Glossary

Crypto mining glossary: clear definitions of mining terms like hashrate, block reward, difficulty, nonce, and more. Your quick reference guide.

A

ASIC: An ASIC miner is specialized hardware built to mine one specific cryptocurrency algorithm with maximum efficiency and speed.
Autolykos: Autolykos is Ergo's ASIC-resistant mining algorithm that uses memory-hard computations, designed specifically for GPU mining with built-in adjustable difficulty.

B

Block: One-sentence definition:A block is a little list of transactions made online. Why it matters (2–3 sentences):Blocks matter since they are...
Bitaxe: An open-source, compact Bitcoin ASIC miner designed for home solo mining, using single mining chips to deliver 200-700 GH/s at ultra-low power consumption.
Blake3: Blake3 is a cryptographic hashing algorithm used by some cryptocurrencies for mining, designed to be extremely fast on both CPUs and GPUs.
Block Explorer: A block explorer is a search engine for blockchain data that lets you track transactions, blocks, and mining activity in real-time.
Block Header: A compact summary at the top of each block containing metadata that miners hash to find valid proof-of-work solutions.
Block Height: Block height is the position number of a block in the blockchain, counting from the first block ever created.
Block Reward: The block reward is the amount of new cryptocurrency a miner receives for successfully mining a block on the blockchain.
Block Time: Block time is the average amount of time it takes for miners to find a new block and add it to the blockchain.
Blockchain: A blockchain is a chain of blocks containing transaction data, linked together using cryptographic hashes to create an unchangeable record.
Break-Even Point: The point where total mining revenue equals total costs—when you've recovered your hardware and electricity expenses.

C

CKPool: CKPool is a popular open-source mining pool software that runs public solo mining pools, letting you keep 100% of block rewards if you win.
Coinbase Maturity: The waiting period before you can spend newly mined coins, typically 100 blocks, protecting the network from blockchain reorganizations.
Coinbase Transaction: The first transaction in every block that creates new coins and pays them to the miner who solved the block.
Confirmation: A block confirmation occurs when a new block is added on top of the block containing your transaction, making it harder to reverse.

D

DAG Size: The memory file used by Ethash algorithm GPUs that grows over time, determining minimum VRAM requirements for mining certain cryptocurrencies.
Difficulty: Mining difficulty measures how hard it is to find a valid block hash, adjusting to keep block times consistent across the network.
Difficulty Adjustment: The automatic process that changes mining difficulty to keep block times consistent as network hashrate changes.

E

Electricity Cost per kWh: The price you pay for one kilowatt-hour of electrical energy, measured in cents or dollars—the biggest ongoing expense in cryptocurrency mining.
Equihash: Equihash is a memory-hard mining algorithm designed to resist ASICs and favor GPU mining through high RAM requirements.
Ethash / Etchash: Ethash and Etchash are memory-hard mining algorithms designed for GPU mining, originally used by Ethereum and now by Ethereum Classic.
Expected Time to Block: The average time it should take your mining hardware to find a block based on your hashrate versus the network's total hashrate.

F

Fork: A blockchain fork occurs when a cryptocurrency's protocol splits into two separate chains, either temporarily or permanently.
FPGA: FPGA (Field-Programmable Gate Array) is a reprogrammable chip that can be configured for crypto mining, offering flexibility between ASICs and GPUs.
Full Node: A full node is a computer that stores the complete blockchain and independently verifies all transactions and blocks without trusting anyone else.

G

Genesis Block: The first block ever mined in a blockchain, hardcoded into the software and serving as the foundation for all subsequent blocks.
getblocktemplate: A Bitcoin RPC command that lets mining software request block data from a node to construct and mine new blocks independently.
GPU Mining: Mining cryptocurrency using graphics processing units (GPUs) designed for parallel computing tasks like rendering and hashing algorithms.

H

Hash: One-sentence definition:A Hash is an algorithm that verifies that a block is valid. Why it matters: A hash is important...
Hashrate: One-sentence definition:The Hashrate is how often a miner can guess the hash Why it matters (2–3 sentences):The hashrate basically decides...
Halving: One-Sentence Definition A bitcoin halving is a programmed event that happens roughly every four years where the reward for mining...
Hash Rate Units (KH/s, MH/s, GH/s, TH/s): Hash rate units measure mining speed from KH/s (thousand) to TH/s (trillion hashes per second), helping you understand your hardware's computational power.
Hot Wallet vs Cold Wallet: Hot wallets stay online for quick access while cold wallets store crypto offline for maximum security—critical choice for solo miners protecting rewards.

J

Joules per Terahash (J/TH): A measure of mining hardware energy efficiency showing how many joules of electricity are needed to compute one terahash of hashing power.

K

KAWPOW: KAWPOW is a GPU-friendly mining algorithm used by Ravencoin that resists ASIC mining through random program generation and memory-intensive operations.
KHeavyHash: KHeavyHash is a memory-hard mining algorithm used by Kaspa that combines hashing with matrix operations to resist ASIC dominance while favoring GPUs.

