WiiMee.eth 🟦🟥 Profile picture
Aug 8, 2022 14 tweets 9 min read Read on X
How to ⁉

Mint your NFT directly from a contract via @etherscan.

Hope this eliminates a lot of approval for alls and malicious signature signs on sc*mmy mint websites.

A detailed tutorial video on how to is in the last posts! 🎥

A step by step 🪡🧵

#SaferNFTs 1/13
First we need to know the contract address of the project that we want to mint.

Several approaches to get it without visiting the website:
1) Discord (official links channel)
2) Opensea (should be listed, 'cause: never be first to mint)
3) Project's Twitterpage

#SaferNFTs 2/13
Example: Looking for the contract address on Opensea?

Open the collection on Opensea, navigate down.
Under traits of an NFT, expand the "Details" tab. Clicking on contract address views it on etherscan.io directly.

#SaferNFTs 3/13
Little wildcard and self promo here. 😂
💡 I got some alpha for the token tracker feature in my detailed tutorial video, that is linked below.

#SaferNFTs 4/13
Click on the contract tab.
Navigate to "Write contract" and then look for the function called "Mint" or "MintLion,Ape,Whatever".

Clicking on Mint prompts you with a payableAmount in Eth and a count. Unless it's a freemint you need to know the minting price. How?

#SaferNFTs 5/13
Navigate to "read contract" look for a function called "price".

Weird format? Click the blue, funny numbers - it convert's you the price in ETH - which is needed.

Tip: On the left side you can copy the ETH amount to your clipboard.

#SaferNFTs 6/13
So - how many NFTs do you want to mint?

Free mints often only allow 1 per wallet.
Sometimes there's a max purchase [per wallet or per txn]. In the OG #LazyLions contract it was: 20.

Let's keep it simple and say we can mint only 1 NFT.

#SaferNFTs 7/13
Now we know what we've to pay + how many NFTs we can mint: Go back to "Write contract".

Connect your wallet (yes it's safe to just connect to etherscan) and then click on the mint function.
Enter what price you figured out and how many you want. Click write btn.

#SaferNFTs 8/13
Your MM 🦊 pops up and shows you're calling the mint function (yay, no set approval for all or signature requests because we minted through the contract like a boss 😎).

Click confirm and you're done minting from the contract! ✅

#SaferNFTs 9/13
IF you see a ridiculously high gasfee ⛽:

- You messed up the numbers (price and / or amount)

or

- The project you're trying to mint is already sold out (like all bluechips projects are)

Reject the txn.
Details on how to check remaining numbers in vid below.

#SaferNFTs 10/13
Had to split the video in 2 parts again.

Here's 1/2 - much easier explaining things detailed in a video and not making the thread 30 pages long!

🎶 Lofi Study - FASSounds on Pixabay

#SaferNFTs 11/13
Had to split the video in 2 parts again.

Here's 2/2 - much easier explaining things detailed in a video and not making the thread 30 pages long!

🎶 Lofi Study - FASSounds on Pixabay

#SaferNFTs 12/13
There are some exceptions to this simplified tutorial - for example if a whitelist might be involved OR the project just doesn't want you to mint off their website. Mostly it needs a signature under "Mint" then that you can't provide via etherscan.

Stay safe!

#SaferNFTs 13/13
The "how to freemint" 🧵 via @etherscan would've been a bit shorter. But I like to explain what we're actually doing here.

To sum up: 99% of scams happen on minting websites (set approval for all, signature scams) - this does avoid those websites completly!

#SaferNFTs 🛡🔒

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More from @Wii_Mee

Feb 11, 2023
You signed a gasless but probably malicious signature? 😱

If recognized fast enough,
this OpenSea feature might save your asse(t)s.

Add it to your toolbox. 🛠 🛡
2/ In this short tutorial, I'll show you how to increment your counter via the OpenSea frontend.

The goal:

⭐ Invalidate all offer / listings signatures you signed to the Seaport contract (and are still valid)
3/ First, connect the affected wallet to OpenSea.
Then, navigate to your profile page.

Either done by:
- Clicking the bubble with your PFP in the upper right
or
- Hovering over your PFP and clicking on "Profile" Image
Read 16 tweets
Oct 13, 2022
Intimidated by the new 🦊 warning?

The FIRST time you list a collection (item) to a marketplace, you'll have to use "Set Approval For All".

Why?
The marketplace needs your permission to be able to transfer the NFT / token on your wallet address' behalf if a sale happens.

🧵/1 Image
2/
Keep in mind - Approvals are per:
- Collection
- Service (marketplaces, exchanges etc.)
- Wallet address
- Blockchain

Let's jump into it. 🔍
3/
Let's break this request from Opensea down as an example.
How do we tell if this is actually a legit and safe approval request? Image
Read 14 tweets
Oct 5, 2022
"Always read what you're signing!"

Ever heard that saying in web3?

I did.

So here's how to READ and RECOGNIZE we're signing an listing to Opensea's Seaport protocol (that we might don't want).

#SaferNFTs 🛡 1/13
Everyone who's been following me for a while knows I tweeted a lot about signature / listing sc4ms.

"Offerer" is one of the biggest red flags you're looking for. 🚩

The message on the right is something you should NEVER see and NEVER expect on a non-marketplace website.

2/13 Image
But before we take a look at the drainer above - let's analyze what an legit Opensea listing signature would look like. 💡

3/13
Read 15 tweets
Jul 19, 2022
Web3 basics 101 - Your seedphrase is something you want to protect at ALL cost. If you hand out your seedphrase - it's game over for that wallet (+subwallets).

Here’s a🧵about companies entering web3 and not properly putting disclaimers up for user security.

#SaferNFTs 1/10
I chose @Stepnofficial as an EXAMPLE for this🧵, applies to all others.

For those unfamiliar with #STEPN - they are essentially onboarding people to web3 to earn crypto through their app while being active / moving / running. Which - as a concept is a cool idea.

#SaferNFTs 2/10
STEPN launched on $sol originally, expanded to $bnb and now added $eth. Different chains are referred to as realms. Basically = servers, if you're familiar with MMORPGs. Solana Realm, BNB Realm and APE Realm.

Ok, onto the security part already @Wii_Mee!

#SaferNFTs 3/10
Read 10 tweets
Jul 8, 2022
Most of your answers said: #2. 🥁

Yes, you didn't see the Origin - which would've made it too easy for y'all! 😂

Here's your answer (dont click the quoted tweet, lol):
💡Solution:

Actually all these 3 screenshots were from @opensea while interacting with the new Seaport protocol.

Correct answer (with known Origin): 2!

1 by 1 screenshot explanation below ⤵
#1
"Set Approval For All" txn would be a 🚩 and a sign to run away as fast as you can.

Interacting with a marketplace you have to give out the approval for the first listing of a collection, so they can execute a transfer on your behalf if your NFT sells.

A: Blind signing in #3
Read 8 tweets
Jul 7, 2022
#SaferNFTs 🛡🔒

❓Web3 security quiz❓

Which of the following 3 request is (probably) the safest to approve, and why?

Drop your learnings below ⤵ Image
Will reveal the answer tomorrow or so, so me liking your tweets doesn't mean you're right necessarily. ☝️
Read 4 tweets

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