> For the complete documentation index, see [llms.txt](https://docs.rei.network/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.rei.network/rei-dao/guides/using-bls/check-bls.md).

# Check BLS

**How to check whether the validator starts bls correctly**. After starting the validator after adding the bls unlock command, using the rei attach command to connect to the ipc.

```
rei attach --datadir ~/reiDataDir
```

**Type in the console**

```
rei.getMinerInfo('blockNumber')
```

Where `blockNumber` is the hexadecimal of the block height you want to view, it is recommended to use the latest block height. Press Enter to view the validator information, **for example**

```
> rei.getMinerInfo('0xe11791')
> {
	"coinbase": "0x9b1aa72d791cb5143ca5e3816d3920501af081cb",
	"unlockAccount": [
		"9b1aa72d791cb5143ca5e3816d3920501af081cb"
	],
	"unlockBLSPublicKey": "0xb16c90a5b22add64a4989583f2338fabc34ee89cedca2fb5f9c1d42a9ea41cae65abd695f423424a661855b30d736cb8",
	"registerBLSPublicKey": "b16c90a5b22add64a4989583f2338fabc34ee89cedca2fb5f9c1d42a9ea41cae65abd695f423424a661855b30d736cb8"
}
```

Compare the public keys in the `unlockBLSPublicKey` and bls keystore files to see if they are the same

{% hint style="info" %}
***NOTE:*** `registerBLSPublicKey` will be displayed correctly after the block 15084585, and the previous block height will be displayed as `null`, but this does not affect.
{% endhint %}