When a Bitcoin node receives a transaction, it:
1. Receives it from another node.
2. Verifies that it’s valid.
3. Stores it in the mempool if valid.
4. Propagates it to other nodes.
5. If it’s a mining node, it may include the transaction in a new block.
Yes, that’s the process. Verifying validity is critical; without it, how could we trust the digital ledger's integrity?
“verify, don’t trust” principle is what gives Bitcoin its security and resilience. The network’s integrity doesn’t depend on who sends the data, only on whether the data follows the rules.
