monero-site/_i18n/pl/resources/moneropedia/fluffyblocks.md

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---
summary: 'a way of saving bandwidth when sending new blocks around the network'
terms: ["fluffy blocks", "fluffyblocks"]
---
{% include disclaimer.html translated="no" translationOutdated="no" %}
### The Basics
A @block is made up of a header and @transactions. Fluffy Blocks only
contain a header, a list of transaction indices, and any transactions that
the node recieving the block may be missing. This saves bandwidth because
nodes might already know about most or all of the transactions in the block
and they don't need to be sent them again.
### See Also
* [BIP152 "Compact Block
Relay"](https://github.com/bitcoin/bips/blob/master/bip-0152.mediawiki)
* [Xthin](https://github.com/BitcoinUnlimited/BitcoinUnlimited/blob/release/doc/bu-xthin-protocol.md)