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.

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…
202 questions
Fraud is the use of intentional deception for financial gain.
199 questions
Related to the creation and usage of paper wallets, mostly used for cold storage.
198 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.
197 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…
197 questions
Questions concerning terminology, jargon, abbreviations, acronyms and phrases that are essential to the cryptocurrency community.
191 questions
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…
187 questions
Questions about alternative blockchains are off topic unless they are applicable to Bitcoin.
185 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…
182 questions
Questions about crypto-currencies and the Linux operating system, including mining and transferring Bitcoins on Linux.
176 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…
173 questions
Integrating Bitcoin services with the help of PHP-based frameworks or using PHP
172 questions
The "coinbase transaction" is the transaction inside a block that pays the miner their block reward. DON'T USE THIS TAG FOR THE SERVICE NAMED 'Coinbase'!
172 questions
About Bitcoin as it might be discussed in economics class, e.g. supply, demand and price in theory.
171 questions
Current amount of currency units (bitcoins, ppcoins, real money, etc.).
171 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.
171 questions
Questions about keeping wallets and e-wallets safe.
168 questions
For questions relating to encryption operations and algorithms as they apply to crypto-currencies specifically.
167 questions
Questions about Bitcoin in the context of the Ubuntu Linux distribution.
162 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.
162 questions
should be used for questions regarding seed phrase, seed recovery phrase or backup seed phrase list of words
160 questions
CGMiner is an open source ASIC/FPGA miner for Windows, Linux and macOS.
150 questions
Taproot is an activated Bitcoin softfork designed to improve scripting and multisignature capabilities.
150 questions
A 256-bit variant of Secure Hash Algorithm 2
149 questions
Related to different MacOS operating systems and the Mac hardware.
149 questions
A majority attack, or 51% attack, is an attempt at solo-mining a longer chain to outpace the main chain.
148 questions
When running Bitcoin Core client in regtest mode.
147 questions
Scalability refers to the capability of a system or network to cope with growing adoption and workload.
141 questions
Core Lightning (formerly c-lightning) is a standard compliant implementation of the Lightning Network protocol. The Lightning Network is a scalability solution for Bitcoin, enabling secure and instant…
139 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.
138 questions
refers to the schedule by which the mining reward for a blockchain based currency is dispensed.
134 questions
Java is a programming language.
133 questions
Related to the software used for mining cryptocurrencies
133 questions
Collects questions about mining setups on basis of GPUs.
132 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.
131 questions
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