Introduction: The Public Ledger
Many people believe that because cryptocurrencies don't require a name, they are completely anonymous. This is a myth. While your identity isn't written on the blockchain, the IP Address of the computer that broadcasts the transaction absolutely is visible to the network nodes.
How Chainalysis Works
Companies that track criminals on the blockchain run hundreds of 'Listening Nodes' worldwide. When you send Bitcoin, your computer tells the network. The listening nodes record both the transaction details and the **Source IP Address**. By correlating this data over time, investigators can map a specific 'Anonymous' wallet directly to your home Wi-Fi.
Conclusion
True crypto anonymity requires masking your network layer. If you trade sensitive digital assets, using a VPN or Tor is just as important as keeping your private keys safe. Check your network's broadcast IP here.