L

Lottery Mining: A nickname for solo mining that compares it to playing the lottery — you have a tiny chance of winning big with each block attempt.
Luck (Mining): Mining luck measures how quickly you find a block compared to statistical expectations based on your hashrate and network difficulty.

M

Mining: One-sentence definition: Mining is using a specialized machine to find a required hash. Why it matters: Mining is one of...
Mining Hardware: One-sentence definition: Mining hardware is the specialized computer equipment used to solve complex math problems in order to mine Bitcoin...
Mempool: The mempool is the waiting room for unconfirmed transactions before miners include them in a block and add them to the blockchain.
Merkle Root: A single hash that represents all transactions in a block, created by combining transaction hashes in a tree structure.
Mining Calculator: A mining calculator estimates potential mining rewards based on your hashrate, power costs, and network difficulty—essential math before solo mining.
Mining Profitability: Mining profitability measures whether mining earns more money than it costs, factoring in electricity, hardware costs, and block rewards.
Mining Software: Mining software connects your hardware to the blockchain network, performs hash calculations, and submits valid blocks you find.

N

NerdMiner: A DIY Bitcoin mining device built from cheap microcontrollers like ESP32 boards that solo mines with extremely low hashrate for educational purposes.
Network Hashrate: Network hashrate is the total computing power of all miners working on a blockchain at any given time, measured in hashes per second.
Nonce: A nonce is a random number miners change repeatedly while hashing to find a valid block hash below the target difficulty.

O

Orphan Block: An orphan block is a valid block that gets rejected because another block at the same height was accepted first by the network.
Overclocking: Pushing your mining hardware beyond factory settings to increase hashrate, which boosts your chances but uses more power and generates more heat.

P

Proof of Work: One-sentence definition: Proof of work is used in blockchain systems where miners must solve computationally difficult puzzles to validate transactions...
Pool Mining: One-sentence definition:Mining hardware joined together and if a block is found then the reward is split between the miners depending...
P2Pool: P2Pool is decentralized pool mining that combines small miners' hash power while keeping rewards distributed like solo mining.
Peer-to-Peer (P2P): A peer-to-peer network lets computers connect directly without a central server, which is how cryptocurrency blockchains operate.
Power Supply Unit (PSU): A PSU converts wall power into the specific voltages your mining hardware needs to run, delivering stable electricity to keep your operation hashing 24/7.
Proof of Stake (PoS): A consensus mechanism where validators lock up cryptocurrency to secure the network instead of using mining hardware to solve puzzles.

R

RandomX: RandomX is a CPU-optimized mining algorithm designed to resist ASICs and FPGAs by using random code execution and memory-intensive operations.
ROI (Return on Investment): ROI measures how much profit you make compared to what you spend on mining hardware and electricity—crucial for evaluating solo mining setups.

S

Solo miner: One-sentence definition:A solo miner, a miner that only works for itself and isnt linked up to a public pool Why...
Satoshi: A satoshi is the smallest unit of Bitcoin, equal to 0.00000001 BTC—named after Bitcoin's mysterious creator, Satoshi Nakamoto.
Scrypt: Scrypt is a memory-hard mining algorithm designed to resist ASICs, originally used by Litecoin and other cryptocurrencies.
SHA-256: SHA-256 is the cryptographic hash algorithm used by Bitcoin and some other cryptocurrencies for mining and securing their blockchains.
Share: A mining share is proof your hardware attempted to solve a block, used by pools to track work—but solo miners submit only valid blocks.
Solo Block: A solo block is a block you mined completely on your own without sharing the reward with a mining pool—the ultimate win in solo mining.
Solo Mining: Mining cryptocurrency independently without joining a pool, keeping full block rewards but facing high variance and unpredictable payouts.
Solo Pool: A mining pool that lets you solo mine while handling the technical setup, paying full block rewards minus a small fee if you find a block.
Stratum Protocol: The stratum protocol is a communication standard that lets mining hardware talk to pools or nodes efficiently, sending work and receiving shares.
Stratum V2: An upgraded mining protocol that gives miners more control over transaction selection and improves efficiency and security over the original Stratum.

T

Target: The mining target is a numerical threshold that a block's hash must be below to be valid—it determines how difficult mining is at any given time.
Thermal Throttling: When mining hardware automatically reduces performance to prevent overheating and damage from excessive heat buildup.
Transaction Fee: Extra payment users attach to crypto transactions to incentivize miners to include them in blocks—a bonus on top of the block reward.

U

Undervolting: Reducing GPU or ASIC voltage to lower power consumption while maintaining hashrate, improving efficiency and reducing heat.
USB Miner: A USB miner is a compact cryptocurrency mining device that plugs into a USB port and performs basic hash calculations with minimal power usage.
UTXO: UTXO (Unspent Transaction Output) represents spendable cryptocurrency — like digital coins you can use. Essential for understanding Bitcoin transactions.

V

Variance: Mining variance is the randomness in when you find blocks — you might get lucky and find one early, or go way longer than expected without winning.

W

Wallet: A crypto wallet stores your private keys and lets you receive block rewards from solo mining—essential for claiming your coins if you hit a block.