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SASEUL and Crypto Mining Glossary, Every Word in Plain English

Click a blue word in any post and it brings you straight to that word on this page. If you're new to all this, New to coins? is the easiest place to start.

The basic words

Blockchain

A record book of transactions that many computers each keep an identical copy of. No one can secretly change it. If one copy doesn't match everyone else's, it shows right away.

Coin

Money that is written in a blockchain's record book. There's nothing to hold in your hand, like a bill. It's just a number in the book that says "this many for this person."

SL

The name of the coin on the SASEUL blockchain. It's also the short name exchanges use. 사슬 (saseul), 사슬코인 (saseul coin), SASEUL and SL all mean the same coin.

Wallet

An app for receiving and sending your coins. The coins aren't actually inside the wallet. It's closer to a set of keys that lets you use your share written in the record book.

Wallet address

A long string of letters and numbers you give out to receive coins. It's like a bank account number. It's safe to share with others.

But anyone who knows the address can see what went in and out of it. That's because the record book is open to everyone. Think of it as a bank account where knowing the number also shows the full statement.

Private key

The real key to a wallet. Think of it as your bank PIN and your signature rolled into one. Anyone who knows it can move your coins. Never give it to any person or any program.

Recovery phrase

A set of English words you use to bring a wallet back on a new phone or another device. It's also called a seed phrase or recovery words. The front page of Guardee (guardee.io), the SASEUL wallet, calls it a "recovery key" (복구 키 on the Korean screen).

It's like the master copy of your house key, the one that lets you cut a new key if you lose yours. Anyone who sees it can bring back your wallet and move your coins. So write it on paper and keep it at home. Don't leave it in a photo or a chat message.

An official SASEUL notice (June 19, 2026) says new Guardee wallets pick their recovery words from a list of 4,096 words. This format is for Guardee only, so it doesn't match the recovery phrases of other wallet apps.

Words you'll see when mining

Mining

Using a computer to solve a hard puzzle, adding a new page to the record book, and getting coins as the reward. It's called mining because you "dig up" coins, like digging for gold.

Proof of work

A system where whoever does lots of calculating and finds the answer first gets the coins. It's often written as PoW. It's like scratch cards: the more cards you scratch, the better your odds of a win. Doing lots of calculating uses electricity.

Mining pool

A group of people who mine together and split the coins by how much each one added. Buy a lottery ticket alone and you rarely win. Buy tickets as a group and you win more often, then share the prize. A pool works the same way.

Share

A receipt for the work you added to a pool. The pool pays out coins based on how many shares it counted. Shares that arrive late or don't meet the rules get rejected and don't count.

Hashrate

How many guesses a graphics card makes per second. In other words, its calculating speed. It's like how many scratch cards you scratch per second. The bigger the number, the better your odds of finding the answer first.

Hashrate units

The units written after a hashrate number. Each step up is 1,000 times bigger.

Unit Guesses per second
MH/s 1 million
GH/s 1 billion
TH/s 1 trillion

SASEUL's official block explorer is the one exception. Its hashrate units (MH/s, GH/s and TH/s) go up by 1,024 each step, so 1 TH/s on the explorer is about 1.1 trillion.

Difficulty

A number that sets how hard it is to find the answer. Think of it as the size of the bullseye on a target. The smaller the bullseye, the harder it is to hit, so you have to shoot more.

With most proof-of-work coins, the difficulty goes up when everyone calculates more. That keeps new pages of the record book from coming out too fast. The statistics screen of SASEUL's official block explorer shows Difficulty. At 9:23 a.m. on September 27, 2026 (Korea time) it was 375.57 T. This T isn't 1 trillion. It's 1,024 multiplied by itself four times (about 1.1 trillion), so 375.57 T is about 413 trillion.

Block

One page of the record book. When transactions fill a page, it gets attached after the page before it.

Payout

When a pool hands out the coins it mined, based on how much each member added. A small pool finds answers on uneven days, so payout days are uneven too.

Resource

On SASEUL, the value that mining rewards pile up as first. They don't come in as SL (the coin) right away. They pile up as resource, and then a command called refine turns them into SL. SASEUL's official docs describe the command as turning piled-up resource (mining rewards) into SL.

It's like collecting reward points and cashing them in later. The rate used for the swap (Refine Multiplier) is shown on the statistics screen of the official block explorer. On the morning of September 27, 2026, it was 42.763%.

People mining in a pool get paid in SL by the pool. The payout total on the saseulmine.com front page is shown in SL too.

Computer words

Graphics card

The part inside a computer that draws the picture on your screen. It's good at doing the same calculation many times at once, so it's used for mining. It's also called a GPU. The pool mining program in use today (SASEUL Miner) only works with NVIDIA cards.

Driver

The basic program that makes a graphics card work. You download the one that matches your card from NVIDIA's website and install it.

CUDA

An NVIDIA program that lets a graphics card do calculating jobs. The SASEUL mining program uses it. You install the driver first, then CUDA. This is where most people get stuck during setup.

Miner

The mining program. When it's running, it uses the graphics card to calculate and sends shares to the pool.

Command Prompt

The black window where you type text to tell the computer what to do. Click the Windows Start button and type cmd to open it. You can also mine without this window, using only the mouse.

File fingerprint

A value that checks whether a downloaded file is the real one. It's labeled SHA-256. Change even one character in a file and its fingerprint changes completely. If the fingerprint on the website matches the fingerprint of your file, the file is genuine.

Network words

Node

A computer that holds a copy of the blockchain record book and keeps swapping updates with the others. It's like a branch office that keeps an exact copy of the books.

Block explorer

A website that shows the blockchain record book so anyone can look at it. For SASEUL it's explorer.saseul.com. Enter your wallet address and it shows the coins that came in.

Validator

A computer whose job is to check that a new page of the record book was made by the rules, and then lock it in. It's like a grader marking exam papers.

The statistics screen of SASEUL's official block explorer has a Validators box. At 9:23 a.m. on September 27, 2026 (Korea time) it had 9 seats. One address sat in two seats, so there were 7 different addresses. Nodes that succeed at mining take these seats in turn, so they keep changing.

Network hashrate

The calculating speed of everyone mining that coin, added together. When this number is big, your card's share is small. When it's small, your share is bigger.

Mainnet

The network of a blockchain once practice is over and it starts running for real. For a shop, it's the grand opening.

Hard fork

An update that makes a big change to a blockchain's rules. A computer that doesn't switch to the new rules can no longer keep writing the same record book.

It's like a spelling reform where, from a set day, everyone has to use the new spelling. Stick to the old spelling and your papers split off from everyone else's. So when a hard fork is announced, you need to update your node or mining program to the new version in time.

Exchange

A place where you can buy and sell coins. When a coin is added to an exchange, that's called a listing.

Electricity words

Watts and kilowatt-hours

Power (W, watts) is how hard something is drawing electricity right now. Energy (kWh, kilowatt-hours) is that power added up over how long you used it. Your electric bill charges for kWh. Running something at 1,000 W for 1 hour uses 1 kWh.

Tiered electricity rates

A billing system where the price per kWh goes up in steps the more electricity you use. Korea's household electricity bills work this way. Mining electricity sits on top of what you already use. So it's right to price it at the most expensive step you land in that month.

It works a little differently if mining pushes you into the next step. The part below the line keeps the lower step's rate, and only the part over the line gets the pricier rate. The base charge goes up instead (in Korea, for example, from 1,600 to 7,300 KRW). The full math is in the electricity cost post.

Sources