---
# System prepended metadata

title: Tracing stakefish validator NFTs

---

# Tracing stakefish validator NFTs

stakefish recently [launched](https://blog.stake.fish/stake-mint-earn/) validator NFT, which is said to be noncustodial. So we're going to deep dive and trace the transactions to see how it works

<kbd>![](https://i.imgur.com/75rfx4G.png)</kbd>

## Mint

The NFT Manager is at: [0xffff2d93c83d4c613ed68ca887f057651135e089](https://etherscan.io/address/0xffff2d93c83d4c613ed68ca887f057651135e089)

Looking at the first mint at tx [0xb22ff8edd3909c447de91162dc0a387f0bebfbe487a8d0a67fa1fa3075216966](https://etherscan.io/tx/0xb22ff8edd3909c447de91162dc0a387f0bebfbe487a8d0a67fa1fa3075216966)


![](https://i.imgur.com/VLEU3DZ.png)

Events confirms the validator contract address, which is the same as withdrawal address.
![](https://i.imgur.com/gS898N8.png)

## Deposit

Analyzing the validator contract address, I find the Beaconchain transfer [0x72a73d2c52284f22aec675e78e663aef55edf5d8d7f33c4650a036f396fab595](https://etherscan.io/tx/0x72a73d2c52284f22aec675e78e663aef55edf5d8d7f33c4650a036f396fab595).

![](https://i.imgur.com/BpOmOYu.png)

## Verify the Withdrawal credentials

From the deposit, we trace it to the validator pubkey https://beaconscan.com/validator/0x97e9838a7d2d62db1847b90b0c2a58239ca78b8d144ffda991ae7945817850704845cdf6fa389fd2c4142044ff9ebfc8#deposits

![](https://i.imgur.com/OFQUHKc.png)

And more: https://beaconscan.com/slot/5620779#deposit

The withdrawal credentials is:

```
0x010000000000000000000000ce9e8587e5d5539a00d0a3357b4d8ae089dec8bf
```

which means it's a [0x1 ETH1](https://github.com/ethereum/consensus-specs/pull/2149) withdrawal credentials pointing to `ce9e8587e5d5539a00d0a3357b4d8ae089dec8bf` and yes, that matches with the smart wallet address.

When withdrawal or sweep happens, the funds will be transfered to smart wallet, and the owner can withdraw() out of it.

## Withdraw

https://etherscan.io/token/0xffff2d93c83d4c613ed68ca887f057651135e089#writeContract

![](https://i.imgur.com/u80o0jS.png)


I hope that's helpful. Let me know if there is anything else to look at.