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.
should be used for questions regarding the buying, selling or exchanging of Bitcoins or other cryptocurrencies for other currencies or commodities.
should be used for questions regarding Bitcoin Core development. This includes questions about the source code and development of Bitcoin Core.
not directly useful (like a commodity) but which can be used as a medium of exchange or a store of value. Essentially, money.
should be used for questions regarding difficulty which encodes the likelihood of one hash to succeed at mining a block. Indirectly, it is a measure of the total hashing power of all miners f…
should be used for questions regarding public keys. A public key is the public half of the public/private keypair. Anyone can use a public key check that a signature is correct, but they can'…
leaked through cryptocurrency transactions or related processes, when subject to analysis and attempts of identification of sources and other properties.
should be used for MultiBit, a now defunct lightweight Bitcoin client.
The process of recovering lost bitcoins or private keys from a wallet/backup
should be used for questions regarding the third Bitcoin testnet. The testnet is a network separate from the main Bitcoin network that allows developers to attempt modifications of the bitcoi…
should be used for questions related to raw transactions, bitcoin transactions that have been serialized for network transmission.
should be used for questions regarding digital signatures. A digital signature proves that the owner of a private key produced or endorsed a given message. These are used in transactions to p…
refers to the rate at which two currencies are exchanged one-for-another.
the measuring unit of the processing power used to secure the Bitcoin network.
A Java library for processing Bitcoin, stores blockchain headers only
should be used for questions related to multi signature transactions. Multisig transactions allow for multiple people to sign a transaction before the transaction can be considered valid.
Questions concerned with (full) nodes, i.e. relay points in the Bitcoin network.
should be used for questions related to double spending. Double spends are when a money is spent more than one time. This is considered a form of fraud.
Confirmations correspond to the number of blocks that are dependent on a given transaction. This includes the block containing that transaction and all blocks after it in the blockchain. The more conf…
should be used for questions regarding how Proof of Work works and Proof of Work algorithms. Proof of Work is a scheme where a 3rd party can verify that someone performed at least a certain a…
an exchange popular in the early years of Bitcoin, where bitcoins could be traded against mora than a dozen national currencies including the US Dollar and the Euro. Insolvent in 2013.
"Application-Specific Integrated Circuit" - An integrated circuit (chip) specifically designed for one task only. Similar to FPGAs, ASICs may be the low-power-consumption future of Bitcoin mining. As …
Collects technical details on the process of creating new addresses.
should be used for questions referring to the company Coinbase and their services. DO NOT USE THIS TAG FOR COINBASE TRANSACTIONS.
Regarding money transfers for different goods and services paid in Bitcoins.
A blockchain-based "smart contract" system with a Turing-complete contract programming language. Questions about Ethereum can also be asked on the dedicated Ethereum site: https://ethereum.stackexchan…
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…
Concerning the broad subject of cryptography and its narrow application in Bitcoin protocol and applications.
Non-Bitcoin "alternative" blockchains, cryptocurrencies or methods of storing and exchanging value
should be used for questions regarding wallet.dat files. A wallet.dat is a file used by Bitcoin Core which stores private keys and other information necessary to spend Bitcoin.
Refers to the process of checking the validity of transactions.
Hierarchical Deterministic wallets or HD wallets are wallets that can be shared amongst different wallet implementation with or without the ability to spend coins.
About Bitcoin as it might be discussed in economics class, e.g. supply, demand and price in theory.