Tweet

@TheMycoverse

This Thread may be Removed Anytime!

Twitter may remove this content at anytime! Save it as PDF for later use!

More from @pencilflip

pencilflip.sol 🍄 (📜,📜)

@pencilflip

10 Nov

@smilesssvrs

How do NFT whitelists work on Ethereum? It's pretty simple—let's take a look at the @smilesssvrs smart contract to see how they did it 👇

https://twitter.com/smilesssvrs/status/1454978463291658241

1/ The contract has a state variable called "_mintStatus."

This determines whether minting is only open to people on the whitelist (Acts 1-4), or is open to the public (Public 1-2).

Each status is associated with a minting limit. E.g. during Act 1, one person can mint 9 NFTs.

2/ Only the owner of the smart contract is allowed to change the status.

Read 10 tweets

pencilflip.sol 🍄 (📜,📜)

@pencilflip

3 Nov

PDAs, or program derived addresses, are one of the trickier #Solana concepts 🤔. They're also something that every Solana dev should understand.

In this thread, I'll go over what they are, and why they're useful 👇

https://twitter.com/pencilflip/status/1452402100470644739

1/ First of all, if you don't know how Solana's account model works, check out this thread. It's only 5 tweets!

https://twitter.com/pencilflip/status/1452402100470644739

2/ Now, onto PDAs, or program derived addresses.

The name is pretty self-explanatory—a PDA is an address derived from a program.

The address points to a data account, which can hold state.

Read 37 tweets

pencilflip.sol 🍄 (📜,📜)

@pencilflip

25 Oct

Proof of Stake is used by #Solana and Ethereum 2.0. But what is Proof of Stake, and how does it work? A short thread 👇

1/ "Proof of stake is a type of consensus mechanism used by blockchain networks to achieve distributed consensus."

In other words, Proof of Stake enables nodes in a blockchain network to agree on the state of the blockchain.

2/ For example, nodes should agree on:

- Which blocks are included in the blockchain
- Which transactions are included in each block

Read 12 tweets

pencilflip.sol 🍄 (📜,📜)

@pencilflip

24 Oct

#Solana accounts explained in 5 tweets 👇

1/ There are 2 kinds of accounts in Solana.

Data accounts store data. Program accounts store executable programs.

Each account has an address (usually a public key) and an owner (address of a program account). There are a few more fields every account stores, see 👇

2/ There are a few important ownership rules:

- Only a data account's owner can modify its data and subtract lamports.
- Anyone is allowed to give lamports to a data account.
- The owner of an account may assign a new owner if the account's data is zeroed out.

Read 7 tweets

pencilflip.sol 🍄 (📜,📜)

@pencilflip

23 Oct

@solana

I'm currently learning how to program on @solana, and have found it much more difficult than learning to program on Ethereum.

Luckily, there are lots of great resources out there. Here are the ones I've found most helpful! 👇

1/ First, it's helpful to at least slightly understand Rust 🦀 before diving into Solana dev.

Luckily, there's a great free book about it!

You don't need to read the whole thing, just enough to get the syntax down. You can always refer back to it later.

doc.rust-lang.org/book/

@ProjectSerum

2/ Anchor (by @ProjectSerum) is a framework that will make your life much easier.

There are three parts to Anchor:
- A TypeScript library that's similar to web3.js
- Rust crates that make writing Solana programs easier
- A CLI for building/testing, similar to @HardhatHQ

Read 13 tweets

pencilflip.sol 🍄 (📜,📜)

@pencilflip

21 Oct

@opensea

ERC721 is the "gold standard" for NFTs. But ERC1155 is another commonly used standard—in fact, it's the one @opensea uses!

So what is ERC115, and how does it differ from ERC721. You guessed it... it's another thread 👇