2B74EA2B225F9E74CBF17612BE3105
Just trying this out, but needs dem coins :O
Re: Show HN: A Browser-based Blockchain
#129Left this running all day at about 30kh/s and got 200 coins Couple of hints: * Have a way of backing up your private keys! Many people delete browser local storage and this is not a safe or long term place for them to live! NAG THE USER TO DO THIS. 99% of the people here betanet will lose their keys, fo sure * Consider hierarchical deterministic (HD) generated keys, so a single seed can generate all future keys * Con…
Thanks a lot for your feedback!
The protocol we've deployed in our Betanet is not final. The Betanet is just about getting early community feedback and testing in the wild. There will be lots of breaking changes.
We will not use NIST curves in our mainnet for the reasons you mentioned. We are working on an implementation of ed25519 in WebAssembly.
We will not use sha256 as in our mainnet. We are already working on a WebAssembly implementation of a memory hard POW.
We want to bring blockchain technology to the masses. So in the long run we are explicitly targeting users who are not yet familiar with cryptocurrencies. Following from that we will put a lot of effort in creating user interfaces that take users by the hand and explain important aspects like "How to keep your private key secure".
Re: Show HN: A Browser-based Blockchain
#130This is good until the ASICS come in force and make mining in the browser useless.
This is the Betanet. We will not use sha256 as in our Mainnet. We are already working on a WebAssembly implementation of a memory hard ASIC resistant POW.