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---
terms: ["blockchain", "blockchains"]
summary: "a distributed ledger of all transactions both past and present, without revealing who the funds came from or went to"

---

{% include untranslated.html %}
### The Basics
A @blockchain is a distributed database that continuously grows with a record of all of the transactions that have occurred with a given cryptocurrency.  This database is often referred to as a ledger because the data contains a large list of transactions that have taken place.  In Monero, these transactions are packaged together into 'blocks' every 2 minutes (on average), and all miners and nodes on the network have copies of these blocks.  

### Monero's @Blockchain
Unlike Bitcoin and other cryptocurrencies, transactions in the Monero @blockchain do not reveal where funds came from or went to, providing anonymity and making the currency completely @fungible. Additionally, the amounts of all transactions are hidden by @RingCT, a feature of Monero. For auditing or other transparency purposes a user can share a @view-key to prove they control certain amounts of Moneroj.