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Use that unless you have some real reason to do otherwise - all integrations are easier if you use 18 like most other tokens. Some tokens, especially stablecoins, use less decimals. …

The list you found is simply a list of tokens, sorted by their circulating market cap (in dollars). Having a big (and steady) dollar market cap is a good indicator that the token is not a scam token. … But in general, if you know which tokens you want to include, I would search the project's home pages for the contract addresses. I would not trust a listing like that - it can be manipulated. …

In general, you have the best control over transaction positioning if you send it privately, outside the typical mempool. So using something like Flashbots. Although I'm not sure what kind of function …

Anyone can send you tokens. You can't stop it. Malicious actors sometimes create malicious tokens and send them to random users. … So whenever you see weird tokens in your wallet you can just ignore them. It doesn't mean that you would be hacked. …

The only entity that can help you with this is Revolut. If they have have access to address X on one EVM network they also, in theory, have access to it in any other EVM network. Althought there's a b …

A seed phrase gives you a private key, which gives you a public address. What you want is to check assets that belong to that public address. Unfortunately, checking assets for an address is not trivi …

No that's not good. If the site generates the wallet for the user, it either has to send the corresponding private key to the user or manage the wallet itself. Both are bad options for various reasons …

Since you're using version 0.4.x there is no underflow protection by default. So things underflow unless checks are added explicitly. So something like this underflows just fine: pragma solidity 0.4.2 …

Your contract is relying on a password, which is set in the constructor. The password variable field is marked as private. Nothing in Ethereum is private. All data is public. Using a contract variable …

It all depends on the contract you use for the presale. If the contract has functionality for you to withdraw funds at some point, then you can do it. If it doesn't have such functionality, you obviou …

I'd say it depends. This kind of things can either be at the contract level or in the metadata. Metadata is the data which is usually pointed at with an URI inside the contract, and the metadata conte …

A keccak256 string has a length of 256 bits. Obviously, uin256 also has 256 bits. Since they both have the same length, there shouldn't be any problems when converting them even back and forth. I real …

One of the formats is used to query "which tokens does address X own". Metamask then queries for that data whenever new blocks are received. …

And, in my opinion, you shouldn't try to add MEV protections to your tokens themselves anyway. … Tokens should be really simply and old include minimum logic. …

There aren't any standards (at least any that would be in use) for setting the mint price. So everyone implements it in their own way. Therefore there is no universal way to retrieve it - and many con …