Learning Center
Glossary

Bitcoin Glossary

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A

B

C

D

E

F

G

H

I

J

K

L

M

N

O

P

Q

R

S

T

U

V

W

X

Y

Z

#

21 Million

51% Attack

A

Address

Anonymity

Anti-Money Laundering (AML)

Application-Specific Integrated Circuit (ASIC)

Assume Valid

Atomic Multi-Path Payments (AMP)

B

Backwards Compatibility

Base58

Base64

Basis of Lightning Technology (BOLT)

Batching

Bech32

Binary

Bit

Bitcoin

Bitcoin Core

Bitcoin Implementations

Bitcoin Improvement Proposal (BIP)

Bitcoin-Qt

Bitcoind

Block

Block Explorer

Block Header

Block Height

Block Reward

Block Size

Block Subsidy

Block Weight

Blockchain

Bloom Filter

Brokerage

BTC

Byte

Byzantine Fault Tolerance (BFT)

Byzantine Generals Problem

C

Censorship Resistance

Chain Analysis

Change Output

Checksum

Child-Pays-for-Parent (CPFP)

Coin Selection

Coinbase

CoinJoin

Cold Storage

Common Input Ownership Heuristic

Confirmation

Consensus

Cryptography

Custodial

Cypherpunk

D

Decentralized Exchange (DEX)

Decentralized Ledger

DER Format

Derivation Path

Difficulty

Discreet Log Contract (DLC)

Discrete Log Problem (DLP)

Double Spend

Dust

Dust Attack

E

ECDSA

Eclipse Attack

Encoding

Encryption

Exchange

F

Fee

Fork

Fungibility

G

Generator Point

Genesis Block

H

Halving

Hard Cap

Hard Fork

Hardware Wallet

Hash Function

Hash Rate

Hashed Time Locked Contract (HTLC)

Hexadecimal

Hierarchical Deterministic (HD) Wallet

HODL

Hot Wallet

I

Immutability

Initial Block Download (IBD)

Invoice

J

Just-a-Bunch-of-Keys (JBOK)

K

Know Your Customer (KYC)

L

Layer

Light Client

Lightning Channel

Lightning Implementations

Lightning Network

Liquid Network

M

M-of-N

Malleability

Mempool

Merkelized Alternative Script Tree (MAST)

Merkle Root

Merkle Tree

Miner-Activated Soft Fork (MASF)

Mining

Mining Pool

Mixing

Mnemonic

Multi-Path Payment (MPP)

Multisig

MuSig

N

Neutrino

Node

Non-Custodial

Nonce

O

Off-Chain

On-Chain

Opcode

Open Source

Oracle Problem

Orphan Block

P

P2PK

P2PKH

P2SH

P2WPKH

P2WSH

Peer-to-Peer (P2P)

Penalty Transaction

Point Time Locked Contract (PTLC)

Private Key

Proof-of-Work (PoW)

Protocol

PSBT

Pseudonym

Public Key

Q

QR Code

R

Redeem Script

Regtest

Reorganization

Replace-By-Fee (RBF)

Round Amounts Heuristic

S

Satoshi

Satoshi Nakamoto

Schnorr Signature

Script

Script Type Heuristic

ScriptPubKey

ScriptSig

SEC Format

Secp256k1

Seed

SegWit

SHA-256

Sidechain

Sighash Flag

Signature

Signet

Simplified Payment Verification (SPV)

Smart Contract

Soft Fork

Sybil Attack

T

Taint

Taproot

Tapscript

tBTC

Testnet

Timelock

Transaction

txid

U

Unix Timestamp

Unspent Transaction Output (UTXO)

User-Activated Soft Fork (UASF)

UTC

Utreexo

UTXO Set

V

vByte

vSize

W

Wallet

Wallet Import Format (WIF)

Watch Only

Weight Unit

Whale

Whitepaper

Witness

Witness Script

wtxid

X

Xprv

Xpub

Y

Ypub

Z

Zpub