What is MimbleWimble?
It is a blockchain protocol.

What it does?
It provide solutions to a number of shortcomings found in bitcoin - privacy, fungibility, scalability.

What's wrong with bitcoin privacy?
Sender, receiver, amount of transactions are all public!
Blockchain analysts are able to link bitcoin addresses to the owner.
They can even trace the sender's IP address and link the transaction activity to the owner.
Anyone who know your bitcoin address will know how much bitcoin you have and all your transaction history.

How does MimbleWimble solve this bitcoin privacy?
MimbleWimble utilize existing methods such as Confidential Transactions (CT) and CoinJoin (CJ) to mask all the transaction details.
MimbleWimble does not have any fixed wallet address. For every new transaction, a one-time address is generated.

What's wrong with bitcoin fungibility?
There are a lot of bitcoins obtained in many illegal ways by scammers.
Scammers try to sell you bitcoin and you bought some of the "tainted" coins.
Blockchain analyst traced the coins to you even though you are innocent.
You found out the coins are "tainted" and desperate to sell it of - cheaper.
So the "tainted" bitcoins do not worth as much as other bitcoins - Fungibility compromised.

How does MimbleWimble solve this bitcoin fungibility?
By disconnecting any relationship between the coins and the owner, every coin received is like a fresh minted coins. People won't know who the previous owner is. Effectively making every coins are of the same value.

What's wrong with Bitcoin scalability?
In order to setup a bitcoin node, you need to download 237GB (As of August 2019) of blockchain history. Not everyone is able to setup nodes due to the resource intensive and it is highly centralized.

How does MimbleWimble solve this bitcoin scalability?
MimbleWimble uses technique such as "cut-through" where unnecessary information is "pruned", significantly reduce the size of the blockchain (up to 90%).
Smaller blockchain size means faster processing time and faster transaction confirmation.
Smaller blockchain size also means more nodes are easily added to the network, making the blockchain more de-centralized.

Cool. I've heard the goods of MimbleWimble. What are the bads?
Bitcoin has script. MimbleWimble is scriptless. That means:
No atomic swaps
No Lightning network
No multi-signature transactions
No time-lock transactions
Sender & Receive must both online to have some interaction in order to make transactions.

What MimbleWimble coins are there?
Grin (Launched and listing for trading)
Beam (Launched and listed for trading)
Epic.tech (Not yet launch)

Very informative, thanks.
I studied bitcoin in - the new digital gold by Nataliel Popper in early 2017.
But never studied as to how exactly bitcoin works. So I have no idea about bitcoin scripts, UTXO, multisignature, SHA, etc.
This is helpful.

项目名称: EPIC CASH
代币名称: EPIC
区块时间: 1分钟
区块体积: 1MB
开始供应: 0
最后供应: 21,000,000
共识算法: RandomX (CPUs), ProgPow (GPUs) and CuckAToo31+ (ASICs)


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Hi everyone. I'm Leslie Freeman from Malaysia.
I'm an Electrical & Instrumentation engineer who worked in oil & gas industry, mostly office desk job but sometimes travel to onshore/offshore for technical support.
I started learning crypto since early 2017 and was lucky to ride the bull market.
Now I'm part of the Freeman family where we are going to launch our own epic private internet cash based on MimbleWimble protocol.
My role is to spread to words particularly in the chinese crypto community, moderate some social media group chats, write & translate articles and make video tutorials to share crypto information to the world for free.

I am able to speak mandarin, english and bahasa malaysia.
I'm a non-geek guy but still very fascinated with cryptography and the maths behind cryptocurrency & blockchain technology. Reading technical whitepapers multiple times pretending that I actually understand it lol.

Nice to be here.