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Crypto Wiki

A comprehensive encyclopedia of cryptocurrency, mining, blockchain, and data center terms.

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A

ASIC (Application-Specific Integrated Circuit)

An ASIC is a microchip custom-designed for a single specific computational task. In cryptocurrency mining, ASICs are built exclusively to compute a particular hashing algorithm, delivering vastly superior performance and energy efficiency compared to general-purpose processors.

B

Bitcoin

Bitcoin is the first and most widely adopted decentralized cryptocurrency, operating on a peer-to-peer network secured by proof-of-work mining. It was created in 2009 by the pseudonymous Satoshi Nakamoto.

Blockchain

A blockchain is a distributed, immutable digital ledger that records transactions across a peer-to-peer network. Each block contains a cryptographic hash of the previous block, creating a tamper-evident chain of data.

C

Cryptocurrency Wallet

A cryptocurrency wallet is software or hardware that stores the private keys needed to access and manage cryptocurrency holdings on a blockchain. Wallets do not store coins themselves but rather the cryptographic keys that prove ownership.

D

Dogecoin

Dogecoin is a Scrypt-based cryptocurrency originally created as a joke but which grew into one of the most widely recognized digital currencies, known for its active community and tipping culture.

E

Ethereum

Ethereum is a decentralized computing platform that enables smart contracts and decentralized applications (dApps). It transitioned from proof-of-work to proof-of-stake consensus in September 2022.

F

FPGA (Field-Programmable Gate Array)

An FPGA is a reconfigurable integrated circuit that can be programmed after manufacturing to implement custom hardware logic. In mining, FPGAs bridged the gap between GPUs and ASICs, offering better efficiency than GPUs with more flexibility than ASICs.

G

GPU (Graphics Processing Unit)

A GPU is a specialized processor originally designed for rendering graphics but widely adopted for cryptocurrency mining due to its highly parallel architecture, capable of performing many calculations simultaneously.

H

Halving

A halving is a programmed event in certain cryptocurrencies where the block reward paid to miners is cut in half, reducing the rate of new coin issuance. Bitcoin's halving occurs approximately every four years.

Hashrate

Hashrate is the measure of computational power being used to mine and process transactions on a proof-of-work blockchain. It is expressed in hashes per second (H/s) and its multiples.

K

Kaspa

Kaspa is a proof-of-work cryptocurrency implementing the GHOSTDAG protocol, enabling high block rates and near-instant transaction confirmations while maintaining full decentralization.

L

Lightning Network

The Lightning Network is a Layer 2 payment protocol built on top of Bitcoin that enables near-instant, low-cost transactions by creating off-chain payment channels between participants.

Litecoin

Litecoin is a peer-to-peer cryptocurrency created as a lighter, faster alternative to Bitcoin. It uses the Scrypt hashing algorithm and offers 4x faster block times.

M

Merged Mining

Merged mining (also called Auxiliary Proof of Work) allows miners to simultaneously mine two or more cryptocurrencies that use the same hashing algorithm, without any additional computational cost.

Mining Difficulty

Mining difficulty is a dynamically adjusted parameter that controls how hard it is to find a valid block hash in a proof-of-work blockchain. It ensures consistent block production times regardless of total network hashrate.

Mining Pool

A mining pool is a collaborative group of cryptocurrency miners who combine their computational resources (hashrate) over a network to increase their chances of finding a block and earning rewards, which are then distributed proportionally among participants.

Mining Rig

A mining rig is a complete hardware system assembled specifically for the purpose of cryptocurrency mining, ranging from a single ASIC unit to multi-GPU custom builds to industrial-scale rack-mounted deployments.

N

Nonce

A nonce (number used once) is a 32-bit field in a block header that miners increment to produce different hash outputs when attempting to find a valid block in proof-of-work mining.

P

PDU (Power Distribution Unit)

A PDU is a device that distributes electrical power to multiple equipment loads in a data center or mining facility. PDUs range from simple power strips to intelligent units with per-outlet monitoring, remote switching, and environmental sensing.

Proof of Stake

Proof of Stake (PoS) is a consensus mechanism where validators are chosen to create new blocks based on the amount of cryptocurrency they have staked as collateral, rather than computational work.

Proof of Work

Proof of Work (PoW) is a consensus mechanism that requires network participants to expend computational energy solving cryptographic puzzles to validate transactions and create new blocks, securing the blockchain against manipulation.

S

Seed Phrase

A seed phrase (also called a recovery phrase or mnemonic phrase) is an ordered list of 12 or 24 words that encodes the master private key of a cryptocurrency wallet, enabling complete wallet recovery from a single human-readable backup.

Stablecoin

A stablecoin is a type of cryptocurrency designed to maintain a stable value relative to a reference asset, typically a fiat currency like the US dollar. They are widely used as a medium of exchange and settlement layer in crypto markets.

T

Token

A token is a digital asset created and managed on an existing blockchain platform, as opposed to coins like Bitcoin that operate on their own native blockchain. Tokens can represent anything from utility rights to ownership shares.

Z

Zcash

Zcash is a privacy-focused cryptocurrency that uses zero-knowledge proofs (zk-SNARKs) to enable fully shielded transactions where the sender, recipient, and amount remain encrypted on the blockchain.