Why does Hardhat's just deployed contract.address differ from the real one?

Question

I am deploying a contract on the testnet with hardhat, but the address returned is not the real address the contract is at in the blockchain.

I am following hardhat's guide.

Code:

async function main() {
  const TokenContract = await ethers.getContractFactory("Token");
  const token = await TokenContract.deploy();
  await token.deployed();

  console.log("Token deployed to:", token.address);
}

Token deployed to: 0x684c903c66D69777377f0945052160C9f778d689

At that address, though, I see a contract that is not mine! If I look into my wallet's transaction in the explorer I can find the contract creation transaction and the real contract, here::

How come?