What is Address (Bitcoin / Crypto Address)?
An address is a string derived from a public key (and a script, in Bitcoin) that identifies a destination for receiving cryptocurrency. Addresses are safe to share publicly; they reveal nothing about the private key needed to spend the associated funds.
Why Address (Bitcoin / Crypto Address) matters
Understanding Address (Bitcoin / Crypto Address) is part of building a solid mental model of how Bitcoin, blockchain and Web3 systems actually work. Concepts in the Bitcoin category sit at the foundation of the broader stack — get them right and the rest is far easier.
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Related terms
- Public Key — The shareable counterpart to a private key.
- Private Key — The secret number that authorises spending from an address.
- UTXO (Unspent Transaction Output) — Bitcoin's accounting model: balances as a set of unspent outputs.
More bitcoin terms
- Block Header — The metadata at the top of each block.
- Block Reward — New coins paid to the miner of a block.
- Difficulty — A parameter that controls how hard it is to mine a block.
- Double Spend — Attempting to spend the same coin twice.
- Halving — The scheduled 50% cut in Bitcoin's block subsidy.
- Hash Rate — The total computational power securing the network.
- Mining — Producing new blocks by performing Proof of Work.
- Nakamoto Consensus — Bitcoin's consensus rule: follow the chain with the most work.
Keep exploring
Continue with the full blockchain glossary — 136 terms in total — or read the developer blog and FAQ for deeper context.