# swap-coldkey-announced (/docs/tx/swap-coldkey-announced)

Step two of the two-step migration: reveals the new coldkey and moves
everything the signing coldkey owns — balance, stake, and subnet ownership
— to it. Irreversible once included. The revealed key must hash to exactly
what `announce_coldkey_swap` committed to, and the call fails if the
announcement delay has not elapsed, no announcement exists, or the swap
is frozen by a dispute. After it succeeds, the old coldkey is empty; all
future operations sign with the new coldkey.

| Signer    | Pallet          | Wraps                                    |
| --------- | --------------- | ---------------------------------------- |
| `coldkey` | SubtensorModule | `SubtensorModule.swap_coldkey_announced` |

## Parameters [#parameters]

| Parameter          | Type   | Required | Description                                                                     |
| ------------------ | ------ | -------- | ------------------------------------------------------------------------------- |
| `new_coldkey_ss58` | string | yes      | Coldkey receiving everything; must match the previously announced hash exactly. |

Address parameters (`--hotkey`, `--coldkey`, `--dest`, ...) accept a raw ss58
address, an address-book or proxy-book name, or a local wallet/hotkey name.

## CLI [#cli]

Preview with `--dry-run` (shows fee, effects, and policy result without
submitting), then submit:

```bash
btcli tx swap-coldkey-announced \
  --new-coldkey <ss58|name> --dry-run
btcli tx swap-coldkey-announced \
  --new-coldkey <ss58|name> -w my_coldkey
```

## Python [#python]

```python
import bittensor as sub
from bittensor.wallet import Wallet

wallet = Wallet(name="my_coldkey", hotkey="my_hotkey")
intent = sub.SwapColdkeyAnnounced(new_coldkey_ss58="5F...")

async with sub.Client("finney") as client:
    plan = await client.plan(intent, wallet)   # fee, effects, policy — no submission
    result = await client.execute(intent, wallet)
    if not result.success:
        print(result.error.code, result.error.remediation)
```

Or build it by op name, as an agent would:

```python
await client.execute_tool("swap_coldkey_announced", {...}, wallet)
```