# Broadcasting Transactions Across the Network

<figure><img src="/files/RJ1kIx9izJvnlHESWot8" alt=""><figcaption></figcaption></figure>

*The only way to confirm the absence of a transaction is to be aware of all transactions.*

\- Satoshi Nakamoto, Bitcoin Whitepaper

For a decentralized network to function effectively, it is imperative that all transactions are **publicly announced**. This transparency allows nodes to be aware of all transactions occurring in real-time, which is essential for preventing double spending. When a node constructs a block, it must ensure that the transactions included do not conflict with any others on the network.

If a node attempts to create a block using a transaction that is recognized as a double spend, **it risks losing the resources invested in constructing that block**. Therefore, there is a **strong incentive for nodes to share transaction information promptly**, minimizing the risk of conflicts and ensuring efficient block validation.


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