Yes, Kakarot is currently built on top of Starknet, and every Kakarot transaction is a transaction on Starknet.

# Is Kakarot part of the Starknet ecosystem?

Elias Tazartes (Eikii)

Is Kakarot part of the Starknet ecosystem?

Hey there! 

I am using the Oz Nile framework for smart contract development on Starknet. More specifically, I am testing the proxy upgrade feature, but my tests fail with the error message TypeError: int() can't convert non-string with explicit base. This happens when nile.signer tries to sign a transaction. Here's the snippet in the stack trace below. 

```
def sign_transaction(self, sender, calls, nonce, max_fee):
        """Sign a transaction for an Account."""
        (call_array, calldata) = from_call_to_call_array(calls)
        message_hash = get_transaction_hash(
>           int(sender, 16), call_array, calldata, nonce, int(max_fee)
        )
```

Some relevant info:
cairo-lang==0.10.0
cairo-nile==0.8.2
openzeppelin-cairo-contracts==0.4.0b
pytest==7.1.2
python=3.9 

_This question was originally posted on [StarkNet Discord](https://www.newton.so/view?tags=discord)_

Cairo/Nile: Testing the proxy upgrade feature, but my tests fail with the error message TypeError: int() can't convert non-string with explicit base.

I have a question about how to print "Hello World" in Cairo 1. How do I log/print ?

How do I log/print in Cairo 1.0?

Hi, I'm using pytest for testing cairo contract. I found that a simple starknet setup and initial call for contract cost 34 seconds. Is there a way to accelerate test?

upd: yes, [this works](https://www.notion.so/Hi-I-m-using-pytest-for-testing-cairo-contract-I-found-that-a-simple-starknet-setup-and-initial-ca-db2282fc02f2463aadaf63eac655df6f). but I found that compiling contract cost 7s and deploying contract cost 25s. These two operations are the most time-consuming

 Is there a way to accelerate pytest for cairo contract?

Hello guys, does one know how to modify keccak.cairo and/or packed_keccak.cairo to compute a 512bits keccak hash instead of 256 bits?

I'm following a paper that needs 256 bits collision resistance so i need 512 bit keccak. 

There should only a few parameters to change but its quite hard to find them in the Cairo code 

_This question was originally posted on [StarkNet Discord](https://www.newton.so/view?tags=discord)_

---

This question is participating in [Newton Bounties | Incentivized Test Program](https://www.notion.so/Newton-Bounties-Incentivized-Test-Program-94322ad48e7d40a3adcf36f6b26174cd) Every verified valid question gets $10 USDC (mainnet)

How to modify keccak.cairo and/or packed_keccak.cairo to compute a 512bits keccak hash instead of 256 bits?


# Will Kakarot be an L3 on top of the Starknet validity rollup?

Will Kakarot be an L3 on top of the Starknet validity rollup?

Please make the function return the floor of the value so we are returned a felt


Test 1


Input(s): 4


Output(s): 2


Test 2


Input(s): 16


Output(s): 4


Test 3


Input(s): 127


Output(s): 6


Test 4


Input(s): 1099511600000


Output(s): 39


ㅤ
_This question was originally posted on [Triality](https://triality.org/question/974)_

How do I write a log based 2 function in Cairo?

Do you know if I can use a Braavos account as a multisig wallet?

Popular tags

Is Kakarot part of the Starknet ecosystem?

Is Kakarot part of the Starknet ecosystem?

1 answers

Your answer

Related

You may find useful