A tag is a keyword or label that categorizes your question with other, similar questions. Using the right tags makes it easier for others to find and answer your question.

Questions about Ethereum are off topic. A blockchain-based "smart contract" system with a Turing-complete contract programming language. Questions about Ethereum should be asked on the dedicated Et…
189 questions
Legal issues relating to the use of Bitcoins or similar crypto-currencies. This includes issues of legal compliance with legal areas such as taxation, money laundering, international currency controls…
189 questions
The Elliptic Curve Digital Signature Algorithm
187 questions
Questions about alternative blockchains are off topic unless they are applicable to Bitcoin.
185 questions
Fraud is the use of intentional deception for financial gain.
182 questions
Every node has their unique memory pool in which it tracks unconfirmed transactions. Use this tag for questions on how transactions enter and exit the mempool, how the mempool is delimited and other a…
182 questions
Pay to Script Hash is a transaction output format that allows you to lock funds to the execution of arbitrary scripts. It was defined in BIP0016.
178 questions
The process of copying one or more files to an alternate location for safekeeping. Typically refers to the copying of Bitcoin's wallet.dat file but may also refer to the built-in JSON API command to p…
174 questions
About Bitcoin as it might be discussed in economics class, e.g. supply, demand and price in theory.
169 questions
For questions relating to encryption operations and algorithms as they apply to crypto-currencies specifically.
165 questions
Integrating Bitcoin services with the help of PHP-based frameworks or using PHP
165 questions
Questions about crypto-currencies and the Linux operating system, including mining and transferring Bitcoins on Linux.
163 questions
Questions concerning terminology, jargon, abbreviations, acronyms and phrases that are essential to the cryptocurrency community.
163 questions
Current amount of currency units (bitcoins, ppcoins, real money, etc.).
162 questions
Relates to attempts to harm the Bitcoin network. In cryptography, an attack is a method/technique to break the code. Bitcoin also has to deal with other types of attack, such as double spends and deni…
161 questions
Questions about Bitcoin in the context of the Ubuntu Linux distribution.
160 questions
The "coinbase transaction" is the transaction inside a block that pays the miner his block reward.
155 questions
Questions about keeping wallets and e-wallets safe.
154 questions
CGMiner is an open source ASIC/FPGA miner for Windows, Linux and macOS.
151 questions
should be used for questions regarding seed phrase, seed recovery phrase or backup seed phrase list of words
146 questions
A hash-tree used to allow efficient and secure verification of contents of large data structures. Merkle-Trees are employed in Bitcoin to prove existence of transactions in a block.
146 questions
Storing a wallet offline, i.e. making the private keys inaccessible from the web. This is e.g. implemented through use of Paper and Hardware Wallets.
140 questions
Related to different MacOS operating systems and the Mac hardware.
139 questions
A complete implementation of a Lightning Network node developed by Lightning Labs and other contributors. Licensed under MIT. LND needs btcd, bitcoind, or neutrino as a back-end service.
139 questions
A majority attack, or 51% attack, is an attempt at solo-mining a longer chain to outpace the main chain.
137 questions
Collects questions about mining setups on basis of GPUs.
133 questions
When running Bitcoin Core client in regtest mode.
132 questions
Java is a programming language.
130 questions
Scalability refers to the capability of a system or network to cope with growing adoption and workload.
129 questions
A 256-bit variant of Secure Hash Algorithm 2
128 questions
Related to the software used for mining cryptocurrencies
126 questions
systems, such as Bitcoin, that lack any single central authority to validate their operations and which have to use other means to determine the validity of operations.
124 questions
refers to the schedule by which the mining reward for a blockchain based currency is dispensed.
124 questions
Questions about alternative cryptocurrencies are off topic unless they are applicable to Bitcoin.
123 questions
Proof of stake is an alternative consensus mechanism that adapts mining success chances with the proportion of the cryptocurrency's tokens held by the miner.
119 questions
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