Rewriting my toy blockchain in Rust | Hacker News Reader

Rewriting my toy blockchain in Rust

ezzeriesa.notion.site

112 pointskurinikku21 comments

Re: loading issues, I uploaded a pdf version to GitHub. Hope this helps! https://github.com/savarin/readcoin-rust/blob/main/post.pdf

Random plug - Bradfield CSI applications are open, highly recommend. https://bradfieldcs.com/csi

Could I reach you about Bradfield CSI program

Sure happy to share my take on Bradfield (and/or Recurse Center which I also highly recommend). Feel free to reach out https://airtable.com/shrqMzRrrdIWkv0fg

> At this stage, I could spend time optimizing the code. Ideas include (thanks to Andrey Petrov) isolating int-to-byte conversions, using bitmaps to determine leading zero bytes, and reducing allocations by using arrays.

Another easy speed up would be using an intrinsic [0] to count leading zeroes which would just call the lzcnt instruction [1] (or equivalent) and skip the need for a loop for difficulty <=64.

[0]: https://doc.rust-lang.org/std/primitive.u32.html#method.lead...

[1]: https://www.felixcloutier.com/x86/lzcnt

How can I buy in, I've got a feeling this is gonna moon, diamond hands all the way. /s/joke

Copy and paste and just post a notice about it. A few small exchanges will list for free or very cheaply and they’ll typically run a node or two, which helps the initial security of your blockchain.

Connect your crypto wallet, to this completely legit website with a slightly different domain name than the real domain name, add like, 3ETH to your wallet, and agree to the transaction. I promise it's official and you're not approving me taking all the crypto and NFTs out of your wallet.

(Joke, by the way. Although something that can happen if you're not careful).

This might help me with my analysis of Solana and Avalanche. Solana supports Rust smart contracts.

First time I tried to load it I got an error, but I'm sure I'll be able to view it sooner or later. Can confirm Notion is not great.

Polkadot is also Rust-native.

Also cosmos/terra. Mainstream ethereum dev tools are also moving to rust. See https://github.com/gakonst/foundry which speeds up smart contract testing by an order of magnitude (and more soon thx to improved parallelization).

Re: Eth tool, it compiles it down to bytecode?

Are block explorers prepared to show non-solidity code if the dev made the info available?

I was ruminating on blockchains today. So, say a coin blockchain from the CAP perspective:

Well, obviously it is distributed, so you want Partition Tolerance.

Well, obviously it is financial, so you need Consistency.

Well, obviously you always want to be able to use it so you need Availability.

But you can only pick two...

You only get two, availability and partition tolerance.

Consistency is more akin to an eventual consistency model. There may be two blocks found at the same time that are sent out to the network. At some point, nodes which accepted the minority block will re-org and become consistent with the rest of the network.

Re-orgs are why you wait for X confirmations before trusting that a transaction is finalized.

OT but why would anyone create two fresh accounts just to post those two dead/flagged comments?

Reply on news.ycombinator.com