Tags
A tag is a keyword or label that categorizes your question with other, similar questions.
Bitcoin Core is a full node implementation of the Bitcoin protocol with a wallet and GUI. Bitcoin Core is a MIT-licensed Qt 5 GUI application for the original Bitcoin codebase. Additional/previous names include "Bitcoin-Qt", "Satoshi-Client", and "Standard Client". This tag should be used when referring to the Bitcoin Core software.
4104 questions
Transactions are signed messages carrying out the transfer or generation of bitcoins. They are broadcast throughout the Bitcoin network and, if accepted, integrated in the blockchain.
3355 questions
The blockchain is the journal of all confirmed Bitcoin transactions. It consists of a linked sequence of blocks and each block contains a list of transactions. For questions about the eponymous company or its products please use [blockchain.info]!
2830 questions
A wallet manages a user's private keys. Wallet software is used to send and receive Bitcoin. It also keeps track of the user's transactions, addresses, and balance.
2393 questions
bitcoind is the command-line software for Bitcoin Core. It stands for "Bitcoin Daemon" where a daemon is any computer process which runs in the background ("service" in Windows terminology).
2300 questions
Tells a user how to pay a recipient. Bitcoin addresses are strings consisting of numbers and letters that begin with '1', '3', or 'bc1'. Addresses encode the recipient's output script that includes either a public key or a hash of a public key or script. Bitcoin addresses should not be confused with mailing addresses or IP addresses.
1065 questions
Transaction fees are paid to miners by the sender of a transaction.
This money rewards miners for the work they do in putting transactions into a specific order and adding them to new blocks to be added to the list of transactions known as the blockchain.
961 questions
Proposed payment system leveraging payment channels which allow re-negotiation of balances that finally get executed on the Bitcoin blockchain.
955 questions
Private keys are used for signing transactions and allow the holder of the private key to spend the Bitcoin associated with the address derived from the private key.
869 questions
A remote-procedure-call (RPC) interface provided by the Bitcoin Core wallet and it's companion software bitcoind. This RPC interface uses the Javascript Object Notation (JSON) serialization format for data and allows other software programs to interact with Bitcoin-Core.
832 questions
A mining pool is a way of sharing the work needed to find a block. Miners are rewarded in proportion to the amount of computing power they contribute to the problem, with various ways of calculating returns. Use this tag when specifically asking about operating a mining pool or about pooled mining but not other forms of mining.
796 questions
mining theory concerns the function, the reason for, and the underlying concepts of Bitcoin mining.
790 questions
Exchanges are sites which allow for the conversion of Bitcoins to various world currencies as well as alternate cryptocurrencies.
772 questions
Blockchain Ltd. is a company that offers a web wallet and provides a blockchain explorer under the domain blockchain.com.
718 questions
A client is any application which allows a user to connect to the Bitcoin (or alternate) network. Alternately, "client" may refer to a non-standard user interface which interacts with the Bitcoin network through a standard client.
711 questions
An API is an Application Programming Interface and services often have APIs available for developers to write software which accesses information offered by the service.
660 questions
The components of the blockchain and a data structure that collects transactions.
630 questions
A simple, stack-based, Forth-like programming language using "opcodes" to express spending conditions.
603 questions
Source code and development of Bitcoin Core, the reference implementation of Bitcoin.
593 questions
Segregated Witness (segwit) defines a transaction format introduced in 2017 which doesn't include signatures in the transaction identifier (txid).
578 questions
Multi-signature addresses require m-of-n signatures to authorize spending funds sent to them.
543 questions
BIP32, or Hierarchical Deterministic Wallets. HD wallets are wallets that can be shared amongst different wallet implementation with or without the ability to spend coins.
https://github.com/bitcoin/bips/blob/master/bip-0032.mediawiki
513 questions
A hash is the output of a hash function, a function which .is a mathematically reproducible but irreversible process that takes in an arbitrary length input and produces a fixed length output. The same input will always result in the same output. Hashing is central to Bitcoin mining as well as the generation of Bitcoin addresses.
505 questions
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't generate the signature themselves with the public key.
499 questions
This tag should be used for questions related to the Bitcoin network and communication between different nodes on the Internet.
470 questions
The process of recovering lost bitcoins or private keys from a wallet/backup
467 questions
Questions about Litecoin are generally off topic unless they have applicability to Bitcoin.
This tag should be used for questions regarding Litecoin, a cryptocurrency based on Bitcoin. Litecoin is very similar to Bitcoin with a few distinguishing differences: blocks that are mined every 2.5 minutes on average and the scrypt hashing algorithm for its Proof of Work algorithm.
461 questions
The creation and ongoing work for different existing and future Bitcoin-related projects and source code.
448 questions
Alternative cryptocurrencies are OFF-TOPIC unless the question is applicable to Bitcoin.
440 questions
A digital signature proves that the owner of a private key produced or endorsed a given message. These are used in transactions to prove that an output can be spent in a transaction.
437 questions
Mining hardware includes all equipment such as CPUs, GPUs, FPGAs, and ASICs that can be used effectively to calculate hashes for mining Bitcoin. This also covers the production, and producers of such equipment.
428 questions
This is the process of bringing a Bitcoin client up to date with the list of all Bitcoin transactions known as the blockchain.
424 questions